Reference Standards: Search Standards

• Features two common alkyl halides—chloromethane and chloroethane—that can form during drug synthesis.
• High-concentration (5,000 μg/mL) solution maximizes flexibility; ideal for analyzing pharmaceutical genotoxic impurities (GTIs).
• Quantitatively tested to confirm composition and stability; detailed support documentation provided.

• Accurately identify and quantify pesticide residues by GC-MS/MS in fruits, vegetables, botanicals, and herbals such as tea, ginseng, ginger, echinacea, and dietary supplements.
• Comprehensive 203-compound kit covers food safety lists by the FDA, USDA, and other global governmental agencies; individual ampuls also sold separately.

• Accurately detect and quantify pesticides of global food safety concern in a wide range of fruits, vegetables, and other commodities by LC-MS/MS.
• Full kit contains 204 compounds of interest, covering many LC-determined pesticides listed by government agencies; individual ampuls also sold separately.

• Contains 75 compounds in one convenient ampul for the analysis of VOCs in solid waste.
• Quantitatively analyzed to confirm concentration and identity of each compound.
• Excludes pentachloroethane for labs experiencing elevated tetrachloroethene response caused by pentachloroethane breakdown.

• Fewest mixtures needed for calibration and matrix spikes.
• Mixtures formulated for maximum stability.
• Contains most routinely analyzed compounds.

• Contains 76 compounds in one convenient ampul for the analysis of VOCs in solid waste.
• Quantitatively analyzed to confirm concentration and identity of each compound.

• Meet specific cannabis analysis needs of California set forth by the Bureau of Cannabis Control for regulated category I and II residual pesticide reporting—and of states with similar regulations/programs.
• Ideal for creating multipoint (5-point minimum suggested) calibration curves for GC- and LC-MS/MS.
• Verified composition and stability.
• 66 compounds in 6 x 1 mL ampuls at 100 μg/mL.
• Prepared stock product eliminates the need for in-house standards preparation.
• Restek has the products and expertise you need for cannabis analysis: www.restek.com/cannabis

• Designed for cannabis labs testing residual solvents at different threshold limits by headspace GC.
• Contains 20 commonly analyzed solvents in one convenient solution.
• Verified composition and stability.
• In stock and available for immediate shipment.

• Meet specific cannabis pesticide residue analysis needs of Oregon – and states with similar pesticide residue regulations/programs.
• Verified composition and stability.
• 59 compounds in 6 x 1 mL ampules at 600 µg/mL – resulting in a convenient 100 µg/mL solution when blended immediately before use.
• Prepared stock product eliminates the need for in-house standards preparation.

• Developed specifically for using LC coupled with GC-FID to accurately determine hydrocarbons found in mineral oils, which can migrate from processing equipment and packaging into food.
• This 10-component mix contains both mineral oil saturated hydrocarbon (MOSH) and mineral oil aromatic hydrocarbon (MOAH) markers that are used to accurately identify GC retention time limits for integration.

• Multicomponent mixes simplify standard prep and reduce variability.
• Ideal for USP <467> residual solvents analysis.
• Verified composition and stability.

• Multicomponent mixes simplify standard prep and reduce variability.
• Ideal for USP <467> residual solvents analysis.
• Verified composition and stability.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Formulated to contain the 16 major European Food Safety Authority (EFSA) PAH compounds.
• High concentration (100 μg/mL) solution provides value and flexibility. Dilute as needed for fortification and calibration mixes.
• Low-volatility toluene solvent provides longer shelf life, which helps ensure more accurate results.
• Broad solvent miscibility—compatible with acetonitrile, the QuEChERS solvent.
• Pair with Rxi-PAH GC column for easy separation of critical PAH compounds from common interferences in food and environmental samples.
• HPLC compatible when diluted in appropriate solvent and analyzed with Pinnacle II PAH columns or UHPLC compatible on the Pinnacle DB PAH column.

• Formulated to contain the 16 major European Food Safety Authority (EFSA) PAH compounds.
• High concentration (100 μg/mL) solution provides value and flexibility. Dilute as needed for fortification and calibration mixes.
• Low-volatility toluene solvent provides longer shelf life, which helps ensure more accurate results.
• Broad solvent miscibility—compatible with acetonitrile, the QuEChERS solvent.
• Pair with Rxi-PAH GC column for easy separation of critical PAH compounds from common interferences in food and environmental samples.
• HPLC compatible when diluted in appropriate solvent and analyzed with Pinnacle II PAH columns or UHPLC compatible on the Pinnacle DB PAH column.

• Designed for use in all QuEChERS methods for pesticides in fruits and vegetables, including the original unbuffered method, AOAC 2007.01, and EN15662.
• Ideal for initial method evaluations and ongoing method performance validations.
• Optimized blend of chemically compatible analytes for maximum stability and shelf life.
• Precise formulation improves data quality and operational efficiency; spend more time running samples and less time sourcing and preparing standards.
• Quantitatively analyzed to confirm the composition and stability of each mixture.

• Designed for use in all QuEChERS methods for pesticides in fruits and vegetables, including the original unbuffered method, AOAC 2007.01, and EN15662.
• Ideal for initial method evaluations and ongoing method performance validations.
• Optimized blend of chemically compatible analytes for maximum stability and shelf life.
• Precise formulation improves data quality and operational efficiency; spend more time running samples and less time sourcing and preparing standards.
• Quantitatively analyzed to confirm the composition and stability of each mixture.

• Designed for use in all QuEChERS methods for pesticides in fruits and vegetables, including the original unbuffered method, AOAC 2007.01, and EN15662.
• Ideal for initial method evaluations and ongoing method performance validations.
• Optimized blend of chemically compatible analytes for maximum stability and shelf life.
• Precise formulation improves data quality and operational efficiency; spend more time running samples and less time sourcing and preparing standards.
• Quantitatively analyzed to confirm the composition and stability of each mixture.

• Designed for use in all QuEChERS methods for pesticides in fruits and vegetables, including the original unbuffered method, AOAC 2007.01, and EN 15662.
• Kit contains organochlorine, organonitrogen, organophosphorus, and carbamate pesticides commonly used on fruits and vegetables.
• Volatile, polar, active, base-sensitive, and nonvolatile compounds are included to allow comprehensive evaluation of QuEChERS extraction and cleanup efficiencies, and optimization of GC and LC instrumental conditions.
• Ideal for initial method evaluations and ongoing method performance validations.
• Analytes are divided into three ampuls based on compatibility for maximum stability and shelf life.*
• Precise formulations improve data quality and operational efficiency; spend more time running samples and less time sourcing and preparing standards.
• Quantitatively analyzed to confirm the composition and stability of each mixture.

*When combining compounds with different functionalities, chemical stability can be an issue. The analytes in this kit are separated into three mixes to ensure maximum long-term storage stability. For analysis, a fresh working standard should be prepared by combining the three kit mixes in a 1:1:1 ratio to prepare a 100 µg/mL working standard solution. Once blended, Restek does not recommend storing working standards or subsequent dilutions for future use.

Contains 1 mL each of these mixtures.
31153: QuEChERS Performance Standard A
31154: QuEChERS Performance Standard B
31155: QuEChERS Performance Standard C

• Developed specifically for using LC coupled with GC-FID to accurately determine hydrocarbons found in mineral oils, which can migrate from processing equipment and packaging into food.
• This 9-component mix contains noninterfering internal standards as well as both mineral oil saturated hydrocarbon (MOSH) and mineral oil aromatic hydrocarbon (MOAH) markers that are used to correctly cut LC fractions.

• Fully resolves 31 fragrance allergens with one analysis on an Rxi-17 column.
• Ideal for GC-MS analysis following IFRA methodology.
• Helps you meet EU requirements defined in the European Cosmetics Directive.
• All components included at 400 ppm to allow dilution for calibration curves and use with different solvents.
• Exceeds purity requirements outlined in IFRA method.
• This kit contains one ampul of each of the following cat.#s: 33100, 33101, 33102, 33103, 33104. (Components of the kit are not available for individual sale.)

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

Ideal for mycotoxin analyses in cannabis and food testing labs.

Ideal for mycotoxin analyses in cannabis and food testing labs.

Used to passivate your LC system before your first analysis if you:

(a) are analyzing phosphorylated compounds or other polar molecules known to chelate or interact with metal ions in your LC (e.g., glyphosate);

and also

(b) have stainless steel in your instrument flow path;

and/or also

(c) your LC column hardware is showing activity towards phosphorylated compounds or other polar molecules known to chelate.

• For accurate determination of trans fat content in foods and edible oils.
• Pair with an Rt-2560 GC column for reliable AOAC and AOCS method performance.
• Verified composition and stability.

• For accurate determination of trans fat content in foods and edible oils.
• Pair with an Rt-2560 GC column for reliable AOAC and AOCS method performance.
• Verified composition and stability.

• For accurate determination of trans fat content in foods and edible oils.
• Pair with an Rt-2560 GC column for reliable AOAC and AOCS method performance.
• Verified composition and stability.

• For accurate determination of trans fat content in foods and edible oils.
• Pair with an Rt-2560 GC column for reliable AOAC and AOCS method performance.
• Verified composition and stability.

• Appropriate for a wide range of retention index systems.
• Certified reference material (CRM) verified to be stable and accurate.
• Qualitatively analyzed to confirm composition; certificate available for each CRM lot.

• Detect and quantify USP <467> Class 2 residual solvents in pharmaceuticals.
• Reformulated to include cumene, added to USP <467> Class 2 list in August 2013.
• Quantitatively tested to confirm composition and stability; detailed support documentation provided.
• Restek is your complete supplier for world-class USP <467> residual solvent analysis: reference standards, Rxi-624Sil MS (G43) and Stabilwax (G16) GC columns, inlet liners, accessories, applications, and more.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

• European Food Safety Authority (EFSA) PAH4 compounds prepared in toluene solvent.
• High 1,000 µg/mL concentration—dilute as needed to economically prepare custom mixes.
• Low volatility—longer shelf life and more accurate results.
• High miscibility—compatible with QuEChERS solvents.
• Pair with Rxi-PAH GC column for easy separation of EFSA PAH4 compounds from common interferences in food and environmental samples.

• European Food Safety Authority (EFSA) PAH4 compounds prepared in toluene solvent.
• High 1,000 µg/mL concentration—dilute as needed to economically prepare custom mixes.
• Low volatility—longer shelf life and more accurate results.
• High miscibility—compatible with QuEChERS solvents.
• Pair with Rxi-PAH GC column for easy separation of EFSA PAH4 compounds from common interferences in food and environmental samples.

• Contains the seven hormones listed in EPA Method 539 at concentrations suited for Unregulated Contaminant Monitoring Rule 3 (UCMR3) screening.
• Ideal for the analysis of finished drinking water as outlined in UCMR3, which requires monitoring of all public drinking water systems with 10,000 or more customers.
• Also available: EPA 539 calibration stock standard with concentrations of 100–350 µg/mL to more conveniently match EPA requirements (cat.# 31998).

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

• Full 82-component EPA 524.3 list using as few as three ampuls—reduce prep time and chances for error or contamination.
• EPA 524.3 VOA MegaMix ampul includes oxygenates group—no need to order separately.
• Volatile gases prepared separately—replace shorter-life components without wasting money on full list.
• Two options for internal and surrogate standards—separate or combined mix.
• Also ideal for surface water and groundwater testing.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

Note: Methapyrilene is not included in this revised standard.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

• Use to verify the retention time for each compound normally included in a blood alcohol test, and to verify that the compounds are resolved from and do not interfere with one another.
• Includes 1-propanol internal standard.
• Intended for qualitative use only.

• Use to verify the retention time for each compound normally included in a blood alcohol test, and to verify that the compounds are resolved from and do not interfere with one another.
• Includes tert-butanol internal standard.
• Intended for qualitative use only.

• Contains the seven hormones listed in EPA Method 539 at the appropriate concentrations.
• Also available: UCMR3 Method 539 calibration standard with concentrations of 10–400 µg/mL to more conveniently match UCMR3 requirements (cat.# 32461).

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

Excluded from U.S. DEA Controlled Substances Act (CSA) regulatory controls—no customer permits or licensing required to purchase within the U.S.

Excluded from U.S. DEA Controlled Substances Act (CSA) regulatory controls—no customer permits or licensing required to purchase within the U.S.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

• Ready to use for generating test mixes, calibration standards, and spiking experiments.
• Reliable standards produced according to specifications defined in AOAC Official Method 2007.01.
• Cost-effective QuEChERS standards can be used without dilutions for greater lab efficiency.

• Ready to use for generating test mixes, calibration standards, and spiking experiments.
• Reliable standards produced according to specifications defined in AOAC Official Method 2007.01.
• Cost-effective QuEChERS standards can be used without dilutions for greater lab efficiency.

• Ready to use for generating test mixes, calibration standards, and spiking experiments.
• Reliable standards produced according to specifications defined in AOAC Official Method 2007.01.
• Cost-effective QuEChERS standards can be used without dilutions for greater lab efficiency.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

Excluded from U.S. DEA Controlled Substances Act (CSA) regulatory controls—no customer permits or licensing required to purchase within the U.S.

Excluded from U.S. DEA Controlled Substances Act (CSA) regulatory controls—no customer permits or licensing required to purchase within the U.S.

Note: Store standards under frozen conditions (–20 °C or colder). We recommend you store ampuls lying flat (horizontally) to prevent breakage. For best results, thaw the contents of the ampul fully and shake the ampul well before opening and using the solution.

• Replace active hydrogen, reducing polarity and making the compounds more volatile.
• Increase stability of derivatives.

• Add alkyl groups to functional hydrogens (H).
• Decrease polarity on compounds containing acidic hydrogens, i.e., phenols, carboxylic acids.
• Form an ester.

• Add alkyl groups to functional hydrogens (H).
• Decrease polarity on compounds containing acidic hydrogens, i.e., phenols, carboxylic acids.
• Form an ester.

• Most commonly used for electron capture detection.
• React with alcohols, amines, and phenols.
• Frequently used for drugs of abuse confirmation.

Stability is 12 months from date of manufacture: +/– 10% accuracy.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

• Toxaphene standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

• For GC analysis of total petroleum hydrocarbons (TPH) in water.
• Environmentally safer than previous methods.
• Calibration standard available as diesel #2/motor oil and diesel #2/mineral oil.

• For GC analysis of total petroleum hydrocarbons (TPH) in water.
• Calibration standard available as diesel #2/motor oil and diesel #2/mineral oil.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

U.S. DEA-exempted formulation—no additional customer permits or licensing are required to purchase within the U.S.

• For simple sugar analysis by LC with refractive index/light scattering detection.
• Use with a silica column with amino functionality, as recommended by AOAC International.
• Use as a calibration standard for AACC Method 80-04.
• Offered dry for enhanced stability.

• Performance evaluation for essential oils and fragrance chemicals.
• System suitability mixture for GC systems and analytical columns.
• Convenient 0.5 mL quantity for easy dilution to recommended working solution.

• External check of quality for laboratories performing food testing.
• Ensures accurate proficiency testing.

• External check of quality for laboratories performing food testing.
• Ensures accurate proficiency testing.

• For GC analysis of total petroleum hydrocarbons (TPH) in water.
• Environmentally safer than previous methods.
• Calibration standard available as diesel #2/motor oil and diesel #2/mineral oil.

• Updated reference materials for GC analysis of TPH in water.
• Determination of hydrocarbon oil index—applicable to drinking, surface, waste, and treated water.

• Meets CCME 2001 Petroleum Hydrocarbons in Soil Method—Tier 1.
• Primary reference calibration standards for quantification of four fractions.

• Meets CCME 2001 Petroleum Hydrocarbons in Soil Method—Tier 1.
• Primary reference calibration standards for quantification of four fractions.

There are four general types of mineral spirits, classified according to boiling point range (BPR):

• Type I (Stoddard solvent), BPR 149–182 °C
• Type II (high flash point), BPR 177–196 °C
• Type III (odorless), BPR 149–196 °C
• Type IV (low dry point), BPR 149–174 °C

This standard is manufactured using the Type 1 mineral spirit.

Note: Cat.#s 31260 and 31261 are produced with CAS# 64475-85-0, a Type 1 Mineral Spirit containing the proper ratio of n-alkanes (higher proportion) and isoparaffins/cycloalkanes (lower proportion). Lots produced prior to March 2017 contained CAS# 8030-30-6, a C10-C13 isoparaffins odorless Mineral Spirit with >98% isoparaffins (branched alkanes/aromatics) and minimal n-alkanes.

There are four general types of mineral spirits, classified according to boiling point range (BPR):

• Type I (Stoddard solvent), BPR 149–182 °C
• Type II (high flash point), BPR 177–196 °C
• Type III (odorless), BPR 149–196 °C
• Type IV (low dry point), BPR 149–174 °C

This standard is manufactured using the Type 1 mineral spirit.

Note: Cat.#s 31260 and 31261 are produced with CAS# 64475-85-0, a Type 1 Mineral Spirit containing the proper ratio of n-alkanes (higher proportion) and isoparaffins/cycloalkanes (lower proportion). Lots produced prior to March 2017 contained CAS# 8030-30-6, a C10-C13 isoparaffins odorless Mineral Spirit with >98% isoparaffins (branched alkanes/aromatics) and minimal n-alkanes.

• For current Massachusetts VPH method: surrogate included.
• Matrix spike mix at 50µg/mL, per updated method.

• Standard for current Massachusetts VPH method: surrogate included.
• More analyses per ampul—standard with surrogate is 10,000µg/mL.

• Confirm unleaded gasoline TPH, BTEX, and aromatics in a single analysis.
• Certificate of Analysis includes concentration of TPH, and certified concentrations of BTEX and individual aromatics.
• Complete data pack available.

• For total petroleum hydrocarbon pattern recognition of hydraulic oil.
• High concentration—50,000 µg/mL in methylene chloride.

Creosote oil is a coal tar derived distillate.

For total petroleum hydrocarbon pattern recognition of creosote oil.

High concentration—50,000 µg/mL in methylene chloride.

• Prepared from an equal-volume blend from five gasoline-powered vehicles (belonging to Restek employees). After blending, a precisely weighed amount of the composite is added to a volumetric flask to produce the standard.
• Motor oil standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Prepared from an equal-volume blend of 5W30, 10W30, 10W40, and 20W50 motor oils. After blending, a precisely weighed amount of the composite is added to a volumetric flask to produce the standard.
• Motor oil standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Kerosene composite standards are comprised of three separate sources blended in equal portions.
• Kerosene standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Diesel Fuel composite standards are comprised of three separate sources blended in equal portions.
• Diesel Fuel standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Unleaded gasoline composite standards are comprised of three separate sources each of 87, 89, and 93 octane blended in equal portions.
• Gasoline standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Easily determine the retention time window for each boiling point range.
• Prepared in n-pentane according to EPA requirements.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• High concentration.
• Acetonitrile solvent—suitable for HPLC analyses.

• Convenient 15µg/mL concentration, similar to the concentration of interest in most ambient air work.
• Fast analysis — Ultra C18 HPLC column separates 15 aldehydes/ketones in 16 minutes.

• Convenient 15µg/mL concentration, similar to the concentration of interest in most ambient air work.
• Fast analysis — Ultra C18 HPLC column separates 15 aldehydes/ketones in 16 minutes.

• Highest concentrations commercially available.
• Reduces laboratory cost per sample extract.

• Highest concentrations commercially available.
• Reduces laboratory cost per sample extract.

• Highest concentrations commercially available.
• Reduces laboratory cost per sample extract.

• Highest concentrations commercially available.
• Convenient 1 mL, 5 mL, and 10 mL package sizes.
• Reduces laboratory cost per sample extract.

• Highest concentrations commercially available.
• Convenient 1 mL, 5 mL, and 10 mL package sizes.
• Reduces laboratory cost per sample extract.

• High purity for consistent results.
• Free quality assurance data package available online.
• Highest concentrations commercially available.
• Convenient 1 mL, 5 mL, and 10 mL package sizes reduce cost per sample extract.

• High purity for consistent results.
• Free quality assurance data package available online.
• Highest concentrations commercially available.
• Convenient 1 mL, 5 mL, and 10 mL package sizes reduce cost per sample extract.

• High purity for consistent results.
• Free quality assurance data package available online.
• Highest concentrations commercially available.

• High purity for consistent results.
• Free quality assurance data package available online.
• Highest concentrations commercially available.

• Includes methyl acetate and n-amyl acetate.
• Contains 7 acetates.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• MegaMix mixture includes all target compounds not in our current products.
• Incorporates all phenols, for fast preparation and calibration.
• Incorporates "additional" extractable Method 625 compounds.

• Aroclor, toxaphene, and chlordane standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

Note: Store standards under frozen conditions (–20 °C or colder). We recommend you store ampuls lying flat (horizontally) to prevent breakage. For best results, thaw the contents of the ampul fully and shake the ampul well before opening and using the solution.

• Reference mix of the two most common odor-causing compounds.
• Convenient concentration for purge-and-trap analysis: 100 µg/mL in methanol.

• Reference mix of the two most common odor-causing compounds.
• Convenient concentration for purge-and-trap analysis: 100 µg/mL in methanol.

• Meet Stage 1 requirements for US EPA Methods 552, 552.1 and 552.2.
• Meet requirements for Stage 2 DBPR.
• Prepared from purified neat reference materials for the highest quality.
• Lot-to-lot consistency ensures analytical reproducibility.

• Meet Stage 1 requirements for US EPA Methods 552, 552.1 and 552.2.
• Meet requirements for Stage 2 DBPR.
• Prepared from purified neat reference materials for the highest quality.
• Lot-to-lot consistency ensures analytical reproducibility.

• Meet Stage 1 requirements for US EPA Methods 552, 552.1 and 552.2.
• Meet requirements for Stage 2 DBPR.
• Prepared from purified neat reference materials for the highest quality.
• Lot-to-lot consistency ensures analytical reproducibility.

• Complete set of materials for N-methylcarbamoyloximes and N-methylcarbamates.
• New mix satisfies latest update of EPA Method 531.2.
• Formulated in acetonitrile for stability and convenience for LC analysis.

• Complete set of materials for N-methylcarbamoyloximes and N-methylcarbamates.
• New mix satisfies latest update of EPA Method 531.2.
• Formulated in acetonitrile for stability and convenience for LC analysis.

• Reference materials for U.S. EPA Method 528.
• Fortification solution formulated based on MS sensitivity to each analyte.

• Reference materials for U.S. EPA Method 528.
• Fortification solution formulated based on MS sensitivity to each analyte.

• Separate mixes for surrogates and internal standard.
• Fortification solution combines surrogates and internal standard.
• Calibration mixes and all other quality control mixes also available.

• Designed for daily assessment of system performance.
• Reveals active sites in the injection port and/or GC column.
• Prepared in MTBE—low expansion volume helps minimize backflash.

• Designed for daily assessment of system performance.
• Reveals active sites in the injection port and/or GC column.
• Prepared in MTBE—low expansion volume helps minimize backflash.

• Efficiently controls foam; effective over a wide pH range.
• No hazardous materials, no components that are target analytes.
• Effective at less than 0.1% of sample volume.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #12: oils of mid-range to long chain lengths (C13 - C21)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #9: oils of mid-range to long chain lengths (C16 - C20)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #8: oils of short to mid-range chain lengths (C11 - C15)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #7: oils of short chain lengths (C6 - C10)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #6: oils of long chain lengths (C20 - C21)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #5: oils of mid-range to long chain lengths (C16 - C24)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #4: oils of mid-range to long chain lengths (C16 - C24)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #3: oils of short to mid-range chain lengths (C8 - C16)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #2: oils of short to mid-range chain lengths (C6 - C14)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #1: oils of mid-range chain lengths (C16 - C18)

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #15: peanut oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #14: cocoa butter

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #13: mustard seed oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #21: lard, beef or mutton tallow, and palm oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #20: coconut, palm kernel, babassu, and ouri-curi oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #19: olive, teaseed, and neatsfoot oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #18: peanut, rapeseed, and mustard seed oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #17: linseed, perilla, hempseed, and rubberseed oil

This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the following types of oils:

FAME #16: corn, poppy seed, cotton seed, soybean, walnut, safflower, sunflower, rice, bran, and sesame oil

We offer a wide range of Airgas (formerly Scott/Air Liquide gas) transportable gases, from pure gases for purging or calibrating to multicomponent mixes, which are ideal for peak identification work.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

We offer a wide range of Airgas (formerly Scott/Air Liquide gas) transportable gases, from pure gases for purging or calibrating to multicomponent mixes, which are ideal for peak identification work.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes with varying C5 unsaturates or extended C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes with varying C5 unsaturates or extended C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes with varying C5 unsaturates or extended C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes with varying C5 unsaturates or extended C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes with varying C5 unsaturates or extended C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes with varying C5 unsaturates or extended C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes, from lean to rich. Each has an extended list of C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes, from lean to rich. Each has an extended list of C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes, from lean to rich. Each has an extended list of C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes, from lean to rich. Each has an extended list of C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes, from lean to rich. Each has an extended list of C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Available in three mixes, from lean to rich. Each has an extended list of C6+ components.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.