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Rxi-5Sil MS Columns (fused silica) low-polarity phase; Crossbond 1,4-bis(dimethylsiloxy)phenylene dimethyl polysiloxane Engineered to be a low-bleed GC-MS column. Excellent inertness for active compounds. General-purpose columns—ideal for GC-MS analysis of semivolatiles, polycyclic aromatic compounds, chlorinated hydrocarbons, phthalates, phenols, amines, organochlorine pesticides, organophosphorus pesticides, drugs, solvent impurities, and hydrocarbons. Temperature range: -60 °C to 350 °C. View Product Information
Rxi-5ms Columns (fused silica) low-polarity phase; Crossbond diphenyl dimethyl polysiloxane General-purpose columns for semivolatiles, phenols, amines, residual solvents, drugs of abuse, pesticides, PCB congeners (e.g., Aroclor mixes), solvent impurities. Most inert column on the market. Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better sensitivity and mass spectral integrity. Temperature range: -60 °C to 330/350 °C. Equivalent to USP G27 and G36 phases. View Product Information
Rxi-1ms Columns (fused silica) nonpolar phase; Crossbond dimethyl polysiloxane General-purpose columns for arson accelerants, essential oils, hydrocarbons, pesticides, PCB congeners (e.g., Aroclor mixes), sulfur compounds, amines, solvent impurities, simulated distillation, oxygenates, gasoline range organics (GRO), refinery gases. Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better sensitivity and mass spectral integrity. Temperature range: -60 °C to 330/350 °C. Equivalent to USP G1, G2, and G38 phases. View Product Information
Stabilwax Columns (fused silica) polar phase; Crossbond polyethylene glycol Low-bleed PEG column ensures long column lifetimes. Temperature range: 40 °C to 260 °C. Equivalent to USP G14, G15, G16, G20, and G39 phases. View Product Information
Rxi-624Sil MS Columns (fused silica) midpolarity Crossbond phase Low-bleed, high-thermal stability column—maximum temperatures up to 300–320 °C. Inert—excellent peak shape for a wide range of compounds. Selective—G43 phase highly selective for volatile organics and residual solvents, great choice for USP<467>. Manufactured for column-to-column reproducibility—well suited for validated methods. View Product Information
Rxi-17Sil MS Columns (fused silica) midpolarity Crossbond phase Excellent inertness and selectivity for active environmental compounds, such as PAHs. Low bleed for use with sensitive detectors, such as MS. 340/360 °C upper temperature limits. Equivalent to USP phase G3. View Product Information
Rt-2560 Column (fused silica) highly polar phase; biscyanopropyl polysiloxane—not bonded Stationary phase selectivity optimized for isomer separation to ensure accurate quantification of critical cis/trans FAMEs. Application-specific QC test guarantees consistent, reliable performance for AOAC 996.06 and AOCS Ce 1j-07 methods. Excellent sample capacity; no peak distortion means easy, accurate peak integration. Temperature range: 20–250 °C. View Product Information
Rtx-DHA Columns (fused silica) Crossbond 100% dimethyl polysiloxane—optimized for hydrocarbon analysis Columns meet or exceed all ASTM D6730-01 and CAN/CGSB 3.0 No. 14.3-99 method guidelines; test report for method D6730 supplied with each column. Excellent responses and peak symmetry for polar oxygenates. Stable to 340 °C. View Product Information
Rtx-Biodiesel TG Columns (fused silica) Linearity for all reference compounds exceeds method requirements. Columns with retention gaps feature Alumaseal connectors to prevent leaks and extend column life. Low column bleed at high temperatures. For glycerin and glycerides analysis, according to ASTM D6584 and EN 14105 methods. Stable to 350 °C. View Product Information
Stabilwax-DA Columns (fused silica) polar phase; Crossbond acid-deactivated Carbowax polyethylene glycol—for acidic compounds Application-specific columns for free (underivatized) acids, some inorganic acids. Resistant to oxidative damage. Equivalent to USP G25, G35 phases. Ideal for analyzing distilled liquor and other alcoholic beverages. View Product Information
Stabilwax-DB Columns (fused silica) polar phase; Crossbond base-deactivated Carbowax polyethylene glycol—for amines and basic compounds Application-specific columns for underivatized amines and other basic compounds, including alkylamines, diamines, triamines, nitrogen-containing heterocyclics. No need for column priming. Temperature range: 40 °C to 220 °C. View Product Information
Rxi Guard/Retention Gap Columns (fused silica) Extend column lifetime. Excellent inertness—obtain lower detection limits for active compounds. Sharper chromatographic peaks by utilizing retention gap technology. Maximum temperature: 360 °C. View Product Information
Rtx-BAC Plus 1 Columns (fused silica) Optimized column selectivities guarantee resolution of ethanol, internal standards, and frequently encountered interferences. Robust and reproducible column chemistry ensures longer column lifetime and consistent results. Stable to 260 °C. View Product Information
Rtx-BAC Plus 2 Columns (fused silica) Optimized column selectivities guarantee resolution of ethanol, internal standards, and frequently encountered interferences. Robust and reproducible column chemistry ensures longer column lifetime and consistent results. Stable to 260 °C. View Product Information
Innovative Integra-Guard Columns Get the protection without the connection! These innovative columns incorporate both guard column and analytical column in a continuous length of tubing, eliminating the connection and all connection-associated problems! The guard column section is marked separately from the analytical column, using high-temperature string. A wide variety of our Integra-Guard capillary columns are available. View Product Information
Rxi-PAH Columns (fused silica) midpolarity proprietary phase Ideal for EFSA PAH4 analysis—separates all priority compounds: benz[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo[a]pyrene. Best resolution of chrysene from interfering PAHs, triphenylene, and cyclopenta[cd]pyrene. Complete separation of benzo [b], [k], [ j], and [a] fluoranthenes. 360 °C thermal stability allows analysis of low-volatility dibenzo pyrenes. View Product Information
Rxi-5HT Columns (fused silica) low-polarity phase; diphenyl dimethyl polysiloxane Columns processed for high-temperature applications, such as mineral oil. Temperature range: -60 to 400 °C. View Product Information
Rxi-35Sil MS Columns (fused silica) midpolarity Crossbond phase Special selectivity and excellent inertness for substituted polar compounds, such as drugs, pesticides, herbicides, PCBs, phenols, etc. Provides superior separation for cannabinoids. Very low-bleed phase for GC-MS analysis. Extended temperature range: 50 °C up to 360 °C. View Product Information
Rxi-1301Sil MS Columns (fused silica) midpolarity Crossbond phase Highest thermal stability in the industry ensures dependable, accurate MS results and increased uptime. Stabilized cyano phase selectivity improves the performance of existing methods. Ideal for solvents, glycols, and other polar compounds. Rigorous QC testing ensures inertness and accurate, reliable data for multiple compound classes. Maximum temperature: 320 °C. View Product Information
Stabilwax-MS Columns (fused silica) High-polarity, stable polyethylene glycol (PEG) stationary phase. Low bleed and rugged enough to withstand repeated temperature cycles without retention time shifting. Ideal for food, flavor, fragrance, and industrial chemical and solvent analysis. Temperature range: 40 °C to 250/260 °C. Equivalent to USP G14, G15, G16, G20, and G39 phases. View Product Information
GCxGC Selectivity Kit, 0.25 mm Wide range of stationary phases offers orthogonal separations. High thermal stability increases system ruggedness. Unrivaled column inertness for accurate analysis of active compounds. 0.15, 0.18, or 0.25 mm ID formats accommodate varying sample capacities, speeds, and detectors. Secondary columns come in convenient 2 m lengths for economical methods development. View Product Information
GCxGC Selectivity Kit, 0.18 mm Wide range of stationary phases offers orthogonal separations. High thermal stability increases system ruggedness. Unrivaled column inertness for accurate analysis of active compounds. 0.15, 0.18, or 0.25 mm ID formats accommodate varying sample capacities, speeds, and detectors. Secondary columns come in convenient 2 m lengths for economical methods development. View Product Information
GCxGC Selectivity Kit, 0.15 mm Wide range of stationary phases offers orthogonal separations. High thermal stability increases system ruggedness. Unrivaled column inertness for accurate analysis of active compounds. 0.15, 0.18, or 0.25 mm ID formats accommodate varying sample capacities, speeds, and detectors. Secondary columns come in convenient 2 m lengths for economical methods development. View Product Information
Rxi-1HT Columns (fused silica) nonpolar phase; dimethyl polysiloxane Columns processed for high-temperature applications, such as high molecular weight hydrocarbons. Temperature range: -60 to 400 °C. View Product Information
Rtx-5 DHA Tuning Column (fused silica) Crossbond 5% diphenyl/95% dimethyl polysiloxane—optimized for hydrocarbon analysis
Rtx-1614 Columns (fused silica) 5% diphenyl, 95% dimethyl polysiloxane Optimized for PBDE analysis by EPA Method 1614. Short column option resolves BDE-209 3 times faster, with less thermal breakdown. Unique deactivation gives higher BDE-209 response than competitor columns, for greater analytical sensitivity. Exceeds EPA Method 1614 resolution criteria for BDE-49 and BDE-71. Stable to 360 °C. View Product Information
Rxi-XLB Columns (fused silica) low-polarity proprietary phase General-purpose columns exhibiting extremely low bleed. Ideal for many GC-MS applications, including pesticides, PCB congeners (e.g., Aroclor mixes), PAHs. Unique selectivity. Temperature range: 30 °C to 360 °C. View Product Information
Rtx-CLPesticides Column Kit, 0.32 mm ID proprietary Crossbond phases Application-specific columns for organochlorine pesticides and herbicides. Low bleed—ideal for high sensitivity GC-ECD or GC-MS analyses. Baseline separations in less than 10 minutes. Note: Columns are not preconnected in this kit. View Product Information
Rxi-17 Columns (fused silica) midpolarity phase; Crossbond diphenyl dimethyl polysiloxane General-purpose columns for pesticides, herbicides, rosin acids, phthalate esters, triglycerides, sterols. Temperature range: 40 °C to 320 °C. View Product Information
Rtx-PCB Columns (fused silica) proprietary Crossbond phase Unique polymer for PCBs analysis by GC-ECD or GC-MS. Good results for other semivolatiles. Low polarity; inert to active compounds. Stable to 340 °C. View Product Information
Rtx-Dioxin2 Columns (fused silica) proprietary Crossbond phase Isomer specificity for 2,3,7,8-TCDD and 2,3,7,8-TCDF achieved with one GC column. Thermally stable to 340 °C for longer lifetime. Unique selectivity for toxic dioxin and furan congeners allows use as a confirmation GC column. View Product Information
Rtx-OPPesticides2 Columns (fused silica) proprietary Crossbond phase Application-specific columns for organophosphorus pesticides; best column combination for U.S. EPA Method 8141. Low bleed—ideal for GC-FPD, GC-NPD, or GC-MS analyses. Stable to 330 °C. View Product Information
Rtx-CLPesticides Column Kit, 0.25 mm ID proprietary Crossbond phases Application-specific columns for organochlorine pesticides and herbicides. Low bleed—ideal for high sensitivity GC-ECD or GC-MS analyses. Baseline separations in less than 10 minutes. Note: Columns are not preconnected in this kit. View Product Information
Rtx-CLPesticides Column Kit, 0.53 mm ID proprietary Crossbond phases Application-specific columns for organochlorine pesticides and herbicides. Low bleed—ideal for high sensitivity GC-ECD or GC-MS analyses. Baseline separations in less than 10 minutes. Note: Columns are not preconnected in this kit. View Product Information
Rtx-VMS Columns (fused silica) proprietary Crossbond phase Application-specific columns for analyzing volatile organic pollutants by GC-MS including Methods TO-15, TMS, and EPA 8260. Complete separation of U.S. EPA Method 8260 compounds in less than 10 minutes. Stable to 260 °C. No known equivalent phases. View Product Information
Rtx-CLPesticides2 Columns (fused silica) proprietary Crossbond phase Application-specific columns for organochlorine pesticides and herbicides. Low bleed—ideal for high sensitivity GC-ECD or GC-MS analyses. Baseline separations in less than 10 minutes. Stable to 320–340 °C. Analyze EPA Method 8081B, 8082A, 8151A, 504.1, 515, 508.1, and 552.2 compounds without time-consuming column changes. View Product Information
Rtx-CLPesticides Columns (fused silica) proprietary Crossbond phase Application-specific columns for organochlorine pesticides and herbicides. Low bleed—ideal for high sensitivity GC-ECD or GC-MS analyses. Baseline separations in less than 10 minutes. Stable to 320–340 °C. Analyze EPA Method 8081B, 8082A, 8151A, 504.1, 515, 508.1, and 552.2 compounds without time-consuming column changes. View Product Information
FAMEWAX Columns (USP G16) (fused silica) polar phase; Crossbond polyethylene glycol Application-specific columns for FAMEs, specially tested with a FAME mixture. Temperature range: 20 °C to 250 °C. View Product Information
Rt-CW20M F&F Columns (fused silica) polar phase; Carbowax polyethylene glycol—not bonded Application-specific columns for flavor and fragrance compounds, specially tested. True nonbonded Carbowax 20M polarity. Temperature range: 60 °C to 250 °C. View Product Information
Rtx-65TG Columns (fused silica) high-polarity phase; Crossbond diphenyl dimethyl polysiloxane Application-specific columns, specially tested for triglycerides. Stable to 370 °C. View Product Information
Rt-TCEP Columns (fused silica) highly polar phase; 1,2,3-tris[2-cyanoethoxy]propane—not bonded General-purpose columns, ideal for aromatics and oxygenates in gasoline. Temperature range: 0 °C to 150 °C. View Product Information
Rtx-G43 Column (fused silica with 5-meter Integra-Guard guard column) Crossbond cyanopropylmethyl phenylmethyl polysiloxane Application-specific columns for residual solvents in pharmaceutical products. Meet all requirements of USP <467>. Analytical column with Integra-Guard guard column eliminates connecting problems and leaks. Rtx-G43 stable to 240 °C. View Product Information
Rtx-G27 Column (fused silica with 5-meter Integra-Guard guard column) Crossbond diphenyl dimethyl polysiloxane Application-specific columns for residual solvents in pharmaceutical products. Analytical column with Integra-Guard guard column eliminates connecting problems and leaks. Rtx-G27 stable to 290 °C. View Product Information
Rtx-5 (G27) Columns (fused silica) low-polarity phase; Crossbond diphenyl dimethyl polysiloxane General-purpose columns for drugs, solvent impurities, pesticides, hydrocarbons, PCB congeners (e.g., Aroclor mixes), essential oils, semivolatiles. Equivalent to USP G27 and G36 phases. View Product Information
Rtx-1 Columns (fused silica) nonpolar phase; Crossbond dimethyl polysiloxane General-purpose columns for solvent impurities, PCB congeners (e.g., Aroclor mixes), simulated distillation, arson accelerants, gases, natural gas odorants, sulfur compounds, essential oils, hydrocarbons, semivolatiles, pesticides, oxygenates. Long lifetime and very low bleed at high operating temperatures. Equivalent to USP G1, G2, G38 phases. View Product Information
Rxi-XLB Secondary Columns for GCxGC (fused silica) low polarity proprietary phase Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses. General purpose columns exhibiting extremely low bleed. Unique selectivity. Temperature range: 30 °C to 360 °C. View Product Information
Rtx-200 Secondary Columns for GCxGC (fused silica) midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses. General purpose column. Temperature range: -20 °C to 340 °C. View Product Information
Stabilwax Secondary Columns for GCxGC (fused silica) polar phase; Crossbond polyethylene glycol Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses. Low-bleed polyethylene glycol (PEG) phase. Temperature range: 40 °C to 260 °C. View Product Information
Rxi-1ms Secondary Columns for GCxGC (fused silica) nonpolar phase; Crossbond dimethyl polysiloxane Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses. General purpose columns. Temperature range: -60 °C to 330/350 °C (bleed tested temperature/maximum operating temperature). View Product Information
Rxi-5Sil MS Secondary Columns for GCxGC (fused silica) low-polarity phase; Crossbond 1,4-bis(dimethylsiloxy)phenylene dimethyl polysiloxane Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses. Engineered to be a low bleed GC/MS column. Excellent inertness for active compounds. General purpose columns. Temperature range: -60 °C to 350 °C. View Product Information
Rxi-17Sil MS Secondary Columns for GCxGC (fused silica) midpolarity Crossbond phase Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses. 340/360 °C upper temperature limits. Excellent inertness and selectivity for active environmental compounds, such as PAHs. Low-bleed for use with sensitive detectors, such as MS. View Product Information
Rtx-Volatile Amine Columns (fused silica) Unique selectivity for baseline resolution of all volatile amines. Excellent inertness assures accuracy and sensitivity for volatile amines, including free ammonia. Highly robust phase withstands repeated water injections, resulting in longer column lifetime. High temperature stability (290 °C) ensures elution of amines up to C16 and allows contaminants to be removed by “baking out” the column. View Product Information
Rtx-Mineral Oil Columns (fused silica) Application specific columns meet DIN EN ISO 9377-2:2000 requirements. Optimized column dimensions for fast mineral oil screening. Surface linked phase guarantees long lifetime, robustness, and stability to 400 °C. View Product Information
Rtx-440 Columns (fused silica) midpolarity proprietary Crossbond phase General-purpose columns with unique selectivity for pesticides, PAHs, or other semivolatiles. Ideal for low/trace-level analyses. Low-bleed, high-resolution columns with unique selectivity. Wide temperature range: 20 °C to 340 °C. View Product Information
Rtx-35 Amine Columns (fused silica) midpolarity phase; Crossbond 35% diphenyl/65% dimethyl polysiloxane Application-specific columns for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics. View Product Information
Rtx-624 Columns (fused silica) low- to midpolarity phase Application-specific columns for volatile organic pollutants. Recommended in U.S. EPA methods for volatile organic pollutants. Temperature range: -20 °C to 240 °C. Equivalent to USP G43 phase. View Product Information
Rtx-502.2 Columns (fused silica) proprietary Crossbond diphenyl/dimethyl polysiloxane phase Application-specific columns with unique selectivity for volatile organic pollutants. The Rtx-502.2 column is cited in U.S. EPA Method 502.2 and in many gasoline range organics (GRO) methods for monitoring underground storage tanks. Excellent separation of trihalomethanes; ideal polarity for light hydrocarbons and aromatics. Stable to 270 °C. View Product Information
Rtx-VRX Columns (fused silica) proprietary Crossbond phase Application-specific columns for volatile organic pollutants. Excellent for U.S. EPA Method 8021 compounds. Stable to 260 °C. View Product Information
Rtx-OPPesticides Columns (fused silica) proprietary Crossbond phase Application-specific columns for organophosphorus pesticides; best column combination for U.S. EPA Method 8141. Low bleed—ideal for GC-FPD, GC-NPD, or GC-MS analyses. Stable to 330–340 °C. View Product Information
Rtx-2330 Columns (fused silica) highly polar phase; biscyanopropyl cyanopropylphenyl polysiloxane General-purpose columns for cis/trans FAMEs, dioxin isomers. Temperature range: 0 °C to 275 °C. Equivalent to USP G8 and G48 phase. View Product Information
Rtx-Wax Columns (fused silica) polar phase; Crossbond polyethylene glycol Best polyethylene glycol (PEG) phase for alkenols, glycols, and aldehydes. Temperature range: 20 °C to 250 °C. Equivalent to USP G14, G15, G16, G20, G39 phases. View Product Information
Rtx-225 Columns (fused silica) polar phase; Crossbond cyanopropylmethyl phenylmethyl polysiloxane General-purpose columns for FAMEs, carbohydrates, sterols, flavor compounds. Equivalent to USP G7, G19 phases. View Product Information
Rtx-65 Columns (fused silica) mid- to high-polarity phase; Crossbond diphenyl dimethyl polysiloxane General-purpose columns for phenols, fatty acids, triglycerides. Temperature range: 50 °C to 300 °C. View Product Information
Rtx-200 Columns (fused silica) midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane General-purpose columns for solvents, Freon fluorocarbons, alcohols, ketones, silanes, glycols, and drugs of abuse. Excellent confirmation column with an Rtx-5 column for phenols, nitrosamines, organochlorine pesticides, chlorinated hydrocarbons, and chlorophenoxy herbicides. Equivalent to USP G6 phase. View Product Information
Rtx-50 Columns (fused silica) midpolarity phase; Crossbond phenyl methyl polysiloxane General-purpose columns for pesticides, herbicides, rosin acids, phthalate esters, sterols. Equivalent to USP G3 phase. View Product Information
Rtx-35 Columns (fused silica) midpolarity phase; Crossbond diphenyl dimethyl polysiloxane General-purpose columns for organochlorine pesticides, PCB congeners (e.g., Aroclor mixes), herbicides, pharmaceuticals, sterols, rosin acids, phthalate esters. Temperature range: 40 °C to 320 °C. Equivalent to USP G42 phase. View Product Information
Rtx-1701 Columns (fused silica) midpolarity Crossbond phase General-purpose columns for alcohols, oxygenates, PCB congeners (e.g., Aroclor mixes), pesticides, and fragrance compounds. Equivalent to USP G46 phase. View Product Information
Rtx-1301 (G43) Columns (fused silica) low- to midpolarity phase General-purpose columns for residual solvents, alcohols, oxygenates, and volatile organic compounds. Equivalent to USP G43 phase. View Product Information
Rtx-20 Columns (fused silica) low- to midpolarity phase; Crossbond diphenyl dimethyl polysiloxane General-purpose columns for volatile compounds, flavor compounds, alcoholic beverages. Temperature range: -20 °C to 320 °C. Equivalent to USP G28, G32 phases. View Product Information
Rtx-5 Amine Columns (fused silica) low-polarity phase; Crossbond 5% diphenyl/95% dimethyl polysiloxane Application-specific columns for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics. Stable to 315 °C. View Product Information
Intermediate-Polarity Deactivated Guard/Retention Gap Columns/Transfer Lines (fused silica) Tested with a comprehensive test mix to ensure high inertness. Useful for a wide range of applications. Use with most common solvents. Maximum temperature: 325 °C. View Product Information
Rt-γDEXsa Columns (fused silica) 2,3-di-acetoxy-6-O-tert-butyl dimethylsilyl gamma cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Larger organic molecules. Also useful for flavor compounds in fruit juices. View Product Information
Rt-βDEXcst Columns (fused silica) Proprietary cyclodextrin material added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Proprietary stationary phase, developed specifically for the fragrance industry. Also used for pharmaceutical applications. View Product Information
Rt-βDEXsa Columns (fused silica) 2,3-di-acetoxy-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Unique selectivity for esters, lactones, and other fruit flavor components. View Product Information
Rt-βDEXsp Columns (fused silica) 2,3-di-O-propyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Often useful in dual-column configurations, with the Rt-βDEXsm column, for complex enantiomeric separations. View Product Information
Rtx-Volatiles Columns (fused silica) proprietary Crossbond diphenyl/dimethyl polysiloxane phase Application-specific columns for volatile organic pollutants. Stable to 280 °C. View Product Information
Rtx-2887 Column (fused silica) nonpolar phase; Crossbond 100% dimethyl polysiloxane—for simulated distillation Application-specific column for simulated distillation. Stable to 360 °C. View Product Information
Rtx-200MS—Low-Bleed GC-MS Columns (fused silica) midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane General purpose columns for solvents, Freon fluorocarbons, alcohols, ketones, silanes, glycols. Excellent confirmation column with an Rtx-5 column for phenols, nitrosamines, organochlorine pesticides, chlorinated hydrocarbons, and chlorophenoxy herbicides. Equivalent to USP G6 phase. View Product Information
Rtx-5MS—Low-Bleed GC-MS Columns (fused silica) low-polarity phase; Crossbond diphenyl dimethyl polysiloxane General purpose columns for drugs, solvent impurities, pesticides, hydrocarbons, PCB congeners (e.g., Aroclor mixes), essential oils, semivolatiles. Column specifically tested for low-bleed performance. Temperature range: -60 °C to 350 °C. Equivalent to USP G27 and G36 phases. View Product Information
Rtx-BAC2 Columns (fused silica) proprietary Crossbond phase Application-specific columns for blood alcohol analysis—achieve baseline resolution in less than 3 minutes. Also excellent for abused inhalant anesthetics, γ-hydroxybutyrate (GHB)/γ-butyrolactone (GBL), glycols, and common industrial solvents. Rtx-BAC2 confirmation column provides four elution order changes under the same conditions. Stable to 260 °C. View Product Information
Rtx-BAC1 Columns (fused silica) proprietary Crossbond phase Application-specific columns for blood alcohol analysis—achieve baseline resolution in less than 3 minutes. Also excellent for abused inhalant anesthetics, γ-hydroxybutyrate (GHB)/γ-butyrolactone (GBL), glycols, and common industrial solvents. Rtx-BAC2 confirmation column provides four elution order changes under the same conditions. Stable to 260 °C. View Product Information
Siltek-Deactivated Guard/Retention Gap Columns/Transfer Lines (fused silica) Tested with a comprehensive test mix, to ensure high inertness. Revolutionary deactivation process for superior inertness. Analyze active samples accurately; ideal for chlorinated pesticide analysis (reduces endrin breakdown to less than 1%). Maximum temperature: 380 °C. View Product Information
Hydroguard Water-Resistant Guard/Retention Gap Columns/Transfer Lines (fused silica) Extend analytical column lifetime by preventing degradation from harsh “steam-cleaning” water injections. Tested with a comprehensive test mix, to ensure high inertness. Maximum temperature: 325 °C. View Product Information
Base-Deactivated Guard/Retention Gap Columns (fused silica) Tested with a basic amine test mix. Excellent inertness for basic compounds. Recommended for use with Rtx-5 Amine, Rtx-35 Amine, Rtx-Volatile Amine, and Stabilwax-DB capillary columns. Batch test chromatogram included. Maximum temperature: 315 °C. View Product Information
Polar-Deactivated Guard/Retention Gap Columns (fused silica) polar polyethylene glycol deactivation Tested with a comprehensive test mix to ensure high inertness. Polyethylene glycol deactivation layer provides optimum wettability for polar compounds. Minimize peak splitting when using polar solvents such as methanol or water. Compatible with Stabilwax, Rtx-225, and Rt-2330 capillary columns. Maximum temperature: 280 °C. View Product Information
Rt-βDEXse Columns (fused silica) 2,3-di-O-ethyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Similar in performance to Rt-βDEXsm but provides better resolution for limonene, linalool, linalyl acetate, ethyl-2-methylbutyrate, 2,3-butane diol, and styrene oxides. View Product Information
Rt-βDEXsm Columns (fused silica) 2,3-di-O-methyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Excellent column for most chiral compounds in essential oils. View Product Information
Rt-βDEXm Columns (fused silica) permethylated beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: General-purpose chiral phase with many published applications. View Product Information
Deactivated Fused Silica Tubing (Nonpolar) Useful as guard columns, transfer lines, or long retention gaps Inertness-tested with the Grob test mix includes test chromatogram. 5-meter banded sections mounted in a Restek cage. Maximum temperature: 325 °C. View Product Information
Fused Silica Tubing (Undeactivated, Untreated) Strength-tested. Inexpensive. Coiled in 7-inch diameters, banded in 5-meter sections, and mounted in a Restek cage. View Product Information
Stx-CLPesticides Column Kit proprietary Crossbond phases Application-specific columns for organochlorine pesticides and herbicides. Baseline separations in less than 10 minutes. Siltek surface deactivation enhances responses for endrin, DDT, methoxychlor. Stable to 330 °C. Note: Columns are not preconnected in this kit. View Product Information
Stx-CLPesticides Column Kit, 0.25mm ID proprietary Crossbond phases Application-specific columns for organochlorine pesticides and herbicides. Baseline separations in less than 10 minutes. Siltek surface deactivation enhances responses for endrin, DDT, methoxychlor. Stable to 330 °C. Note: Columns are not preconnected in this kit. View Product Information
Stx-CLPesticides2 Columns (fused silica with Siltek deactivation) proprietary Crossbond phase Application-specific columns for organochlorine pesticides and herbicides. Baseline separations in less than 10 minutes. Siltek surface deactivation enhances responses for endrin, DDT, methoxychlor. Stable to 330 °C. View Product Information
Stx-CLPesticides Columns (fused silica with Siltek deactivation) proprietary Crossbond phase Application-specific columns for organochlorine pesticides and herbicides. Baseline separations in less than 10 minutes. Siltek surface deactivation enhances responses for endrin, DDT, methoxychlor. Stable to 330 °C. View Product Information

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low-polarity phase; Crossbond 1,4-bis(dimethylsiloxy)phenylene dimethyl polysiloxane

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highly polar phase; biscyanopropyl polysiloxane—not bonded

Crossbond 100% dimethyl polysiloxane—optimized for hydrocarbon analysis

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midpolarity phase; Crossbond 35% diphenyl/65% dimethyl polysiloxane

low- to midpolarity phase

proprietary Crossbond diphenyl/dimethyl polysiloxane phase

proprietary Crossbond phase

proprietary Crossbond phase

highly polar phase; biscyanopropyl cyanopropylphenyl polysiloxane

polar phase; Crossbond polyethylene glycol

polar phase; Crossbond cyanopropylmethyl phenylmethyl polysiloxane

mid- to high-polarity phase; Crossbond diphenyl dimethyl polysiloxane

midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane

midpolarity phase; Crossbond phenyl methyl polysiloxane

midpolarity phase; Crossbond diphenyl dimethyl polysiloxane

midpolarity Crossbond phase

low- to midpolarity phase

low- to midpolarity phase; Crossbond diphenyl dimethyl polysiloxane

low-polarity phase; Crossbond 5% diphenyl/95% dimethyl polysiloxane

2,3-di-acetoxy-6-O-tert-butyl dimethylsilyl gamma cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane

Proprietary cyclodextrin material added into 14% cyanopropylphenyl/86% dimethyl polysiloxane

2,3-di-acetoxy-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane

2,3-di-O-propyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane

proprietary Crossbond diphenyl/dimethyl polysiloxane phase

nonpolar phase; Crossbond 100% dimethyl polysiloxane—for simulated distillation

midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane

low-polarity phase; Crossbond diphenyl dimethyl polysiloxane