delim
Environmental Solutions

Environmental Solutions

Rtx®-CLPesticides / Rtx®-CLPesticides 2 GC Columns

  • Analyze haloacetic acids in under 13 minutes.
  • Complete separation of all target HAAs; two elution order changes.
  • Excellent for other GC/ECD methods—fewer column changes means less downtime.

Ultra Carbamate Columns

particle size: 3µm or 5µm, spherical
pore size: 100Å
pH range: 2.5 to 8
temperature limit: 80°C

Restek chemists developed the Ultra Carbamate column specifically for carbamates analysis. The unique packing separates 10 target carbamates in just over 10 minutes. The column is compatible with fluorescence or LC/MS detection.* An Ultra Carbamate column can process as many as 3 to 4 samples per hour, versus less than 2 samples per hour on a general-purpose C18 column. In addition to increased sample throughput, this much faster analysis will significantly reduce solvent usage—and the costs of disposing of solvent waste.

Sample Prep Cartridges for Extraction & Clean-Up

  • Florisil®—validated for EPA 3620C pesticide cleanup.
  • CarboPrep®—optimized for pesticide extraction and cleanup.
  • Mass. EPH—low background for less interference.
  • Specialized charcoal—designed for EPA 521 & 522 extraction.

Air Canisters for VOC Monitoring

  • Variety of options available, including Summa can equivalent.
  • Exclusive manufacturer of 1L spherical canister.
  • Repair service available to extend canister life.

8270 Mixes

EPA 8270 internal, surrogate, & spike mixes.

EZ Twist Top™ Injection Port

Take a guided tour of the new EZ Twist Top™ Injection port, to learn how it simplifies maintenance, eliminates tangled gas lines, and makes changing liners a snap.

Narrated by Innovations Chemist Scott Grossman.

The Restek Leak Detector

Find out about the innovations in the newest revision of Restek's Electronic Leak Detector, narrated by one of the engineers involved in its creation.

Narrated by Instrument Innovations Engineer Brandon Tarr.

Technical Articles

Environmental

Large Volume Splitless Injection Using an Unmodified Split/Splitless Inlet and GC-TOFMS for Pesticides and Brominated Flame Retardants

Concurrent solvent recondensation large volume splitless injection (CSR-LVSI) GC/MS is used here for analyzing pesticides and brominated flame retardants in drinking water based on EPA Method 527. CSR-LVSI allows a time-consuming sample extract concentration step to be eliminated, but can also be used with extract concentration for lower detection limits.

Environmental

Analyze Haloacetic Acids in Under 13 Minutes with Rtx®-CLPesticides Columns

Sample throughput for haloacetic acids in drinking water can be increased significantly using Rtx®-CLPesticides/Rtx®-CLPesticides2 columns. Target HAAs were fully resolved in under 13 minutes.

Environmental

New Wool Ensures More Accurate Semivolatiles Analyses

New Semivolatiles Wool, pre-packed in Restek liners, is designed specifically for semivolatiles analysis and result in more accurate results at lower levels, compared to similar products.

Environmental

3-Fold Faster Polybrominated Diphenyl Ether (PBDE) Short Column Method

Sample throughput for PBDE analysis can be significantly increased using a 15m Rtx®-1614 column. Excellent responses and peak shapes are obtained for all congeners, including BDE-209, in just 20 minutes.

PDF Document

Gas Sampling Bags: Cost-Effective Alternatives for Air Monitoring

Gas sampling bags can be a cost-effective alternative to canisters and thermal desorption tubes for many air monitoring applications, including VOCs and permanent gases. This 4-page flyer provides general guidelines, product specifications, and recommended applications. (PDF - 202kB)

PDF Document

Analyze More Semivolatiles Samples Per Shift Using Split Injection

Semivolatiles are typically analyzed using splitless injection, but this approach results in slow analysis times and significant variability. In contrast, using split injection under the conditions established here allows faster sample throughput and increased repeatability. (PDF - 1556kB)

PDF Document

Restek Airmail, 2011 vol. 1

This 4-page newsletter includes an analysis of naphthalene along with TO-15 volatiles, as well as an innovative customer application for verifying sample port integrity during soil vapor intrusion monitoring. Also features air canisters and new air sampling products. (PDF - 337kB)

PDF Document

Improve Recoveries of Chlorinated Pesticides with CarboPrep® SPE Cleanup

Conserve solvent, ensure cleaner extracts, and obtain high recovery of target pesticides by using graphitized carbon-based CarboPrep® SPE tubes to prepare samples for chlorinated pesticides analysis. (PDF - 676kB)

PDF Document

Thermal Desorption Tubes: Versatile Air Sampling for a Wide Range of Applications

This flyer give an overview of TD sampling and describes many applications that can be sampled using this versatile technique. Includes a comparison of tube and canister sampling, to help you determine which VOC sampling technique is best for you. (PDF - 177kB)

PDF Document

Reduce Acetonitrile Dependence by Analyzing Polycyclic Aromatic Hydrocarbons with Methanol-Based Mobile Phase

Switching to a methanol-based mobile phase for polycyclic aromatic hydrocarbon analysis—using the method shown here—is an effective way to save money by reducing acetonitrile consumption. (PDF - 119kB)

PDF Document

Accurately Quantify PAHs Down to 5 pg On-Column

Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants, affecting air, water, and soil quality. Although naturally occurring, human impact has created a steady increase in environmental levels of PAHs and their byproducts. PAHs are typically formed through the incomplete combustion of organic materials, such as wood, coal, and oil, but are also used in manufacturing of some medicines, plastics, and pesticides. Many PAHs are known or suspected carcinogens. The United States Environmental Protection Agency currently lists and mandates testing of the 16 PAHs they deem most hazardous. (PDF - 226kB)