High-speed gas chromatography analysis of chlorinated pesticides using a tandem column ensemble and pulsed flow modulation

Franklin Lewis Dorman, Jr., Chris English, Gary Stidsen, Tincuta Veriotti, Richard D. Sacks

Research output: Contribution to conferencePaperpeer-review

Abstract

In order to meet customer needs, environmental laboratories are striving to improve their sample throughput for chlorinated pesticide analysis. This has resulted in a new focus area for gas chromatography (GC) called high-speed gas chromatography. Different areas of the GC have been investigated including inlet systems, microbore columns, high-speed temperature programming and column ensembles with adjustable selectivity. These techniques may result in a positive impact on laboratory turn around. Tunable selectivity is in its infancy and is showing significant reduction in analytical run times with excellent control of peak resolution. This technique of tunable selectivity is also known as stop-flow GC. This technique is one of the latest discoveries in high speed GC that significantly reduces analysis time. Stop-flow GC utilizes conventional fused silica columns and a pulsed flow carrier gas operation. This presentation will show the chromatographic conditions using stop-flow technology that has resulted in a 2-minute analysis time for the chlorinated pesticides found in USEPA SW-846 Method 8081.

Original languageEnglish (US)
Pages37-38
Number of pages2
StatePublished - Dec 1 2003
Event18th Annual Waste Testing and Quality Assurance Symposium, WTQA 2002 - Arlington, VA, United States
Duration: Aug 10 2002Aug 15 2002

Other

Other18th Annual Waste Testing and Quality Assurance Symposium, WTQA 2002
CountryUnited States
CityArlington, VA
Period8/10/028/15/02

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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