The application of high speed gas chromatography by air analysis
Conference
·
OSTI ID:617641
- Varian Chromatography Systems, Walnut Creek, CA (United States)
The demand for frequent sampling (2 to 5 minutes) approaching a continuous mode has generated interest in high speed GC analysis. This paper describes an apparatus which produces a minimum injection bandwidth (10 to 50 msec) which provides the primary means of attaining good column efficiency while achieving High Speed GC Analysis. This FastGC inlet which is mounted on a Varian 3400 Gas Chromatograph is described and its operation is detailed from the cryofocussing of the sample onto a short Nickel tube to the 100,000{degrees}C/sec desorption to the 8 Meter {times} 0.32 mm capillary column. The applications described in the paper include the analysis of chlorinated hydrocarbons, polar organics, an ozone precursor standard (C2 to C13), and BTEX`s. Data regarding the recovery, response linearity, and retention time and area count precision are also reported. 5 refs., 11 figs.
- OSTI ID:
- 617641
- Report Number(s):
- CONF-9605175--
- Country of Publication:
- United States
- Language:
- English
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