Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous Abstract"Kinetics of catalytic oxidation of benzene, n-hexane, and emission gas from a refinery oil/water separator over a chromium oxide catalyst"    Next AbstractCryogen free automated gas chromatography for the measurement of ambient volatile organic compounds »

J Chromatogr A


Title:Automated gas chromatography with cryogenic/sorbent trap for the measurement of volatile organic compounds in the atmosphere
Author(s):Wang JL; Chen SW; Chew C;
Address:"Department of Chemistry, National Central University, Chungli, Taiwan"
Journal Title:J Chromatogr A
Year:1999
Volume:863
Issue:2
Page Number:183 - 193
DOI: 10.1016/s0021-9673(99)00965-6
ISSN/ISBN:0021-9673 (Print) 0021-9673 (Linking)
Abstract:"An automated gas chromatographic system was constructed to easily adapt either the cryogenic trap or chemical sorbent trap for preconcentrating ambient levels of volatile organic compounds. Remarkable similarity in chromatograms from C3 to C10 was found between these two enrichment methods, except that the sorbent trap did not quantitatively trap the C2-hydrocarbons. In contrast to cryogenic trapping, the chromatographic conditions for more volatile compounds were substantially improved using the sorbent trap. Water interference on the porous-layer open tubular column was also better managed using the sorbent trap for the continuous analysis of humid room air. The similarity in peak profiles between the GC-flame ionization detection (FID) and a commercial GC-MS system, regardless of concentration levels, facilitated compound identification on the FID chromatograms based on a field mission involving analysis of 106 air samples"
Keywords:"Adsorption Air Pollutants/*analysis Autoanalysis Carbon Dioxide/analysis Carbon Tetrachloride/analysis Chromatography, Gas/*methods Gas Chromatography-Mass Spectrometry Humidity Volatilization;"
Notes:"MedlineWang, J L Chen, S W Chew, C eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 1999/12/11 J Chromatogr A. 1999 Nov 26; 863(2):183-93. doi: 10.1016/s0021-9673(99)00965-6"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 25-12-2024