Thermal desorption comprehensive two-dimensional gas chromatography for in-situ measurements of organic aerosols

被引：64

作者：

Goldstein, Allen H. ^{[1
]}

Worton, David R. ^{[1
]}

Williams, Brent J. ^{[1
]}

Hering, Susanne V. ^{[2
]}

Kreisberg, Nathan M. ^{[2
]}

Panic, Ognjen ^{[3
]}

Gorecki, Tadeusz ^{[3
]}

机构：

[1] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA

[2] Aerosol Dynam Inc, Albany, CA 94710 USA

[3] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

来源：

JOURNAL OF CHROMATOGRAPHY A | 2008年 / 1186卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

organic aerosol; mass spectrometry; two dimensional chromatography;

D O I：

10.1016/j.chroma.2007.09.094

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The complexity of organic composition and temporal variability of atmospheric aerosols presents an extreme analytical challenge. Comprehensive two-dimensional gas chromatography (GC x GC) has been used on time integrated filter samples to reveal the presence of thousands of individual organic compounds in aerosols, but without defining the temporal variability in composition ideal for providing information on source resolution and human exposure to specific pollutants. We hereby introduce a new instrument, 2D-TAG, which combines our in-situ thermal desorption aerosol GC (TAG) instrument with GC x GC allowing for dramatically improved separation of organics with automated measurements at hourly timescales. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：340 / 347

页数：8

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