Optimized Method for Determination 57 Volatile Organic Compounds in Nitrogen Using GC × GC-FID.

Publisher: Oxford University Press Country of Publication: United States NLM ID: 0173225 Publication Model: Print Cited Medium: Internet ISSN: 1945-239X (Electronic) Linking ISSN: 00219665 NLM ISO Abbreviation: J Chromatogr Sci Subsets: MEDLINE

Publication: <2012- > : Oxford : Oxford University Press
Original Publication: Niles Il : Preston Technical Abstracts

Volatile Organic Compounds*/analysis; Chromatography, Gas/methods ; Flame Ionization/methods ; Limit of Detection ; Nitrogen

The sample containing 57 volatile organic compounds (VOCs) in nitrogen at a nominal 1 ppmv was prepared in our lab using weighting method. A methodology for determination of the 57 VOCs using a two-dimensional gas chromatography equipped with Deans switches and two flame ionization detectors (GC × GC-FID) was developed and validated for resolution, asymmetry, sensitivity, precision (intra-day precision and inter-day precision), linearity, limit of detection (LOD), limit of quantification (LOQ) and accuracy. In this study, resolution, asymmetry and sensitivity of the analytical method were improved，intra-day precisions of all the compounds were <1% and inter-day precisions were between 0.9 and 3.0%. In addition, LOQ and LOD were in the range of 0.024-0.185 ppmv and 0.012-0.092 ppmv, respectively. An excellent linearity was obtained (R2 > 0.9995). At the meantime, the accuracy of the analytical method was evaluated by determining the concentration of a certified reference material.
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2016-16 Ministry of Ecology and Environment of the People's Republic of China

0 (Volatile Organic Compounds)
N762921K75 (Nitrogen)

Date Created: 20211023 Date Completed: 20221007 Latest Revision: 20221011

20231215

10.1093/chromsci/bmab118

34686870