Description of the Analysis of a Wide Range of Volatile Organic Compounds in Whole Air Samples Collected during PEM-Tropics A and B

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• 作者：Jonah J. Colman ; Aaron L. Swanson ; Simone Meinardi ; Barkley C. Sive ; Donald R. Blake ; and F. Sherwood Rowland
• 刊名：Analytical Chemistry
• 出版年：2001
• 出版时间：August 1, 2001
• 年：2001
• 卷：73
• 期：15
• 页码：3723 - 3731
• 全文大小：103K
• 年卷期：v.73,no.15(August 1, 2001)
• ISSN：1520-6882

文摘

A large number of hydrocarbons, halocarbons, and organic nitrates were quantified in whole air samplesacquired for the NASA-sponsored GTE missions PEM-Tropics A and B. The samples were collected in electropolished stainless steel canisters from two aircraft whileflying over the Pacific Basin. Two nominally identicalmulticolumn multidetector gas chromatographic analyticalsystems were employed. Whole air samples were alsoused as working and calibrated standards and werecollected specifically for this purpose. This paper describes the analytical procedure employed during PEM-Tropics B. Minor differences in the PEM-Tropics A systemwill also be discussed. More than 3900 samples wereanalyzed for 34 gases during PEM-Tropics A, over 4500samples were analyzed for 58 gases during PEM-TropicsB. An overview is presented of the collection, analysis,and quantification of whole air samples during the PEM-Tropics missions, along with an analysis of the analyticalprecision achieved during these missions.