Journal
MASS SPECTROMETRY REVIEWS
Volume 26, Issue 2, Pages 166-184Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/mas.20118
Keywords
chemical ionization mass spectrometry; reactive nitrogen; atmospheric chemistry; trace gas measurement
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Chemical ionization mass spectrometry (CIMS) has proven to be a powerful method for sensitive, fast time response (t similar to 1 sec) measurements of various atmospheric compounds with limits of detection (LOD) of the order of tens of pptv and lower The rapid time response of CIMS is particularly well suited for airborne measurements and its application has largely grown out of airborne measurements in the stratosphere and upper troposphere. This work reviews some of the advances in CIMS technology that have occurred in the past decade. In particular, CIMS methods for selective measurement of reactive nitrogen species (e.g., HNO3, HO2NO2, PAN, and NH3) in the lower atmosphere (altitudes similar to 0-8 km) are described. In addition, recent developments in CIMS technology for the selective measurement of gas-phase hydroperoxides and aerosol chemical composition are briefly described. (c) 2007 Wiley Periodicals, Inc.
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