Measurement of Aerosol Organic Compounds Using a Novel Collection/Thermal-Desorption PTR-ITMS Instrument
作者： Troy Thornberry , Daniel M. Murphy , David S. Thomson , Joost de Gouw , Carsten Warneke
DOI: 10.1080/02786820902763132
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摘要: We report the development and characterization of a proton-transfer-reaction ion trap mass spectrometer for speciated measurement organic compounds in atmospheric aerosols show results from its first field deployment. The instrument uses an aerosol collection inlet to accumulate followed by rapid thermal desorption volatilize situ analysis. have performed laboratory studies characterize performance was deployed aboard NOAA research vessel during Texas Air Quality Study 2006/Gulf Mexico Atmospheric Composition Climate (TexAQS 2006/GoMACCS) August–September 2006. laboratory-determined detection limit glutaric acid mixed acid/NH 4 HSO test 0.22 ng collected mass, which corresponds estimated 12 m−3 10 min sample based on flow rate 1.8 L min−1. During TexAQS 2006/GoMACCS, signals well above l...
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