Improved detection limit of the proton-t
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A. Hansel; A. Jordan; C. Warneke; R. Holzinger; W. Lindinger
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Article
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1998
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John Wiley and Sons
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English
โ 324 KB
๐ 2 views
The sensitivity of our proton-transfer reaction mass spectrometer system has been improved by nearly two orders of magnitude, so that now on-line monitoring of volatile organic compounds at levels of a few pptv is possible. This has been demonstrated by means of calibration data down to 200 pptv and