𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of contamination on ion mobility detection after gas chromatography

✍ Scribed by Michael A. Baim; Herbert H. Hill Jr.

Book ID
104146772
Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
701 KB
Volume
299
Category
Article
ISSN
1873-3778

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✦ Synopsis

The ion mobility detector is a device that can be used for the selective, ultratrace detection of organic compounds after capillary gas chromatography. It is the only gas chromatographic detector which does not require heteroatomic compounds for selective response, yet concern is often expressed over its quantitative capabilities. Being a secondary ionization device, competitive charge transfer reactions from unseparated compounds or detector gas contamination may decrease the accuracy of measurement. This paper investigates the effects of both electronegative and electropositive contaminants on the detector's response. In general, it was found that contamination of the detector did affect response but no more severely than in conventional detectors such as the electron-capture detector or the flame ionization detector.

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