Journal article
Response of the nitrogen mode of the thermionic ionization detector to substituted nitrobenzenes
Journal of chromatography, Vol.387(C), pp.171-186
1987
DOI: 10.1016/S0021-9673(01)94522-4
Abstract
The response of the nitrogen mode of the thermionic ionization detector to a large number of substituted nitrobenzenes has been studied. The effects of detector temperature, emitter heating current, bias voltage, and changes in the detector gas on the responses of 36 compounds is reported. An attempt is made to interpret these results in terms of three candidate models for the mechanism of the nitrogen mode of the thermionic ionization detector response. Of particular importance in this study is a comparison of the observed responses with recently reported gas phase electron affinity values of the substituted nitrobenzenes. The results tend to support a mechanism in which the initiating step is thermal decomposition of the analyte molecule at the surface—gas interface, followed by electron transfer from the emitter surface to a gas phase species (probably nitrogen dioxide). For some molecules, a mechanism involving direct electron transfer to the intact parent molecule may also be operative.
Details
- Title: Subtitle
- Response of the nitrogen mode of the thermionic ionization detector to substituted nitrobenzenes
- Creators
- C. S Jones - Montana State UniversityE. P Grimsrud - Montana State University
- Resource Type
- Journal article
- Publication Details
- Journal of chromatography, Vol.387(C), pp.171-186
- Publisher
- Elsevier
- DOI
- 10.1016/S0021-9673(01)94522-4
- ISSN
- 0021-9673
- Number of pages
- 16
- Language
- English
- Date published
- 1987
- Academic Unit
- IIHR--Hydroscience and Engineering
- Record Identifier
- 9984752759002771
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