✦ LIBER ✦

Thermal effects on the mass spectra of benzophenone oximes obtained by gas chromatography/electron ionization mass spectrometry

✍ Scribed by Yee-Chung Ma; Burnaby Munson

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 547 KB
Volume: 26
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210261003

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✦ Synopsis

Benzophenone oxime and substituted benzophenone oximes can be pyrolyzed to the imines to a small extent in the heated transfer line from the gas chromatograph to the mass spectrometer source and to a large extent in the hot injection port of a gas chromatograph at high temperatures using the splitless mode of sample injection. The pyrolysis of tbe oximes to the imines appears to be largely a surface reaction and does not form the benzophenones as pyrolysis products. Decomposition of benzophenone oxime to beampbenone was produced by aootber reaction at the front of tbe chromatographic column. Thermal isomerizaton of benzophenone oxime to benzanilide was not observed under these conditions.

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