Gas chromatographic-mass spectrometric separation, identification and determination of C6-C12 cyclic imides in thermally treated epoxy and alkyd resins to locate hot spots inside large electricity generators

A simple and rapid GC-MS method for separation, identification and quantitative determination of long-chain cyclic imides in the 300 degrees C thermally treated epoxy and alkyd resins has been developed. The method provides a positive means of identifying C6-C12 cyclic imide derivatives by GC-MS and...

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Bibliographic Details
Published in:Journal of Chromatography A 1999-11, Vol.862 (1), p.17-27
Main Authors: HUSAIN, S, ALVI, S. N, NAGESWARA RAO, R
Format: Article
Language:English
Subjects:
A.c. Machines
Applied sciences
Cyclization
Electrical engineering. Electrical power engineering
Electrical machines
Electricity
Exact sciences and technology
Gas Chromatography-Mass Spectrometry - methods
Hot Temperature
Imides - analysis
Imides - isolation & purification
Power Plants
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Summary:A simple and rapid GC-MS method for separation, identification and quantitative determination of long-chain cyclic imides in the 300 degrees C thermally treated epoxy and alkyd resins has been developed. The method provides a positive means of identifying C6-C12 cyclic imide derivatives by GC-MS and enables the specific area of overheating to be identified, thereby averting catastrophic failures of power generators in service.
ISSN:0021-9673
DOI:10.1016/S0021-9673(99)00866-3