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Comparison of spectrographic and ferrographic analysis of crankcase oils from the High Speed Train

โœ Scribed by G.R. Morley


Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
609 KB
Volume
14
Category
Article
ISSN
0301-679X

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This contribution describes GC/MS analysis of natural petroporphyrin extracts containing alkylporphyrins either as vanadyl complexes or as demetalated free bases. The combination of high temperature glass capillary gas chromatography with mass spectrometry allows, for the first time, direct determin