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Identification and Differentiation of Isomeric Methylated Derivatives of Oxygenation Products of Polycyclic Aromatic Hydrocarbons by Gas Chromatography - Mass Spectrometry

 

作者: JayantiR. Patel,   S.Wayne Mascarella,   GaryW. Griffin,   JohnL. Laseter,  

 

期刊: Analytical Letters  （Taylor Available online 1979）
卷期: Volume 12, issue 11  

页码: 1179-1188

 

ISSN:0003-2719

 

年代: 1979

 

DOI:10.1080/00032717908067908

 

出版商: Taylor & Francis Group

 

关键词: Oxidation of Polycyclic Aromatic Hydrocarbons (PAH′s);Pyrene;4-carboxyaldehydephenanthrene-5-carboxylic acid;acid-aldehyde lactol tautomer-ism;isomeric methylated derivatives;mass spec-trometric differentiation;glass capillary column gas chromatogr

 

数据来源: Taylor

 

摘要:

An isomeric pair of compounds is obtained from 4-car-boxyaldehydephenanthrene-5-carboxylic acid (1) by various methods routinely applied for the methylation of acidic oxygenation products of K-region polycyclic aromatic hydrocarbons (PAH's) prior to GC and GC/MS analysis. Differentiation of the individual cyclic and acyclic isomers, a classical general problem, proves possible by careful analysis of the mass spectral fragmentation patterns in the representative case studied here.

 

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