文章基本信息

标题：多環芳香族炭化水素類の試料保存時の安定性について
本地全文：下载
作者：小田淳子 ; 安原昭夫 ; 松永和義等
期刊名称：Journal of Health Science
印刷版ISSN：1344-9702
电子版ISSN：1347-5207
出版年度：1998
卷号：44
期号：5
页码：352-363
DOI：10.1248/jhs1956.44.352
出版社：The Pharmaceutical Society of Japan
摘要：The stability of 61 polycyclic aromatic hydrocarbons (PAHs) (27 nonpolar, 20 oxygenated, and 14 deuterated PAHs) in quartz fiber filters with or without airborne particulates, and acetonitrile during storage under different conditions was investigated using gas chromatography-mass spectrometry (GC-MS). Most of the investigated PAHs except 11 volatile PAHs in quartz fiber filters, and all of PAHs in acetonitrile were stable during 1 week storage and 4 week-storage in a refrigerator at 4°C, respectively. It was found that 14 PAHs in quartz fiber filters and 9 PAHs in airborne particulates decreased less than 70% under UV light during 2 weeks. Photodegradation of PAHs spiked in quartz fiber filters under UV storage was faster than those in airborne particulates. Thirty-two and 39 PAHs in acetonitrile decreased less than 70% during 2 week-storage and 4 week-storage under sunlight by the window, respectively. Photo-changed compounds such as anthracene, benz [a] anthracene, naphthacene, 9-anthraldehyde, acenaphthenequinone and anthracene-d₁₀ were tentatively identified by GC-MS. It was clarified that nonpolar and oxygenated PAHs were gradually changed into their oxygenated derivatives such as quinones and ketones. Consequently, it is recommendable that the airborne particulate sample and standard solution for PAHs should be kept without light such as in a refrigerator.
关键词：polycyclic aromatic hydrocarbon;photostability;airborne particulate;acetonitrile;oxygenated derivative;GC-MS