高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (12): 1936.

• 论文 • 上一篇    下一篇

全氯代多环芳烃的大气压化学电离质谱

丁杰, 谢素原, 于腊佳, 黄荣彬, 郑兰荪   

  1. 厦门大学化学系, 固体表面物理化学国家重点实验室, 厦门 361005
  • 收稿日期:1999-01-09 出版日期:1999-12-24 发布日期:1999-12-24
  • 通讯作者: 郑兰荪
  • 作者简介:丁杰,女,24岁,硕士研究生.
  • 基金资助:

    国家自然科学基金重大项目(批准号:2989021)资助课题

DING Jie, XIE Su-Yuan, YU La-Jia, HUANG Rong-Bin, ZHENG Lan-Sun   

  1. Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen University, Xiamen, 361005
  • Received:1999-01-09 Online:1999-12-24 Published:1999-12-24

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被引次数

9

摘要： 8种全氯代多环芳烃的大气压化学电离质谱(APCI-MS)测试结果表明,在APCI离子源中,所有全氯代多环芳烃均能形成质量较样品分子量少19的负离子,该类负离子是样品分子离子解离一个氯原子后再结合一个氧原子的产物.当样品含有一个五元环时,仍能观察到样品的分子离子峰.APCI-MS是一种全氯代多环芳烃或其它弱极性有机物的理想质谱分析方法.

关键词: 全氯代多环芳烃, 大气压化学电离, 质谱

Abstract: By using an atmospheric pressure chemicaLIonization(APCI) source, negative ion mass spectra of eight perchlorinated polycyclic aromatic hydrocarbons(PAH), hexachlorobenzene, perchloronaphthalene, perchloroacenaphthylene, perchloroanthracene, perchlorophenanthrene, perchlorofluoranthene, perchloropyrene and perchlorocorannulene, have been recorded for the first time. In the ion source, the negative ions, whose masses are 19 less than the molecular weights of their pristine compounds, can be produced by losing a chloride atom and capturing an oxygen anion. Molecular ions of the samples can be produced from the perchlorinated PAHs containing a five membered ring. The results show that APCIis the right ion source for mass analysis of the organic compounds with low polarity such as the perchlorinated PAHs.

Key words: Perchlorinated polycyclic aromatic hydrocarbons, Atmospheric pressure chemicaLIonization, Mass spectrometry

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