Determination of Hexachlorocyclohexane by Gas Chromatography Combined with Femtosecond Laser Ionization Mass Spectrometry

Xixiang Yang, Tomoko Imasaka, Adan Li, Totaro Imasaka

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

Structural isomers and enantiomers of hexachlorocyclohexane (HCH) were separated using a chiral column by gas chromatography and quantitatively determined by multiphoton ionization mass spectrometry using an ultraviolet femtosecond laser (200 and 267 nm) as the ionization source. The order of elution of the enantiomers (i.e., (+)-α-HCH and (-)-α-HCH) was predicted from stabilization energies calculated for the complexes using permethylated γ-cyclodextrin as the stationary phase of the column, and the results were compared with the experimental data. The molecular ions observed for HCH were weak, even though they can be ionized through a process of resonance enhanced two-photon ionization at 200 nm. This unfavorable result can be attributed to the dissociation of the molecular ion, as predicted from quantum chemical calculations. [Figure not available: see fulltext.]

本文言語英語
ページ(範囲)1999-2005
ページ数7
ジャーナルJournal of the American Society for Mass Spectrometry
27
12
DOI
出版ステータス出版済み - 12 1 2016

All Science Journal Classification (ASJC) codes

  • 構造生物学
  • 分光学

フィンガープリント

「Determination of Hexachlorocyclohexane by Gas Chromatography Combined with Femtosecond Laser Ionization Mass Spectrometry」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル