Discrimination and identification of the six aromatic positional isomers of trimethoxyamphetamine (TMA) by gas chromatography-mass spectrometry (GC-MS)
作者:Kei Zaitsu、Munehiro Katagi、Hiroe Kamata、Tooru Kamata、Noriaki Shima、Akihiro Miki、Tatsunori Iwamura、Hitoshi Tsuchihashi
DOI:10.1002/jms.1347
日期:2008.4
A reliable and accurate GC-MS method was developed that allows both mass spectrometric and chromatographic discrimination of the six aromatic positional isomers of trimethoxyamphetamine (TMA). Regardless of the trifluoroacetyl (TFA) derivatization, chromatographic separation of all the investigated isomers was achieved by using DB-5 ms capillary columns (30 m x 0.32 mm i.d.), with run times less than
开发了一种可靠,准确的GC-MS方法,该方法可以对三甲氧基苯丙胺(TMA)的六个芳族位置异构体进行质谱和色谱鉴别。不论三氟乙酰基(TFA)衍生化如何,使用DB-5 ms毛细管柱(30 mx 0.32 mm内径)均可实现所有研究的异构体的色谱分离,运行时间少于15分钟。然而,除2,4,6-三甲氧基苯丙胺(TMA-6)外,未衍生化的TMA的质谱显示出不足以进行明确的区分。另一方面,六个异构体的TFA衍生物的质谱图显示出具有明显的强度差异的片段,从而可以明确鉴定本研究中研究的所有芳族位置异构体。