GC-MS测定2-CEES消毒产物及测定过程产生的新生化合物

Identification of decontaminant products and the new resultant from 2-CEES by GC-MS

以GC-MS联用技术测定了过氧化物复合消毒粉二氯甲烷萃取液中2-CEES的消毒产物,并通过改变进样口温度研究温度变化对消毒产物稳定性和色谱峰强度的影响。当进样口温度高于220℃时,2-CEES的氧化产物2-氯乙基乙基亚砜明显发生分解。通过比较研究新生化合物和2-氯乙基乙基亚砜质谱碎片的特征,并结合分子量信息,推测了新生化合物的结构。

Decontaminant products of 2-chloroethyl ethyl sulfide（2-CEES） in dichloromethane extract of peroxide decontamination powder were tested by gas chromatography-mass spectrometry. The influence of injector temperature on stability and peak intensity of the analytical results were studied. It was found that 2-chloroethyl ethyl sulfoxide, which was the oxidation product of 2-CEES,was decomposed when the injector temperature was higher than 220℃. Through comparing the mass fragments of the new decomposition chemical with those of 2-chloroethyl ethyl sulfoxide, the structure of the new product was speculated.