甲基嘧啶磷及其杂质的GC-MS分析研究  

Analysis of Pirimiphos-methyl and its Impurities

作　　者：杨彬[1,2] 王胜德[1,2] 王宇[1,2] YANG Bin WANG Sheng-de WANG Yu(Hunan Research Institute of Chemical Industry, Co.,Ltd., National Engineering Center for Agrochemicals, Changsha 410014, China Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China)

机构地区：[1]湖南化工研究院有限公司国家农药创制工程技术研究中心,湖南长沙410014 [2]农用化学品湖南省重点实验室,湖南长沙410014

出　　处：《精细化工中间体》2017年第1期66-69,共4页Fine Chemical Intermediates

基　　金：国家自然科学基金(21572050)

摘　　要：采用气相色谱-质谱联用法对甲基嘧啶磷原药进行分离鉴定。采用HP-5MS(30 m×0.25 mm,0.25μm)毛细管柱,以EI源为离子源,得到甲基嘧啶磷及其8个杂质的质谱图,根据合成路线,推断出上述杂质结构,并讨论了甲基嘧啶磷的质谱裂解规律。实验结果有利于控制甲基嘧啶磷原药的杂质,提高产品质量。A GC-MS method, using HP-5MS column（30 m×0.25mm,0.25μm）, taking program temperature was developed to separate and analyze pirimiphos-methyl and 8 impurities in technical material. Using electron impact （El） method, pirimiphos-methyl and 8 impurities were identified and confirmed according to the synthetic route. The way of dissociation of pirimiphos-methyl was discussed. Using GC-FID method, the content of pirimiphos-methyl and 8 impurities were measured. The resuhs showed a good significance to inproving products quality.

关 键 词：甲基嘧啶磷 气相色谱-质谱联用法 分析 

分 类 号：O657[理学—分析化学]