第 47 卷第 1 期Vol. 47 No. 1
2017 年 2 月Feb 2017

所属栏目:分析与测试

甲基嘧啶磷及其杂质的GC-MS分析研究
杨 彬1,2,王胜德1,2,王 宇1,2* (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)
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,0.25 μm)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。
关键词:甲基嘧啶磷;气相色谱-质谱联用法;分析
中图分类号:O657  文献标识码:A  文章编号:1009-9212(2017)01-0066-04
Analysis of Pirimiphos-methyl and its Impurities
YANG Bin1,2, WANG Sheng-de1,2, WANG Yu1,2* (1. Hunan Research Institute of Chemical Industry, Co.,Ltd., National Engineering Center for Agrochemicals, Changsha 410014, China; 2.Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China)
Abstract:A GC-MS method, using HP-5MS column(30 m×0.25 mm, 0.25 um), taking program temperature was developed to separate and analyze pirimiphos-methyl and 8 impurities in technical material. Using electron impact(EI) 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 results showed a good significance to inproving products quality.
Key words:pirimiphos-methyl; GC-MS;analysis
基金项目:国家自然科学基金(21572050)。
作者简介:杨 彬(1984-),男,湖南芷江人,助理研究员,硕士,主要从事农药分析研究。
收稿日期:017-01-05