第 47 卷第 1 期 |  | Vol. 47 No. 1 | 2017 年 2 月 | Feb 2017 |
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所屬欄目:分析與測試
甲基嘧啶磷及其雜質(zhì)的GC-MS分析研究 |
楊 彬1,2,王勝德1,2,王 宇1,2*
(1. 湖南化工研究院有限公司 國家農藥創(chuàng )制工程技術(shù)研究中心,湖南 長(cháng)沙 410014;2. 農用化學(xué)品湖南省重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410014) |
摘 要:采用氣相色譜-質(zhì)譜聯(lián)用法對甲基嘧啶磷原藥進(jìn)行分離鑒定。采用HP-5MS(30 m×0.25 mm,0.25 μm)毛細管柱,以EI源為離子源,得到甲基嘧啶磷及其8個(gè)雜質(zhì)的質(zhì)譜圖,根據合成路線(xiàn),推斷出上述雜質(zhì)結構,并討論了甲基嘧啶磷的質(zhì)譜裂解規律。實(shí)驗結果有利于控制甲基嘧啶磷原藥的雜質(zhì),提高產(chǎn)品質(zhì)量。 |
關(guān)鍵詞:甲基嘧啶磷;氣相色譜-質(zhì)譜聯(lián)用法;分析 |
中圖分類(lèi)號:O657 文獻標識碼:A 文章編號:1009-9212(2017)01-0066-04 |
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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 |
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基金項目:國家自然科學(xué)基金(21572050)。
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作者簡(jiǎn)介:楊 彬(1984-),男,湖南芷江人,助理研究員,碩士,主要從事農藥分析研究。
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收稿日期:017-01-05
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