| 溴苯腈辛酸酯原药中主要杂质的GC/MS定性研究 |
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| 引用本文： | 林吉柏,母灿先,王志忠.溴苯腈辛酸酯原药中主要杂质的GC/MS定性研究[J].质谱学报,2003,24(1):278-278. |
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| 作者姓名： | 林吉柏 母灿先 王志忠 |
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| 作者单位： | 中国农科院植保所新农药组,北京,100094 |
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| 摘 要： | 利用气相色谱 -质谱联用仪对除草剂溴苯腈辛酸酯原药中所含主要杂质进行了定性研究 ,通过质谱图推断出主要杂质及其结构 ,合成杂质标样 ,由保留时间及质谱图确认了所推断的杂质组成和结构。
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| 关 键 词： | 质谱学 溴苯腈辛酸酯原药杂质定性鉴定 气相色谱-质谱联用(GC/MS) 除草剂 特征离子 裂解途径 |
| 文章编号： | 1004-2997(2003)01-278-05 |
| 收稿时间： | 2002-09-24 |
| 修稿时间： | 2002年9月24日 |
Research on the Identification for Main Impurities in Bromoxynil Octanoate by GC/MS |
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| LIN Ji-bo,MU Can-xian,WANG Zhi-zhong.Research on the Identification for Main Impurities in Bromoxynil Octanoate by GC/MS[J].Journal of Chinese Mass Spectrometry Society,2003,24(1):278-278. |
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| Authors: | LIN Ji-bo MU Can-xian WANG Zhi-zhong |
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| Abstract: | The original bromoxynil octanoate and its main impurities are identified by GC/MS. Original bromoxynil octanoate sample are dissolved in acetone, injecting the solution and separates on HP-5MS 30 m×0.25 μm×0.25 mm column coupled with GC. The peak information of significant impurities is captured by mass detector. The compounds are qualitatively confirmed by comparing with retention time and MS spectrum of the standards. Under above GC/MS conditions, all components are fully separated, impurity Ⅰ is measured to be m/z 158; impurity Ⅱ is m/z 317; impurity Ⅲ is m/z 434. The result indicates that impurity Ⅰ, Ⅱ and Ⅲ is methyl caprylate, 2,6-dibromo-4-cyanophenyl acetate, 2,6-dibromo-4-methoxycarbonyphenyl octanoate, respectively. |
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| Keywords: | mass spectrometry identification of main impurities in bromoxynil octanoate GC/MS weedicide characteristic ion fragment pathway |
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