中国稻米

中国稻米 ›› 2014, Vol. 20 ›› Issue (6): 18-20.DOI: 10.3969/j.issn.1006-8082.2014.06.005

• 专论与研究 • 上一篇    下一篇

UPLC-MS/MS法检测稻米中苄嘧磺隆和苯噻酰草胺的残留量

  1. 黑龙江省农业科学院农产品质量安全研究所，哈尔滨 150086
  • 出版日期:2014-11-20 发布日期:2014-11-20
  • 基金资助:

    国家粮油作物产品质量安全风险评估项目（2014FP06）

Determination of Bensulfuron-methyl and Mefenacet Residues in Rice by UPLC-MS/MS

  • Online:2014-11-20 Published:2014-11-20

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被引次数

2

摘要： 建立了水稻中提取苄嘧磺隆和苯噻酰草胺残留量的液相色谱-质谱/质谱测定方法UPLC-MS /MS。稻米样品经乙腈匀浆，上清液经氮气吹干浓缩，过PSA固相萃取柱净化，经UPLC-MS/MS测定，外标法定量。苄嘧磺隆在稻米中的最低检出量为0.1 ng，最低检出浓度为0.02 mg/kg，添加回收率为77.7%～91.5%，稻米的RSD为2.9%～8.5%；苯噻酰草胺在稻米中的最低检出量为0.05 ng，最低检出浓度为0.01 mg/kg，添加回收率为94.0%～109.0%，稻米的RSD为5.0%～8.2%。建立方法准确、快速、灵敏度高，能够满足苄嘧磺隆和苯噻酰草胺残留量分析的要求。

关键词: 苄嘧磺隆, 苯噻酰草胺, 稻米, 高效液相色谱-质谱/质谱法

Abstract: Established the detection of bensulfuron-methyl and mefenacet residues in rice by UPLC-MS/MS methods. Rice samples were homogenized in acetonitrile, the supernatant was dried by nitrogen concentration, over PSA solid phase extraction（SPE）, measured by UPLC-MS/MS, external standard. Bensulfuron-methyl minimum detectable amount of rice is 0.1ng, the minimum detectable concentration of 0.02 mg/kg, recoveries were 77.7%~91.5%, rice RSD 2.9% to 8.5%; mefenacet in rice in the minimum detectable amount of 0.05 ng, the minimum detectable concentration of 0.01 mg/kg, recoveries were 94.0%~109.0%, rice RSD 5.0% to 8.2%. The method is accurate, rapid, sensitive and able to meet bensulfuron-methyl and mefenacet residue analysis.

Key words: Bensulfuron-methyl, Mefenacet, rice, liquid chromatography mass spectrometry（UPLC-MS/MS）

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