期刊论文

Determination of Metamifop and Its Metabolites in Rice by Ultra Performance Liquid Chromatography-tandem Mass Spectrometry

中文

精细化工中间体

1009-9212

2020

50

3

77-80

10.19342/j.cnki.issn.1009-9212.2020.03.017

本校为第一机构

建立了超高效液相色谱-串联质谱（UPLC-MS/MS）快速检测水稻植株、稻壳、糙米中噁唑酰草胺及其代谢物（HFMPA、 HPFMPA、 6-CBO）残留量的方法。样品用乙腈提取PSA净化处理,过0.22μm有机系滤膜后,以乙腈-甲酸水为流动相,在电喷雾正离子模式下以多反应监测（MRM）模式测定,用标准溶液外标法定量。结果表明:方法的线性范围为0.05～1.00 mg·kg-1,决定系数（R2）>0.99;在0.05、 0.50、1.00 mg·kg-13个添加水平下,该方法平均回收率为82%～109%,相对标准偏差为2%～8%,定量限为0.01 mg·kg-1。该处理方法操作简便快速、准确率高、灵敏度高,适用于实际操作,是水稻中噁唑酰草胺及其代谢物（HFMPA、 HP...

A method for the rapid determination of oxazolylamine and its metabolites(hfmpa,hpfmpa,6-cbo)residues in rice plants,husks and brown rice by ultra high performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)was established.Samples were extracted with acetonitrile and purified by PSA.After 0.22 m organic filtration membrane,acetonitrile/formic acid water was used as mobile phase.In the electrospray ionization mode,the multi reaction monitoring(MRM)mode was used to measure the samples.The results showed that the linear range of the...