| 张雯雯1, 2, 徐军2, 张盈2, 董丰收2, 刘新刚2, 郑永权2*.超高效液相色谱-串联质谱法检测棉花和土壤中呋虫胺残留[J].植物保护,2015,41(2):125-129. |
| 超高效液相色谱-串联质谱法检测棉花和土壤中呋虫胺残留 |
| Determination of dinotefuran residues in cottons and soils using UPLC-MS/MS |
| 投稿时间：2014-02-21 修订日期：2014-03-14 |
| DOI： |
| 中文关键词: 呋虫胺 棉花 土壤 残留 UPLC-MS/MS |
| 英文关键词:dinotefuran cotton soil residue UPLC-MS/MS |
| 基金项目:国家自然科学基金(31171879, 31371968); 公益性行业(农业)科研专项(201203098) |
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| 中文摘要: |
| 在QuEChERS方法基础上, 建立了棉花和土壤中呋虫胺残留的超高效液相色谱-串联质谱(UPLC-MS/MS)快速检测分析方法。方法选用乙腈为提取剂, N-丙基乙二胺(PSA)和石墨化炭黑(GCB)为净化剂, 外标法定量。添加回收试验结果表明, 不同添加浓度的呋虫胺(0.01、0.05和0.5 mg/kg)在棉花植株、棉籽和土壤中的平均回收率为80.9%~107.5%, 变异系数为3.3%~10.3%, 定量限(LOQ)分别为4.81、3.41和 2.26 μg/kg。呋虫胺在棉花植株上的消解动态表明, 呋虫胺在河南省和山东省两地棉花植株中的降解半衰期分别为1.9 d和1.2 d。 |
| 英文摘要: |
| A rapid, highly sensitive and selective method was developed for determination of dinotefuran by using QuEChERS coupled with ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Target compounds were extracted with acetonitrile, and cleaned with primary secondary amine (PSA) and graphitized carbon black (GCB). Average recovery for cotton plants, cotton weeds and soils at three levels (0. 01, 0.05 and 0.5 mg/kg) ranged from 80.9%to 107.5% with a variation coefficient of 3.3%-10.3%, and the limits of quantitation (LOQ) were 4.81, 3.41 and 2.26 μg/kg, respectively. The results showed that the half-lives of dinotefuran were 1.9 and 1.2 days in cotton plants in Henan and Shandong, respectively. |
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