Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Simplified Method for Determination of Fungicide Prochloraz Residues in Wheat Using QuEChERS and UPLC-MS/MS

CHENG Li1,DONG Feng-shou2,LIU Xin-gang2,ZHENG Yong-quan2,CHEN Wu-ying2,WANG Chen-rui3,WANG Xiang-jing1(1.College of Agriculture,Northeast Agriculture University,Harbin 150030,China;2.Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Key Laboratoryof Pesticide Chemistry and Application,Ministry of Agriculture,Beijing 100193,China;3.Beijing City University,Beijing 100084,China)  
A simple and rapid method was developed for determining prochloraz residue in wheat.Prochloraz was extracted with acetonitrile and cleaned up with dispersive method on primary secondary amine,detected by ultra liquid chromatography-mass spectrometry under multiple reaction monitoring mode,and quantified by matrix-match standard solution.The correlation coefficient of the calibration curves was 0.999 4 within 0.001 mg/kg to 0.1 mg/kg.The mean recoveries of prochloraz in wheat were 91.8%~98.3%,at three spiked levels (0.001,0.01 and 0.1 mg/kg).The relative standard deviations (RSD) were 3.7%~7.0% and the limit of quantification (LOQ) of prochloraz in wheat was 0.000 1 mg/kg at the signal/noise (S/N) ratio of 10.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved