Simultaneous Determination of Dinitroaniline Herbicides in Complex Matrix by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry
  
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KeyWord:dinitroaniline herbicides  complex matrix  ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)
  
AuthorInstitution
ZHANG Jian-ying,YUE Zhen-feng,CAI Yi-na,WU Wei-dong,CHEN Bo,WANG Hong-ju,ZHAO Qiong-hui 深圳出入境检验检疫局食品检验检疫技术中心
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Abstract:
      A method was developed for the determination of 8 kinds of dinitroaniline herbicides,including trifluralin,pendimethalin,butralin,isopropalin,dinitramine,nitralin,oryzalin and prodiamine in complex matrices(tea,soybean and chicken livers) by ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS).Qualification and confirmation were achieved by electro spray ionization(ESI) in positive mode using multiple reaction monitoring(MRM),and the external standard method was uesd for quantitation.The limits of quantitation were all 0.010 mg/kg.The recoveries of dinitroaniline herbicide residues were between 75.9% and 113% at spiked levels of 0.010-0.100 mg/kg.The RSDs of the method were between 1.7% and 19.0%.The method is precise and sensitive,and is suitable for both confirmation and quantification of trifluralin,pendimethalin,butralin,isopropalin,dinitramine,nitralin,oryzalin,prodiamine in tea,soybean and chicken livers.
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