果蔬中二甲戊乐灵、氟乐灵、双丁乐灵残留测定.pdfVIP

果蔬中二甲戊乐灵、氟乐灵、双丁乐灵残留测定 陈其勇，郑文杰，肖亚兵，王云凤，常春艳 (天津出入境检验检疫局，天津300456) 摘要：采用基质分散固相萃取(MsPD)为样品前处理方法，建立气相色谱一串联四极杆质谱快速检测蔬菜、水果中 二甲戊乐灵、氟乐灵、双丁乐灵残留分析方法。果蔬类样品经乙腈提取，乙二胺一N一丙级甲烷(PSA)分散固相(DSPE) 内二甲戊乐灵、氟乐灵、双丁乐灵的平均添加回收卒在78．5％～109．3％之间，相对标准偏差不大于8．8％。 关键词：基质分散固相萃取；果蔬类样品；二硝基苯胺类除草剂；测定 DetermjnationofTIIreeDiIIitmaIli吐neHerbicideiIlFrllitsand MSPD—GC—M黝MS Vegetables删妇g CHEN Qi—yong，ZHENGWen-jie，XIAOYa—bing，WANGYun—feng，CHANGChun—yan and (TianjinEntry—Exjt Qua啪tineBureau，Tianjin300456，China) Inspection methodforthedeteminationof andbutralinresiduesin Abstract：A rapid pendimethalin，trinumlin ve异etables andfmitswasestablishedbasedonmatrix and solid—phasedispersiongaschromatography—massspec￡mme哆 wasextractedacetonitrileandthen (GC—MS／MS)．The sample by purifiedbypramimarysecondary锄ine (PsA)．Thet}lreedinitroanilineherbicideresidueswas GC—MS伽Sunder r；eaction arIalvzedby multiple dinitmanilinein recoveriesofthree herbicide andfmits were monitoringmode．Average vegetables samples tIlre foundinthe of78．5％一109_3％a11d leVelsf而m0．005 t00．2 relative range spiking mg／l【g mg，kg诵tll standarddeviationslessthan ． 8．8％． and dete瑚ination words：MSPD；frlJits herbicide； Key vegeLablessample；dinitr．0aniline 二甲戊乐灵(pendimethalin)、氟乐灵(trinuralin)及 双甲乐灵(butraJin)是在我国应用比较广泛的3种二硝