固相萃取-GC-ECD法分析三七中腐霉利的消解动态及残留规律  

The Residual Dynamics and Final Residues of Procymidone in Panax notoginseng by SPE-GC-ECD

作　　者：杨莉 冯光泉 张文斌 曾江 曾鸿超 包媛媛[2] 刘云芝 YANG Li;FENG Guang-quan;ZHANG Wen-bin;ZENG Jiang;ZENG Hong-chao;BAO Yuan-yuan;LIU Yun-zhi(Wenshan Sanqi Research Institute,Wenshan University,Wenshan 663000,Yunnan,China;Yunnan Agriculture University,Kunming 650201,China)

机构地区：[1]文山学院文山三七研究院,云南文山663000 [2]云南农业大学,昆明650201

出　　处：《农药》2018年第12期908-911,共4页Agrochemicals

基　　金：云南省科技创新强省计划项目"三七种植及初加工的农残;重金属安全控制技术与集成示范"(2014AE014);云南省高校科技创新团队建设计划项目"云南省高校三七安全无污染种植加工关键技术科技创新团队"(IRTSTYN 2014-22)

摘　　要：[目的]建立三七中腐霉利的固相萃取-GC-ECD检测方法,并研究了三七上腐霉利的消解动态和残留规律。[方法]采用固相萃取-气相色谱检测法,样品经由丙酮提取,采用弗罗里硅土作为净化材料,带ECD检测器的气相色谱法检测。[结果] 50%腐霉利可湿性粉剂推荐高剂量1.5倍在三七茎叶和块根中的半衰期分别为12.97、17.24 d;腐霉利的推荐剂量三七上防治病害时,每年可以用药≤4次,最后一次施药距离采挖的安全间隔期为60 d。[Aims]To analysis the residual dynamics ofprocymidone in notoginseng and soil,and study final residues of procymidone in biennial notoginseng for making safe intervals by SPE-GC-ECD.[Methods]The samples of notoginseng root and plant were extracted with aceton,purified by Florian silica phase extraction column,and determinate by gas chromatograph with ECD detector.[Results]The half lives of 1.5 times of recommended high dose ofprocymidone 50% WP in plant and root ofnotoginseng were 12.97 and 17.24d.The safe intervals was 60 d by using the recommended dose in notoginseng and the application time was less than 4.

关 键 词：三七 腐霉利 固相萃取 消解动态 最终残留量 

分 类 号：TQ450.2[化学工程—农药化工]