摘要
建立液相色谱质谱联用快速检测菜薹中丙溴磷残留的分析方法,并对丙溴磷在菜薹中的残留消解及对人体的膳食摄入风险进行了研究。结果表明:丙溴磷在菜薹中半衰期为1.3~4.7 d。40%丙溴磷乳油,按照360 g a.i./hm^2和450 g a.i./hm^2用量,喷雾施药2~3次,施药间隔7 d,距末次施药后间隔5 d采样,菜薹中丙溴磷的残留中值为1.69 mg/kg。膳食风险评估结果表明:丙溴磷在所有登记作物中的总膳食摄入风险商(RQ)为0.30。膳食风险在可接受范围,说明丙溴磷在菜薹中残留不会对国人健康产生影响。
A liquid chromatography-mass spectrometry( LC-MS) analytical method was developed in the study,which rapidly determined the residual amounts of profenofos in flowering Chinese cabbage.In addition,the residual digestion of profenofos in flowering Chinese cabbage and the dietary intake risk for people were studied.The results showed that the half-life of profenofos in flowering Chinese cabbage was 1.3 ~ 4.7 days.The application standards of 40% profenofos EC were spraying 2 ~ 3 times at intervals of 7 days according to the dosages of 360 g a.i./hm^2 and 450 g a.i./hm^2,and the ultimate residual amount of profenofos in flowering Chinese cabbage was determined as 1.69 mg/kg when taking samples after 5 days from the last application.The dietary risk assessment results showed that the total dietary intake RQ value of profenofos in all the registered crops was 0.30.Based on the above results,profenofos residue in flowering Chinese cabbage would not affect the health of general population in China.
作者
张爱娟
李瑞娟
刘同金
马新刚
冯义志
于建垒
梁林
左伯军
Zhang Aijuan;Li Ruijuan;Liu Tongjin;Ma Xingang;Feng Yizhi;Yu Jianlei;Liang Lin;Zuo Bojun(Shandong Academy of Pesticide Sciences/Key Laboratory of Chemical Pesticide of Shandong Province,Jinan 250033,China;Institute of Plant Protection,Shandong Academy of Agricultural Sciences,Jinan 250100,China)
出处
《山东农业科学》
2020年第7期142-145,共4页
Shandong Agricultural Sciences
基金
农业农村部农业行业标准制定与修订项目(14192019)
山东省农业科学院农业科技创新工程项目(CXGC2018E19)。
关键词
丙溴磷
菜薹
残留消解
风险评估
Profenofos
Flowering Chinese cabbage
Residual digestion
Risk assessment
作者简介
张爱娟(1986-),女,临沂人,硕士,工程师,主要从事农药残留分析研究。E-mail:aijuan921@163.com;通讯作者:梁林(1985-),男,淄博人,硕士,高级工程师,主要从事农药残留分析研究。E-mail:ll19851985@163.com;通讯作者:于建垒(1964-),男,山东海阳人,研究员,主要从事农药残留分析、农药安全使用研究。E-mail:jlyu2010@163.com。
