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当前位置: 首页 > 文章 > 噻苯隆和敌草隆在棉花中的残留消解动态及残留量 现代农药 2017 (4) 35-38
Position: Home > Articles > Residues and Degradation Dynamics of Thidiazuron and Diuron in Cotton Modern Agrochemicals 2017 (4) 35-38

噻苯隆和敌草隆在棉花中的残留消解动态及残留量

作  者：
冯义志;金杰;潘金菊;齐晓雪;梁林;刘伟
单  位：
山东省农药科学研究院山东省化学农药重点实验室
关键词：
噻苯隆;敌草隆;棉花;土壤;消解动态;残留
摘  要：
建立高效液相色谱质谱联用(HPLC-MS/MS)方法测定噻苯隆和敌草隆在棉花中的残留,对噻苯隆和敌草隆在棉花和土壤中的残留降解进行研究。结果表明:添加质量分数为0.01~10.0mg/kg时,噻苯隆和敌草隆在棉籽、土壤和棉叶中的平均添加回收率为77.5%~101.1%,相对标准偏差为1.4%~9.2%。噻苯隆在棉叶和土壤中的半衰期分别为2.2~3.4 d、11.1~16.8 d。敌草隆在棉叶和土壤中的半衰期分别为2.5~3.3 d、11.4~18.9 d。当540 g/L噻苯·敌草隆悬浮剂有效成分用量为97.2~145.8 g/hm~2,喷雾施药1次,棉籽中噻苯隆和敌草隆的残留量均为未检出(<0.01 mg/kg)。该方法快速简便,准确可靠。
译  名：
Residues and Degradation Dynamics of Thidiazuron and Diuron in Cotton
作  者：
FENG Yi-zhi;JIN-Jie;PAN Jin-ju;QI Xiao-xue;LIANG Lin;LIU Wei;Key Laboratory for Chemical Pesticide of Shandong Province,Shandong Academy of Pesticide Sciences;
关键词：
thidiazuron;;diuron;;cotton;;soil;;degradation dynamics;;residue
摘  要：
An analytical method for determining thidiazuron and diuron was developed by high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).The residues and the degradation dynamics of thidiazuron and diuron in cotton and soil were studied.The results showed that at the fortified concentration of 0.01-10.0 mg/kg,the average recoveries of thidiazuron and diuron in cotton leaves,cotton seeds and soil were 77.5%-101.1%,the relative standard deviations were 1.4%-9.2%.The decline dynamics study results showed that the half-life values(T1/2) of thidiazuron in cotton leaves and soil were 2.2-3.4 d and 11.1-16.8 d,respectively.The half-life values(T1/2) of diuron in cotton leaves and soil were 2.5-3.3 d and 11.4-18.9 d,respectively.The ultimate residues of thidiazuron and diuron in cotton seeds were below 0.01 mg/kg.The method was fast,simple,accurate and reliable.

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