甲基硫菌灵在苹果和土壤中的消解动态和最终残留研究 摘要：采用液相色谱-紫外检测器（HPLC-VWD），对3个不同区域（烟台、天津、宿州）2011―2012年苹果和土壤中70%甲基硫菌灵可湿性粉剂的消解动态和最终残留进行了研究。结果表明，甲基硫菌灵（含多菌灵）在苹果及土壤中的消解动态符合一级动力学反应模式，～ ～ d；在末次施药后30 d，甲基硫菌灵（含多菌灵）在苹果中残留量为<～ mg/kg，低于国际食品法典委员会（CAC） mg/kg，表明施用875～1 mg 70%甲基硫菌灵可湿性粉剂3～4次，在苹果上是安全的，且对土壤无污染。 关键词：甲基硫菌灵；苹果；土壤；消解动态；最终残留 中图分类号：+2文献标识号：A文章编号：1001-4942（2018）04-0128-05 Abstract The degradation dynamics and final residues of thiophanate-methyl wettable powder in apples and soils of 3 different areas （Yantai， Tianjin， Suzhou） from 2011 to 2012 were studied by HPLC-VWD. The results showed that the degradation dynamics of thiophanate-methyl including carbendazol conformed to the first-order kinetic reaction equation. The degradation half-lives were ～ d and ～ day in apples and soils respectively. After 30 days from the last application， the final residual quantities of thiophanate-methyl including carbendazol were ranged from below mg/kg to mg/kg， which were lower than mg/kg prescribed by CAC. The study indicated that the application of 70% thiophanate-methyl wettable powder at the doses of 875～1 mg for 3～4 times was safe to apple and soil. Keywords Thiophanate-methyl； Apple； Soil； Degradation dynamics； Final residues 甲基硫菌?`（thiophanate-methyl）是一种广谱性内吸低毒杀菌剂，属于苯并咪唑类杀菌剂，它在植物体内通过转
