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Position: Home > Articles > Residues of penconazole in cucumber and soil Jiangsu Journal of Agricultural Sciences 2012,28 (3) 100-104

戊菌唑在黄瓜和土壤中的残留

作  者:
张志勇;单炜力;龚勇;宋稳成;刘贤进
单  位:
江苏省食品质量安全重点实验室;农业部农药检定所
关键词:
戊菌唑;残留;黄瓜;土壤
摘  要:
为探明戊菌唑在黄瓜中的安全性,采用气相色谱-电子捕获器法对戊菌唑在江苏南京、北京和吉林长春3个试验点黄瓜和土壤中的残留消解动态和最终残留进行了研究。结果表明,在0.01 mg/kg、0.10 mg/kg和1.00 mg/kg 3个添加水平下,戊菌唑在黄瓜中的添加回收率为82.5%~94.2%,相对标准偏差为4.8%~7.5%;在土壤中平均回收率为81.2%~93.2%,相对标准偏差为6.2%~9.1%;戊菌唑在黄瓜和土壤中的最低检测浓度均为0.01 mg/kg。戊菌唑在3个试验点黄瓜中的半衰期为1.6~1.9 d,在土壤中的半衰期为1.8~2.3 d。戊菌唑按低剂量(57.0 g/hm2,a.i.)或高剂量(85.5 g/hm2,a.i.)施药2次或3次,在最后一次施药1 d、3 d和5 d后采收,黄瓜中戊菌唑的残留量均低于0.080 mg/kg。按试验推荐施药剂量和次数施用戊菌唑,参照CAC、欧盟或日本制订的黄瓜中戊菌唑的最大残留限量标准(0.1 mg/kg),所采收的黄瓜是安全的。
译  名:
Residues of penconazole in cucumber and soil
作  者:
ZHANG Zhi-yong1,SHAN Wei-li2,GONG Yong2,SONG Wen-cheng2,LIU Xian-jin1(1.Institute of Food Safety Research & Inspection,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;2.Institute of the Control of Agrochemicals,Ministry of Agriculture,Beijing 100125,China)
关键词:
penconazole;residue;cucumber;soil
摘  要:
To investigate the safety of penconazole in cucumber,degradation and final residues of penconazole in cucumber and soil on three experimental sites(Nanjing,Beijing and Changchun) were determined by means of meteorological chromatographic-electronic capture device.At the penconazole addtion levels of 0.01 mg/kg,0.10 mg/kg and 1.00 mg/kg,the recoveries in cucumbers were 82.5%-94.2%,with RSD 4.2%-7.5%,and the recoveries in soil were 81.2%-93.2%,with RSD of 6.2%-9.1%.The limits of detection of penconazole in cucumber and soil were both 0.01 mg/kg.The half-lives of penconazole in cucumbers on three sites were 1.6-1.9 d,and in soil were 1.8-3.2 d.When cucumbers were treated 2-3 times with low(57.0 g/hm2,a.i.) or high(85.5 g/hm2,a.i.) dosage of penconazole,the residues in cucumbers after the last application for 1 d,3 d and 5 d,were under 0.080 mg/kg,which was safe according to the MRL(minimum required performance level) standard(0.1 mg/kg) in cucumber from CAC(Codex Alimentarius Commission),Japan or Europe.

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