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Study on Residues and digestion of Cyantraniliprole in Chewing Cane

Plant Diseases and Pests 2021年第5期12卷 12-16页

作者： Yuxia Yang Renfu Mo Qifeng Zhou Guoxin Qin Tianshun Wang Huiling Li Jie He Shuibing Lao Agro-Products Quality Safety and Testing Technology Research Institute Guangxi Academy of Agricultural Sciences/Quality Supervision and Testing Center for SugarcaneMinistry of Agriculture and Rural Affairs(Nanning)Nanning 530007China

[Objective]The paper was to establish a method for the determination of cyantraniliprole residue in chewing cane,and analyze the residue and digestion dynamics of cyantraniliprole in chewing cane.[Method]The chewing cane samples were extracted by acetonitrile,purified by improved QuEChERS method,and detected by UPLC/MS/MS.[Result]Cyananseramide showed a good linear relationship in the concentration range of 0.005-0.250 mg/L(R2=0.9991).When the added mass concentration ranged from 0.02 to 0.40 mg/kg,the recovery rates of cyantraniliprole were respectively 83.1%-110.1%for chewing cane leaves and 88.2%-109.2%for chewing cane stems;the relative standard deviations were respectively2.38%-7.98%for chewing cane leaves and 2.26%-3.10%for chewing cane *** limit of detection(LOD)in chewing cane was 0.05μg/kg and the limit of quantification(LOQ)was 0.02 mg/*** trial results of two chewing cane fields in Guangxi showed that the half-lives of cyantraniliprole in chewing cane leaves were 7.76 and 6.12 d,respectively,and the correlation coefficients were 0.9570 and 0.9241,respectively.[Conclusion]The method is sensitive,accurate,simple and rapid,and it can be used to determine the residue and half-life of cyantraniliprole in chewing *** results will provide technical support for the safe use of cyantraniliprole in chewing cane.

关键词： Cyantraniliprole Chewing Cane UPLC-MS/MS Residues digestion dynamics

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