Analysis of 80% Pymetrozine·Nitenpyram WG by HPLC  

作　　者：qian xun guo cuijuan wang li zhang shaojun 

机构地区：[1]Research Centre of Quality and Safety of Agro-products,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051

出　　处：《Plant Diseases and Pests》2018年第1期38-40,共3页植物病虫害研究（英文版）

摘　　要：[Objective] The paper was to establish a HPLC method for quantitative determination of 80% pymetrozine·nitenpyram WG. [Method] With the mixture of acetonitrile, water and phosphate buffer （volume ratio 10：80：10） as the mobile phase, pymetrozine and nitenpyram in samples were separated by ODS-2 reversed phase column, and detected by UV detector at 250 nm. In addition, the results were quantified by external standard method. [Result] The linear correlation coefficients of pymetrozine and nitenpyram were 0.9995 and 0.9998; the standard deviations were 0.29 and 0.22; the coefficients of variation were 0.51% and 1.21%; and the average recoveries were 100.7% and 99.1%, respectively. [Conclusion] The method is fast and simple, and can effectively separate pymetrozine and nitenpyram, with high precision and accuracy and good linear relation.[Objective] The paper was to establish a HPLC method for quantitative determination of 80% pymetrozine·nitenpyram WG. [Method] With the mixture of acetonitrile, water and phosphate buffer （volume ratio 10：80：10） as the mobile phase, pymetrozine and nitenpyram in samples were separated by ODS-2 reversed phase column, and detected by UV detector at 250 nm. In addition, the results were quantified by external standard method. [Result] The linear correlation coefficients of pymetrozine and nitenpyram were 0.9995 and 0.9998; the standard deviations were 0.29 and 0.22; the coefficients of variation were 0.51% and 1.21%; and the average recoveries were 100.7% and 99.1%, respectively. [Conclusion] The method is fast and simple, and can effectively separate pymetrozine and nitenpyram, with high precision and accuracy and good linear relation.

关 键 词：PYMETROZINE NITENPYRAM HPLC Water dispersible granule（WG） 

分 类 号：O657.72[理学—分析化学] O151.21[理学—化学]