吡唑醚菌酯·氟环唑悬浮剂气相色谱分析

GC Analysis Research of Pyraclostrobin and Epoxiconazole SC

建立了一种同时测定悬浮剂中有效成分吡唑醚菌酯和氟环唑含量的GC-FID分析方法。采用RTX-1毛细管柱(30m×0.25mm×0.25μm)和FID检测器,以邻苯二甲酸二(2-乙基)己酯为内标,对试样中吡唑醚菌酯和氟环唑进行分离和检测。方法对吡唑醚菌酯和氟环唑的线性相关系数分别为0.999 9和0.999 9,标准偏差为0.11和0.05,相对标准偏差为0.45%和0.50%,平均添加回收率分别为99.01%和99.89%。

An analytical method was developed for simultaneous determination of pyraclostrobin and epoxiconazole in suspension concentrate by GC.Pyraclostrobin and epoxiconazole were separated and detected by RTX-1 capillary column(30m×0.25mm×0.25μm) and FID detector,and using di-(2-ethylhexyl) phthalate as internal standard.With the detection methods of pyraclostrobin and epoxiconazole,the linear correlation coefficient were 0.999 9 and 0.999 9,the standard deviations were 0.11 and 0.05,RSD were 0.45% and 0.50% ,and average recovery rate were 99.01% and 99.89% ,respectively.