7.5%甲氰菊酯·噻螨酮EC的高效液相色谱分析

Determination of Hexythiazox and Fenpropathrin 7.5% EC by HPLC

采用高效液相色谱方法,以甲醇-水(体积比80∶20)为流动相,用紫外检测器于240nm处,在200mm×4.6mm(i.d.)HypersilODS不锈钢柱上同时测定甲·噻乳油中甲氰菊酯和噻螨酮的含量。在选定的色谱条件下,有效成分以及未知物能得到有效分离,并能获得较好的检测结果。测得甲氰菊酯、噻螨酮的相关系数为0.9995、0.9996,变异系数为1.49%和1.59%。

The quantitative analysis of hexythiazox and fenpropathrin EC was instruduced by reserve phase HPLC, with an 200 mm× 4.6 mm（i.d.） Hypersil ODS column and DAD detection at 240 nm. The mobile phase consisted of methyl alcohol and water ata ratio of 80：20 （by vol）. The results showed that the liner correlation for hexythiazox and fenpropathrin were 0.9995 and 0.9996, the stardard deviation were 1.49% and 1.59%, respectively.