2000•Jiangsu Agricutural ResearchRequires access
DETERMINATION OF CIS CYPERMETHRIN AND PHOXIM IN MIXED EMULSIFIABLE CONCENTRATE BY HPLC
Da Feng
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Abstract
The contents of cis cypermethrin and phoxim in mixed emulsifiable concentrate were determined by means of high performance liquid chromatography. The result showed that the cis isomer and trans isomer of cypermethrin, phoxim and impurities were clearly separated, the fortified recoveries of cypermethrin and phoxim were 99.19%～100.71% and 98.69%~101.45%, the coefficients of variation were 1.4% and 1.9% respectively according to 6 repeated measurements.