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采用正相柱，２５４ｎｍ检测器，石油醚／乙酸乙酯流动相系统，实现氯氰菊酯异构体与乳油杂质的良好分离。高效氯氰菊酯回收率９９．５％～１００．９％
A normal phase column, a 254 nm detector and a petroleum ether / ethyl acetate mobile phase system were used to achieve a good separation of the cypermethrin isomers and the EC impurities. Cypermethrin recovery of 99.5% to 100.9%