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采用气相色谱法，选择２％ＯＶ—１０１色谱柱，以癸二酸二辛酯为氯氰菊酯内标物，分析了２７％辛·氯乳油中氯氰菊酯的含量。氯氰菊酯平均回收率为９９．２％，标准偏差为０．０４４％，变异系数为１．１％。
The contents of cypermethrin in 27% EC and EC were analyzed by gas chromatography with 2% OV-101 column and dioctyl sebacate as cypermethrin internal standard. The average recovery of cypermethrin was 99.2% with a standard deviation of 0.044% and a coefficient of variation of 1.1%.