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采用气相色谱法对六种色谱柱进行了选择,发现3％OV-17,3％OY-101和5％Apiezon三种填充柱分别在柱温185℃、175℃和195℃,检测温200℃、195℃和220℃条件下均能够对40％乙·氰水悬乳剂中的乙草胺、氰草津同时进行检测。在制剂中分别加入稳定剂或调节pH值都可以减少氰草津热贮后的分解率。对乙氰水悬乳剂中的两种有效成分的悬浮率的测定方法进行研究,方法的重现性良好。
Six kinds of columns were selected by gas chromatography. The results showed that the column packed with 3% OV-17,3% OY-101 and 5% Apiezon were packed at 185 ℃, 175 ℃ and 195 ℃ respectively and the detection temperature was 200 ℃ , 195 ° C and 220 ° C under the conditions of 40% acetonitrile can be suspended acetonitrile Acetochlor, Cyantin Jin simultaneous detection. Adding stabilizers or adjusting pH value respectively in the preparation can reduce the decomposition rate of cyanuric acid after heat storage. The method of measuring the suspension ratio of the two active ingredients in the acetonitrile suspension was studied, and the reproducibility of the method was good.