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研究了季铵酯类农药的甲基橙萃取分光光度分析法,它灵敏、简便、快速,在25ml中农药含量10～70μg范围内符合光吸收定律,其摩尔吸光系数ε为3.1×10~4l·cm~(-1)·mol~(-1)。
The methyl orange extraction spectrophotometric method of quaternary ester pesticides was studied. The method is sensitive, simple and rapid, and accords with the law of light absorption in the range of 10 ~ 70μg in 25ml pesticides. The molar extinction coefficient ε is 3.1 × 10 ~ 4l · Cm ~ (-1) · mol ~ (-1).