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基于丁氯苯硫脲[N-(4-丁氧苯基)-N′-(4-二甲胺基苯)硫脲]在乙醇的介质中与2,3-二氯-α萘醌作用,反应混合物用醇制氨液碱化,所呈紫色于540毫微米处具有最大吸收,因而可用于微量丁氨苯硫脲的测定,也适用于丁氨苯硫脲片剂的测定。当每毫升反应混合物中含本品20～80微克时最适宜。本法快速,具有±0.473%的重现性,结果较法定方法好。
Based on the Action of Butachlor Thiourea [N- (4-butoxyphenyl) -N ’- (4-dimethylaminophenyl) thiourea] with 2,3-dichloro-α naphthoquinone in the Ethanol The reaction mixture was alkalinized with an alcoholic ammonia solution and showed a purple color with maximum absorbance at 540 nm and was therefore useful for the determination of trace amounts of butaniline and also for the determination of butachlor thiourea tablets. When the reaction mixture contains 20 to 80 micrograms per milliliter of the most appropriate. This method is fast, with ± 0.473% reproducibility, the result is better than the statutory method.