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亚胺硫磷是一种有效的杀虫剂,化学结构为: 根据原合成工艺路线,其中间物有:邻苯二甲酰亚胺N-羟甲基苯二甲酰亚胺,氯甲基苯二甲酰亚胺以及O.O—二甲基二硫代磷酸酯,其中(Ⅲ)与(Ⅳ)是亚胺硫磷最后合成的主要中间体。本文研究的亚胺硫磷测定方法可在上述中间物存在下进行。 1.仪器与试剂 LP60型极谱仪,蓄电池(6伏特),电解池(10毫升容积)。甲醇,醋酸铵,氯化钾,盐酸,聚乙烯醇。以上试剂均为分析纯。亚胺硫磷标准溶液:称取0.1000～0.1500克亚胺硫磷精品于100毫升容量瓶中,以甲醇溶解并稀释至刻度。聚乙烯醇溶液(0.5％);称取0.5克聚
Ithion is an effective insecticide, the chemical structure is: According to the original synthetic route, the intermediates are: phthalimide N-methylol phthalimide, chloromethyl Phthalimide and OO-dimethyldithiophosphates, wherein (III) and (IV) are the major intermediates for the final synthesis of imine. The methodology for the determination of imine in this study can be carried out in the presence of the above intermediates. 1. Instruments and reagents LP60-type polarography instrument, battery (6 volts), electrolytic cell (10 ml volume). Methanol, ammonium acetate, potassium chloride, hydrochloric acid, polyvinyl alcohol. The above reagents are of analytical grade. Methylthionine standard solution: Weigh 0.1000 ~ 0.1500 grams of methamidophos in 100 ml volumetric flask, dissolved in methanol and diluted to the mark. Polyvinyl alcohol solution (0.5%); weigh 0.5 grams of poly