敌敌畏原油及其制剂的含量测定方法,国外资料报导有比色法、碘量法、碱液中水解法及气相色谱法等。但由于比色法的前处理麻烦;碘量法误差大,而且要分两次进行测定;气相色谱法需要用标准品及其它条件所限,所以,一般都用碱液中水解的方法来测定其含量。碱液中水解法是在样品中精密加入过量的氢氧化钠试液,使一克分子的敌敌畏和一克分子氢氧化钠进行定量反应,然后用盐酸当量液,回滴过量的氢氧化钠。这种方法,对反应温度 DDVP crude oil and its content determination method, foreign data reported colorimetry, iodometry, lye hydrolysis and gas chromatography. However, due to the pretreatment of colorimetric trouble; Iodometric error, and to be measured twice; gas chromatography and other conditions need to be limited by standards, it is generally determined by the hydrolysis of lye method Its content. Lye hydrolysis method is to accurately join in the sample excess sodium hydroxide test solution, so that one gram of molecular dichlorvos and one gram of molecular weight of sodium hydroxide quantitative reaction, and then hydrochloric acid equivalent solution, dropping excessive sodium hydroxide. This method, the reaction temperature