作者拟定了一个测定碘化物含量的方法,原理为在含有碘化物的浓盐酸溶液中加入硝酸盐,使转变为氯化碘,过多的硝酸盐以脲分解除去,然后加入碘化钾,析出的碘以硫代硫酸钠标准溶液滴定,用此法测定碘化物时,有氯化物及溴化物存在,不致发生干扰。测定方法:取25ml混合制剂置烧瓶中,加入浓盐酸15—20ml,逐滴加入0:5M硝酸钾 The authors developed a method for the determination of iodide content, the principle is to add iodine in the concentrated hydrochloric acid solution of nitrate, so that into the iodine chloride, excessive nitrate decomposition to remove urea, and then add potassium iodide, iodine precipitation Sodium thiosulfate standard solution titration, determination of iodide by this method, the chloride and bromide exist, will not interfere. Determination: Take 25ml mixed preparation flask, adding concentrated hydrochloric acid 15-20ml, was added dropwise 0: 5M potassium nitrate