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研究了用ＩＣＰ发射光谱测定碘的分析方法。利用过氧化氢和高氯酸将Ｉ－氧化为易挥发的Ｉ２，溶液中碘的检测限可以达到１ｎｇ／ｍＬ。碘钙片样品用水溶解，在不分离沉淀情况下直接测定。试样溶液中底部的沉淀对Ｉ２有一定吸附影响。碘钙片样品中碘的检测限为０．４μｇ／ｇ。
The analytical method for the determination of iodine by ICP emission spectrometry was studied. Using hydrogen peroxide and perchloric acid to oxidize I-to-volatile I2, the detection limit of iodine in solution can reach 1 ng / mL. Iodine calcium samples were dissolved in water and measured directly without precipitation. The precipitate in the bottom of the sample solution has a certain adsorption effect on I2. Iodine calcium iodine detection limit of the sample was 0.4μg / g.