碘是人体生命极为重要的微量元素 ,由于缺乏碘引起的地方性甲状腺肿大 ,已越来越受到人们的关注。为防止过高或过低摄入碘而产生危害 ,在食盐中加入碘是最经济有效的措施。测定碘的方法通常有滴定法 ,催化动力学法、离子色谱法、气象色谱法、原子吸收法、示波极谱法等。[1～ 6] Iodine is an extremely important trace element of human life. Due to the lack of iodine, endemic goitre has attracted more and more attention. To prevent excessive or too low intake of iodine and harm, iodine in salt is the most cost-effective measures. Determination of iodine methods are usually titration, catalytic kinetics, ion chromatography, gas chromatography, atomic absorption spectrometry, oscillopolarography and so on. [1 ~ 6]