水中碘的含量能够反映一个地区外环境碘的基础水平,是划分碘缺乏病(IDD)病区[1]及水源性高碘地区和地方性高碘甲状腺肿病区[2]的指标之一,在本底调查和监测等工作中都需要测定其含量。不同地区外环境水碘含量差异很大,每升水中含碘量从几微升到几千微升不等,我国大部分地区属于缺碘地区,水碘含量在0μg/L～10μg/L之间,通常在检测中, The content of iodine in water can reflect the basic level of iodine in the environment outside an area and is one of the indexes for dividing iodine deficiency disease (IDD) [1] and high water iodine area and endemic high iodine goiter area [2] , In the background investigation and monitoring work needs to determine its content. Different regions outside the environment water iodine content varies greatly, each liter of water containing iodine from a few liters to several thousand microliters, most of our region is iodine-deficient areas, water iodine content of 0μg / L ~ 10μg / L of Between, usually in the test,