目前,测定微量碘的方法有比色法,催化法和电极法。文献曾报道牛奶中无机碘的气相色谱法,其基本原理是:无机碘在亚硝酸钠存在的硫酸介质中与丁酮-2反应,生成的碘丁酮用带电子捕获检测器的气相色谱仪测定。我们在文献的基础上,对原测定 At present, the method of determination of trace iodine colorimetric, catalytic and electrode method. The literature has reported the gas chromatography of inorganic iodine in milk, the basic principle is: inorganic iodine in the presence of sodium nitrite sulfuric acid medium with butanone -2 reaction, the generated iodobutanone with electronic capture detector gas chromatograph Determination. We are based on the literature, the original determination