建立了在 Ｍ Ｉ Ｂ Ｋ Ａｇ Ｉ萃取体系中用火焰原子吸收法测定与碘定量反应的银，从而间接测定碘含量的快速分析方法。利用碘（ Ｉ－ ）在弱碱性介质中与银（ Ａｇ＋ ）生成 Ａｇ Ｉ，将 Ａｇ Ｉ萃取到有机相甲基异丁基甲酮（ Ｍ Ｉ Ｂ Ｋ）中，用火焰原子吸收测定有机相中银的吸收信号，从而得到相应碘的吸收值，间接求得人发中的碘。 A rapid method was established for the indirect determination of iodine by flame atomic absorption spectrometry for the determination of silver reacted with iodine in the M I B K Ag I extraction system. Ag I was generated with silver (Ag +) in a weakly basic medium with iodine (I-), Ag I was extracted into the organic phase methyl isobutyl ketone (M I B K), and the content of silver in the organic phase was determined by flame atomic absorption Absorb the signal, so as to get the corresponding absorption value of iodine, indirectly find the human hair iodine.