气相色谱法测定牛奶中的总无机碘
Gas-liquid chromatographic determination of total inorganic iodine in milk.
作者信息
Bakker H J
出版信息
J Assoc Off Anal Chem. 1977 Nov;60(6):1307-9.
PMID:924933
Abstract
Total inorganic iodine in milk is determined by conversion to iodobutanone, which is quantitated by gas-liquid chromatography and electron capture detection. As little as 10 microgram/L can be determined. The thyroid-active iodine content of milk can be determined rapidly with a relative standard deviation of 1.9%. Average recoveries for added iodide and iodine were 95.5 and 94.6%, respectively.
摘要
牛奶中的总无机碘通过转化为碘丁酮来测定，碘丁酮通过气液色谱法和电子捕获检测进行定量。最低可测定至10微克/升。牛奶中具有甲状腺活性的碘含量可快速测定，相对标准偏差为1.9%。添加碘化物和碘的平均回收率分别为95.5%和94.6%。
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