| 碘化物萃取原子吸收分光光度法连续测定矿石中的锑和铋 |
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| 引用本文： | 李雅儒.碘化物萃取原子吸收分光光度法连续测定矿石中的锑和铋[J].岩石矿物学杂志,1982,1(3):52-55. |
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| 作者姓名： | 李雅儒 |
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| 作者单位： | 青海地质局中心实验室 |
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| 摘 要： | 矿石中的锑、铋通常是利用其与碘离子分别生成黄绿色的碘化锑络阴离子SbI_4-、黄色的碘化铋络阴离子BiI_4-而进行比色测定。由于锑、铋在分析化学性质上的差异,试样的分解方法,显色条件亦有所不同,故往往是分别取样测定,有分析周期过长的缺点。利用碘化物萃取原子吸收分光光度法测定铋,已应用于矿石及铁合金中。Luke研究了在含碘化物的5％盐酸介质中,用甲基异丁基酮(MIBK)可定量萃取锑、铋等金属元素。Headrige制定了在
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Simultaneous Determination of Antimony and Bismuth in Minerals by Atomic-absorption spectrophotometry |
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| Abstract: | A method based on the solvent extraction of antimony and bismuth iodi-
des with methyl isobutyl ketone (MIBK) followed by a. a.s.determination has
been studied. 45 common elements do not interfere. The results are in good
agrement with those obtained by the photometric method with thiourea for
antimony and by extraction spectrophotometric method with potassium iodide
for bismuth. |
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