| 富铬酵母中铬的化学种态及结合形态研究 |
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| 引用本文： | 丁文军,钱琴芳,柴之芳,侯小琳,丰伟悦,陈春英.富铬酵母中铬的化学种态及结合形态研究[J].分析化学,1999,27(9):1061-1064. |
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| 作者姓名： | 丁文军 钱琴芳 柴之芳 侯小琳 丰伟悦 陈春英 |
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| 作者单位： | 中国科学院高能物理研究所核分析技术实验室,北京,100080 |
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| 基金项目： | 国家自然科学基金“八五”重大课题(No.19392100) |
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| 摘 要： | 对富铬酵母中铬的化学种态进行了分析和初步探讨。在铬的化学种态测定中铬的使用离子交换和火焰原子吸收法测定了富铬酵母中的Ｃｒ（Ⅲ）,方法快速简便、定量回收,结果表明,总铬呈为１５８２μｇ／ｇ的富铬酵母中,无机态铬占１６％,其中Ｃｒ（Ⅲ）为２３２μｇ／ｇ,Ｃｒ（Ⅵ）为２４．５μｇ／ｇ。酵各过程中的８４％以上的无机铬化合物转化成有机铬。说明铬参与了酵母细胞的生物合成,促进生物转化,对提高富铬酵母的生物疚极
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| 关 键 词： | 富铬酵母 铬的化学种态 |
Studies on the Chemical Species and Combined State of Chromium in Cr-rich Brewer's Yeast |
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| Ding Wenjun,Qian Qinfang,Chai Zhifang,Hou Xiaolin,FENG Weiyue,Chen Chunying.Studies on the Chemical Species and Combined State of Chromium in Cr-rich Brewer's Yeast[J].Chinese Journal of Analytical Chemistry,1999,27(9):1061-1064. |
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| Authors: | Ding Wenjun Qian Qinfang Chai Zhifang Hou Xiaolin FENG Weiyue Chen Chunying |
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| Abstract: | The chemical species and combination state of chromium in Cr-rich brewer' s yeast were studied. In the analysis of its chemical species, the contents of Cr( ffi ) and Cr( "VI) in the filtrate were extracted with tris-buffer-glycine mixed solution and determined by exchange resin combined with atomic absorption spectrometry. The method was rapid and simple. The results indicated that the inorganic chromium only accounted for 14%-16% of the total chromium. During the organized process of Cr by the brewer' s yeast, more than 84% are transformed to the organic species, which demonstrates that chromium has participated in the biological synthesis of the yeast cell. This transfoimation is beneficial to improve the biological function of chromium. |
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| Keywords: | Chromium-rich brewer's yeast chemical species |
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