| 示波极谱法测定易拉罐啤酒中的微量铝 |
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| 引用本文： | 李敏娇,罗祎,张述林. 示波极谱法测定易拉罐啤酒中的微量铝[J]. 饮料工业, 2008, 11(6): 31-33 |
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| 作者姓名： | 李敏娇 罗祎 张述林 |
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| 作者单位： | 四川理工学院材料与化学工程系,四川自贡,643000 |
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| 摘 要： | 研究了啤酒中的铝离子的极谱行为，用示波极谱法测定了啤酒中铝离子的含量。实验结果表明：在pH为7．0-8．0的三乙醇胺-茜素红S-磷酸二氢钠体系中，铝离子的浓度在0．5～250μg／L范围内与峰高呈良好的线性关系。相关系数r为0．9999，回收率为96．1％-103．3％，RSD为1．6％-4．5％。此方法简单、快速、测定结果令人满意。
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| 关 键 词： | 示波极谱法 铝 啤酒 |
Determination of trace aluminum in canned beer by oscillopolarography |
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| LI Min-jiao,LUO Yi,ZHANG Shu-lin. Determination of trace aluminum in canned beer by oscillopolarography[J]. Beverage Industry, 2008, 11(6): 31-33 |
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| Authors: | LI Min-jiao LUO Yi ZHANG Shu-lin |
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| Affiliation: | (Department of Material and Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, Sichuan, China) |
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| Abstract: | The polarogram behaviour of aluminum ions in canned beer was studied,and their content determined by oscillopolarography. The results showed that in a triethanolamine-alizarin red-sodium dihydrogen phosphate system of pH 7.0 8.0, the aluminum density had a good linear relation with the peak electric current in 0.5 - 250 μg/L. The detection limit was 0.5μg/L, the correlation coefficient r was 0.9999, the recovery was 96.1% - 103.3%, and the RSD was 1.6% - 4.5%. The method is simple and fast, and the result is satisfactory. |
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| Keywords: | oscillopolarography aluminum beer |
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