| 新银盐比色法快速测定化妆品中砷元素 |
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| 引用本文： | 赵红,于丽华,刘欣,刘建,吴敦虎. 新银盐比色法快速测定化妆品中砷元素[J]. 微量元素与健康研究, 2001, 18(4): 63-64 |
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| 作者姓名： | 赵红 于丽华 刘欣 刘建 吴敦虎 |
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| 作者单位： | 大连铁道学院环境与工程系,大连,116028 |
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| 摘 要： | 利用硼氢化钾片将化妆品中的砷元素还原为砷化氢 ,以新银盐为显色液 ,用便携式测砷仪快速测定化妆品中砷元素。其中 Sb、Bi、Se等元素用二甲基甲酰胺消除。该有色物的最大吸收峰在 40 0 nm处 ,检出下限为 0 .3 3× 1 0 -6,回收率大于 95 % ,且快速简便 ,能满足测定要求
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| 关 键 词： | 砷 新银盐 化妆品 比色法 |
| 文章编号： | 1005-5320(2001)04-0063-02 |
| 修稿时间： | 2001-07-31 |
Rapidly Detecting Arsenic in Cosmetic by Colorimetry with New Silver Salt |
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| Zhao Hong,Yu Lihua,Liu Xin,Liu Jian,Wu Dunhu. Rapidly Detecting Arsenic in Cosmetic by Colorimetry with New Silver Salt[J]. Studies of Trace Elements and Health, 2001, 18(4): 63-64 |
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| Authors: | Zhao Hong Yu Lihua Liu Xin Liu Jian Wu Dunhu |
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| Abstract: | Arsenic in cosmetic can be reduced by KBH 4 to form AsH 3,which can react with new silver salt to form a colored product.The whole processes can be rapidly fulfilled in a set of instrument called Portable Arsenic Monitor.The interference of Sb,bi,Se can be eliminated by DMF.The maximum absorbency gives out at 400 nm.The lowest liner range of the method is about 0.033 ppm and the recovery rate is over 95%.The method is simple,fast and can meet the requirements of the measurement. |
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| Keywords: | arsenic new silver salt cosmetic colorimetry |
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