| 萃取富集-火焰原子吸收法测定碳酸钙中铅和镉 |
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| 引用本文： | 黄俭惠,邱丽.萃取富集-火焰原子吸收法测定碳酸钙中铅和镉[J].矿产与地质,2007,21(4):479-481. |
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| 作者姓名： | 黄俭惠 邱丽 |
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| 作者单位： | 桂林矿产地质研究院,广西,桂林,541004 |
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| 摘 要： | 将碳酸钙试样用盐酸溶解后,在0.6mol/L的盐酸介质中,用KI-MIBK萃取试样中微量的铅和镉,有机相用原子吸收分光光度法测定。该方法测定铅的相对标准偏差为2.38%-6.31%,回收率为96.5%-97.0%;测定镉的相对标准偏差为4.50%-5.52%,回收率为96%-102.8%。结果可靠,具有灵敏、准确、快速、选择性好等优点。适用于碳酸钙中铅、镉的测定。
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| 关 键 词： | 火焰原子吸收法 铅和镉的测定 碳酸钙 萃取富集 |
| 文章编号： | 1001-5663（2007）04-0479-03 |
| 收稿时间： | 2007-04-01 |
| 修稿时间： | 2007年4月1日 |
Extraction and enrichment - determination of Pb and Cd in calcium carbonate by flame atomic absorption method |
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| HUANG Jian-hui.Extraction and enrichment - determination of Pb and Cd in calcium carbonate by flame atomic absorption method[J].Mineral Resources and Geology,2007,21(4):479-481. |
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| Authors: | HUANG Jian-hui |
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| Abstract: | The method that the sample of calcium carbonate is dissolved with HCl of 0. 6mol/L, from which KI-MIBK is used to extract Pb and Cd , as well as atomic absorption spectrophotometry determination is adopted in organic phase is reliable, sensitive, accurate, fast with good selectivity etc. , and it is applicable for the determination of Pb and Cd in calcium carbonate since the relative standard deviation of this method in Pb determination is 2.38%-6.31% with its recovery ratio of 96.5%-97.0%, while the relative standard deviation of this method in Cd determination is 4.50% -5.52% with a recovery ratio of 96-102.8%. |
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| Keywords: | flame atomic absorption method determination of Pb and Cd calcium carbonate extraction and enrichment |
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