| 碳酸钙共沉淀-火焰原子吸收光谱法测定卤水中痕量铜铅锌 |
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| 引用本文： | 仲金虎,王洪彬.碳酸钙共沉淀-火焰原子吸收光谱法测定卤水中痕量铜铅锌[J].岩矿测试,2006,25(1):89-90. |
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| 作者姓名： | 仲金虎 王洪彬 |
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| 作者单位： | 青海省柴达木综合地质勘查大队实验室,青海,格尔木,816000 |
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| 摘 要： | 以碳酸钙共沉淀卤水中的痕量Cu、Pb、Zn，用火焰原子吸收光谱法测定。对试剂的加入量、富集时间、酸度等影响因素进行了实验，选择了最佳的共沉淀条件。方法已用于卤水分析，加标回收率为Cu94．0％～97．6％、Pb94．0％。102％、Zn93．4％-102％。对卤水样品6次测定的相对标准偏差为Cu0．49％、Pb0．79％、Zn1．85％。
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| 关 键 词： | 共沉淀 火焰原子吸收光谱法 卤水 铜 铅 锌 |
| 文章编号： | 0254-5357（2006）01-0089-02 |
| 收稿时间： | 2005-07-04 |
| 修稿时间： | 2005-07-042005-10-21 |
Determination of Trace Copper, Lead and Zinc in Brines by FAAS after Co-precipitation with Calcium Carbonate |
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| ZHONG Jin-hu,WANG Hong-bin.Determination of Trace Copper, Lead and Zinc in Brines by FAAS after Co-precipitation with Calcium Carbonate[J].Rock and Mineral Analysis,2006,25(1):89-90. |
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| Authors: | ZHONG Jin-hu WANG Hong-bin |
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| Institution: | Laboratory of Chaidamu Comprehensive Geological Exploration Crew, Golmud 816000, China |
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| Abstract: | Trace copper,lead and zinc in brines were determined by flame atomic absorption spectrometry after separation and pre-concentration by co-precipitation with calcium carbonate.Some parameters influencing the co-precipitation separation,including(amounts) of agents used,enrichment time and acidity are optimized.The precision(RSD,n=6) are 0.49% for copper,0.79% for lead and 1.85% for zinc.The recoveries of the method are 94.0%~97.6% for copper,94.0%~102% for lead and 93.4%~102% for zinc.The method has been applied to the determination of Cu,Pb and Zn in brine samples with satisfactory results. |
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| Keywords: | co-precipitation flame atomic absorption spectrometry(FAAS) brine copper lead zinc |
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