| 离子交换—丁基罗丹明B光度法测定铅锌矿中微量镓 |
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| 引用本文： | 龙彦辉,代兴隆.离子交换—丁基罗丹明B光度法测定铅锌矿中微量镓[J].重庆大学学报(自然科学版),2002,25(9):16-19. |
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| 作者姓名： | 龙彦辉 代兴隆 |
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| 作者单位： | [1]重庆工业高等专科学校，重庆400050 [2]云南省驰宏锌锗股份有限公司，云南654211 |
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| 摘 要： | 本文研究了用国产强碱性氯型阴离子交换树脂分离除去矿石中大量存在的Zn^2 ,Pb^2 ,Al^3 ,Ca^2 等离子对镓测定的干扰，用6mol/L的HC1－抗坏血酸溶液消除Fe^3 等高价杂质离子的影响，留于柱上的镓用0.5mol/L HCl溶液洗脱，在酸性和TiCl3存在条件下，用苯萃取，测定GaCl4^-与丁基罗丹明B形成的紫红色配合物。用于铅锌矿石中微量镓（Ca)的测定，回收率在96．3％左右，RSD为24‰，结果令人满意。
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| 关 键 词： | 离子交换－丁基罗丹明B 阴离子交换 光度法 矿石 微量 镓 铅锌矿 |
| 文章编号： | 1000-582X(2002)09-0016-04 |
| 修稿时间： | 2002年4月4日 |
Ion Exchanging-Spectrophotometric Determination of Micro Amounts Gallium with Butylrhodamine B in Lead-Zinc Mineral I |
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| LONG Yan hui,DAI Xing long.Ion Exchanging-Spectrophotometric Determination of Micro Amounts Gallium with Butylrhodamine B in Lead-Zinc Mineral I[J].Journal of Chongqing University(Natural Science Edition),2002,25(9):16-19. |
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| Authors: | LONG Yan hui DAI Xing long |
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| Institution: | LONG Yan hui 1,DAI Xing long 2 |
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| Abstract: | This paper developed a spectrophotometric determination of micro amounts of Gallium with butylrhodamineB in lead-zinc mineral. Large amounts of interfering ions Zn 2+ ?Pb 2+ ?Al 3+ ?Ca 2+ can be separated by anion exchange resin. High bond ions can be eliminated by using 6 mol/L hydrochloric acid-ascorbic acid.Gallium remained in column can be eluted by 0.5 mol/L hydrochloric acid. In the presence of acidic and Titanium chloride, by means of benzene extracting,determined the ultraviolet-red complex combined GaCl - 4 with butylrhodamineB.The method has been applied to determination of micro amounts of Gallium in lead-zinc mineral satisfactorily. |
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| Keywords: | anion exchange spectrophotometry mineral micro amounts Gallium |
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