| 掩蔽锶-铬酸钡-碘量法测定碳酸锶中钡 |
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| 引用本文： | 吴卫东.掩蔽锶-铬酸钡-碘量法测定碳酸锶中钡[J].无机盐工业,2000,32(5):45-46. |
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| 作者姓名： | 吴卫东 |
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| 作者单位： | 南京红焰锶业有限公司,南京,211200 |
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| 摘 要： | 采用乙二胺四乙酸二钠掩蔽锶，在ＰＨ值为５．９条件下，钡离子重铬酸钾生成铬酸钡沉淀，分离后，用碘量法测定。相对标准偏差１．０２％－２．１７％，加标回收率９５％－１０３％。
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| 关 键 词： | EDTA 铬酸钡 碘量法 碳酸锶 钡 掩蔽锶 |
| 修稿时间： | 2000-03-28 |
DETERMINATION OF BARIUM IN STRONTIUM CARBONATE BY EDTA MASK-BARIUM CHROMATE-IODIMETRY |
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| WU Weidong.DETERMINATION OF BARIUM IN STRONTIUM CARBONATE BY EDTA MASK-BARIUM CHROMATE-IODIMETRY[J].Inorganic Chemicals Industry,2000,32(5):45-46. |
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| Authors: | WU Weidong |
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| Abstract: | A method for the determination of barium in strontium carbonate is introduced. It masks strontium with EDTA. In a medium of NaOAc - HO Ac buffer solution at pH 5. 9,Ba ( I ) reacts with potassium dichromate to form barium chro-mate precipitate. After separation, it is determined by iodimetry. The RSD obtained is between 1. 02%-2. 17% and the recovery rate is in the range of 95%-103%. |
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| Keywords: | EDTA mask5 barium chromate iodimetry barium |
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