| 离子色谱法测定铬酸酐中的微量F~-、SO_4~(2-)、Cl~- |
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| 引用本文： | 王少明.离子色谱法测定铬酸酐中的微量F~-、SO_4~(2-)、Cl~-[J].化学分析计量,2002(1). |
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| 作者姓名： | 王少明 |
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| 作者单位： | 中国兵器工业第五三研究所 济南 |
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| 摘 要： | 建立了离子色谱法测定铬酸酐中微量F~-、SO_4~(2-)和Cl~-的方法。以水合联氨作还原剂,将铬酸酐溶液中的CrO_4~(2-)还原为Cr~(3+),以沉淀的方式除去,采用离子色谱法测定溶液中的微量F~-、SO_4~(2-)和Cl~-,其测量不确定度分别为6％、6％和5％。方法简便,测量结果准确、可靠。
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| 关 键 词： | 离子色谱法 铬酸酐 F~- SO_4~(2-) Cl~- 水合联氨 测量不确定度 |
DETERMINATION OF THE MICRO F~- , SO_4~(2-) AND CI~- IN CHROMIUM TRIOXIDE BY ION CHROMATOGRAPHY |
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| Wang Shaoming.DETERMINATION OF THE MICRO F~- , SO_4~(2-) AND CI~- IN CHROMIUM TRIOXIDE BY ION CHROMATOGRAPHY[J].Chemical Analysis And Meterage,2002(1). |
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| Authors: | Wang Shaoming |
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| Abstract: | A method is set up to determine the micro F- , SO42- and Cl- in chromium trioxide by ion chromatography.CrO42- in the chromium trioxide solution is reduced to Cr3+ with hydrated hydrazine as reducer, being removed in the precipitation form. In the determination of the micro F- , SO42- and Cl- in solution by ion chromatography, the uncertainty in measurement is 6% , 6% and 5% respectively. The method is convenient, the result is accurate and reliable. |
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| Keywords: | ion chromatography chromium trioxide F~- S0_4~(2-) Cl~- hydrated hydrazine uncertainty in measurement |
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