| 分光光度法快速测定低合金钢中的铌 |
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| 引用本文： | 王长青,杨安香,陈贤红,吴少敏.分光光度法快速测定低合金钢中的铌[J].化学分析计量,2003,12(6):43-44. |
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| 作者姓名： | 王长青 杨安香 陈贤红 吴少敏 |
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| 作者单位： | 新余钢铁有限责任公司,新余,338013 |
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| 摘 要： | 用盐酸—过氧化氢溶解试样，在2．9mol／L盐酸溶液介质中，铌与氯磺酚—S形成稳定的蓝紫色络合物，其最大吸收波长约为650nm，用分光光度法可以测定低合金钢中的铌。用该法对含铌标准样品进行测定，测得值与标准值基本一致，测定结果的相对标准偏差为2．1％～6．7％。
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| 关 键 词： | 分光光度法 快速测定 低合金钢 铌 |
| 修稿时间： | 2003年7月1日 |
FAST DETERMINATION OF NIOBIUM IN THE LOW ALLOY STEEL BY SPECTROPHOTOMETRY |
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| Wang Changqing,Yang Anxiang,Chen Xianhong,Wu Shaomin.FAST DETERMINATION OF NIOBIUM IN THE LOW ALLOY STEEL BY SPECTROPHOTOMETRY[J].Chemical Analysis And Meterage,2003,12(6):43-44. |
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| Authors: | Wang Changqing Yang Anxiang Chen Xianhong Wu Shaomin |
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| Abstract: | The samples were dissolved rapidly by hydrochloric - hydrogen peroxide. In 2. 9 mol/L HC1 medium, the color reaction forms a stable blue purple complex which has an absorption maximum at 650 nm. Niobium in the low alloy steel was determined by spectrophotometry. Niobium certified reference materials were determined by this method . The determined value was consistent with standard value, the RSD is 2. 1 % -6.7%. |
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| Keywords: | niobium spectropholometry fast analysis low alloy steel |
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