| 镍铁合金中镍含量的快速分析方法 |
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| 引用本文： | 邬景荣,谭小菊,许廷波,袁焕明.镍铁合金中镍含量的快速分析方法[J].大众科技,2013(4):86-88. |
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| 作者姓名： | 邬景荣 谭小菊 许廷波 袁焕明 |
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| 作者单位： | 1. 中国检验认证集团广西有限公司,广西 防城港 538001
2. 广西防城港市海洋环境监测中心,广西 防城港 538001 |
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| 摘 要： | 以盐酸、硝酸对镍铁合金进行分解试样,高氯酸除碳及氧化杂质元素,氢氟酸挥硅,以柠檬酸三钠为掩蔽剂,在碱性条件下(Ph8~9),用丁二酮肟络合镍元素生成稳定的沉淀,该沉淀经120℃烘干后称量得出镍含量。本方法操作简单,分析速度快,结果准确,且分析成本低,适合开展大批量样品的高效分析。
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| 关 键 词： | 镍铁合金 丁二酮肟 重量法 |
The rapid analysis method of the nickel content in the ferro-nickel alloy |
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| Abstract: | The sample is dissolved by hydrochloric acid and nitric acid,perchloric-acid to deduct carbon and oxide impurity elements,hydrofluoric acid to deduct the influence of silicon,then trisodium citrate as the complexing agent.Under alkaline conditions（Ph8-9）,With dimethylglyoxime complexing nickel element to form a stable precipitate.The precipitate was weighed after drying at 120℃,then calculate the nickel content.The method has the characteristics of being easy to operate,fast,accurate,low-cost,and more suitable for the efficient analysis of large numbers of samples. |
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| Keywords: | ferro-nickel dimethylglyoxime gravimetric method |
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