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| 丁二酮肟-氨水溶液分光光度法测定高温合金中的镍 | |
| 引用本文： | 邝苏芳. 丁二酮肟-氨水溶液分光光度法测定高温合金中的镍[J]. 冶金丛刊, 2011, 0(6): 32-34 |
| 作者姓名： | 邝苏芳 |
| 作者单位： | 广州市冶金工业研究所; |
| 摘 要： | 试样经酸溶解,加热至高氯酸冒烟氧化铬至六价,将原试样溶液稀释34倍后,以柠檬酸三铵掩蔽铁、铝,在强碱性介质中,以碘-碘化钾溶液为氧化剂,镍与丁二酮肟生成红色铬合物,以化学成分与试样相近的标准样品为参照,测量其吸光度。方法具有操作简便、快速、结果精确的特点。 |
| 关 键 词： | 高温合金 稀释 丁二酮肟-氨水溶液 分光光度法 镍 |
DETERMINATION OF NICKEL IN HIGH TEMPERATURE ALLOY BY DIMETHYLGLYOXIME-AMMONIA SOLUTION SPECTROPHOTOMETRY |
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| Kuang Sufang. DETERMINATION OF NICKEL IN HIGH TEMPERATURE ALLOY BY DIMETHYLGLYOXIME-AMMONIA SOLUTION SPECTROPHOTOMETRY[J]. Metallurgical Collections, 2011, 0(6): 32-34 | |
| Authors: | Kuang Sufang |
| Affiliation: | Kuang Sufang(Guangzhou Research Institute of Metallurgical Industry,Guangzhou 510000,Guangdong) |
| Abstract: | The sample was dissolved in acid and perchloric acid smoking chromium oxide to six price.After the original sample solution was diluted 34 times,nickel and dimethylglyoxime created red complexes with three citric acid ammonium masking iron,aluminum in strong alkaline medium and using iodine-potassium iodide solution as oxidant.With similar chemical composition and sample standard sample for reference,the absorbance was measured.The characteristics of this method were simple,fast and accurate. |
| Keywords: | high temperature alloy dilution dimethylglyoxime-ammonia solution spectrophotometry nickel |
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