| 用5-Br-PADAP为显色剂萃取光度法测定铁矿中微量镍 |
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| 引用本文： | 李玉珍.用5-Br-PADAP为显色剂萃取光度法测定铁矿中微量镍[J].岩石矿物学杂志,1982,1(2):63-65. |
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| 作者姓名： | 李玉珍 |
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| 作者单位： | 地质部岩矿测试技术研究所 |
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| 摘 要： | 2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚(简称5-Br-PADAP)是一高灵敏的显色剂、它与铋、钴、铜、镍、铁、镓、锰、铌、铀等十多种元素都能生成有色络合物。资料对镍与5-Br-PADAP络合物的光谱特征有所叙述。本文试验了5-Br-
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Extractive Spectrophotometric Determination of Micro Amounts of Nickel in lron ores with 5-Br-PADAP as Chromogenic agent |
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| Abstract: | In this papetr the optimum conditIoas for 6 Br-PADAP-Ni complex formation have been studied. The interference of other elements can be elimenated by extraction of the complex with tri-octylam9ae-dimethyl benzene from 7-8 N hydrochloric acid. The sensitivity of this extractant is abont ten times than that with ethyl ether. |
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