| 亚硝基-R盐分光光度法测定铜镍锰矿中的钴 |
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| 引用本文： | 孟亚东,孙洛新,尚保忠,傅小强.亚硝基-R盐分光光度法测定铜镍锰矿中的钴[J].岩矿测试,2010,29(2):190-192. |
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| 作者姓名： | 孟亚东 孙洛新 尚保忠 傅小强 |
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| 作者单位： | 河南省地质调查院,河南,郑州,450007 |
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| 基金项目： | 海外国家地质基金项目资助 |
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| 摘 要： | 利用钴与亚硝基R盐在pH 5.5~7的乙酸溶液中,生成红色可溶性络合物,进行光度测定。拟定了刚果(金)高铜、高镍、高锰样品中钴的测定方法。实验确定了样品的溶解方式、显色剂的浓度及用量、煮沸时间和放置时间,并对矿样中铁、铜、镍、锰等主要干扰元素进行了试验。分析结果经标准样品验证、方法比对,均符合分析规范要求。
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| 关 键 词： | 钴 亚硝基-R盐 分光光度法 |
| 收稿时间： | 2009/7/12 0:00:00 |
| 修稿时间： | 2009/10/19 0:00:00 |
Nitroso-R Salt Spectrophotometric Determination of Cobalt in Copper, Nickel and Manganese Ores |
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| MENG Ya dong,SUN Luo xin,SHANG Bao zhong and FU Xiao qiang.Nitroso-R Salt Spectrophotometric Determination of Cobalt in Copper, Nickel and Manganese Ores[J].Rock and Mineral Analysis,2010,29(2):190-192. |
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| Authors: | MENG Ya dong SUN Luo xin SHANG Bao zhong and FU Xiao qiang |
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| Institution: | Geological Survey of Henan Province;Geological Survey of Henan Province;Geological Survey of Henan Province;Geological Survey of Henan Province |
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| Abstract: | The reaction that cobalt reacts with nitroso-R salt in pH 5.5 ～ 7 acetic acid solution and forms a red soluble complex was used in spectrophotometric determination of cobalt. The sample pretreatment and determination conditions, such as sample digestion method, chromogenic agent concentration and dosage, boiling time and storage time of the sample solution, etc were tested and optimized. The interference from elements of Fe, Cu, Ni and Mn on the determination of Co was also studied. The method has been applied to the determination of Co in Cu, Ni and Mn ores with satisfactory results. |
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| Keywords: | cobalt nitroso-R salt spectrophotometry |
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