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借2-(2-咪唑偶氮)-苯酚-4-磺酸螯合物和液相色谱分离铬、钼、钒和钴

Separation of Chromium, Molybdenum, Vanadium and Cobalt With 2-(2-Imidazolylazo)-phenol-4-sulphonic Acid as Chelates by Reversed-phase Ion-pair High-performance Liquid Chromatography

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【Author】 Zhang Xiaosong , Lin Changshan, Wang Zujiang (Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026)Feng Jianzhang, Tong Shenyang (Department of Chemistry, Peking University)

【机构】中国科学技术大学应用化学系!合肥230026；北京大学化学系；

【摘要】研究了离子对反相高效液相色谱分离铬(Ⅲ)、钼(Ⅵ)、钒(Ⅳ)和钻(Ⅱ)之2-(2一咪唑偶氮)-苯酚-4-磺酸螯合物的柱前衍生条件,检测彼长的选择,流动相中有机溶剂、四丁基溴化铵及酸度的影响,并讨论了15种外来离子的干扰情况.本方法巳用于合辣金钢和钒喳的分析.检测限为0.4ng铬、1.2ng钼和0.lng钒.更多还原

【Abstract】 The reversed-phase ion-pair high-performance liquid chromatographic separation of chromium ( Ⅲ ), molybdenum ( Ⅵ), vanadium (Ⅴ) and cobalt ( Ⅱ ) as chelates with 2-(2-imidazoIylazo)-phenol-4-sulphonic acid was investigated. The method has been applied to the determination of chromium, molybdenum and vanadium in alloy steel and vanadium slag samples. The detection limits were 0. 4, 1. 2 and 0. 2 ng, respectively.更多还原

【关键词】高效液相色谱；铬；钼；钒测定； 2-(2-咪唑偶氮)-苯酚-4-磺酸.；
【Key words】 High-performance liquid chromatography； 2-(2-imidazolylazo )-phenol-4-sul-phonic acid； chromium； molybdenum； vanadium；

【基金】国家自然科学基金资助课题

【文献出处】分析化学 ,Chinese Journal of Analytieal Chemistry , 编辑部邮箱 ,1995年07期

【分类号】O658
【被引频次】3
【下载频次】75

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