分析测试学报2001，Vol.20Issue(3)：54-55,56,3.
煤矸石中痕量钴的催化光度法测定
Catalytic Spectrophotometric Determination of Trace Cobalt(Ⅱ ) in Coal Gangue
摘要
Abstract
Trace Co(Ⅱ)catalyzes fading reaction of morin oxidized by hydrogen peroxide in the medium of NaB4O7-NaOH buffer of pH 10.0， and its fading extent is linearly related to the concentration of Co(Ⅱ )． A new spectrophotometric method for determining trace Co(Ⅱ )was developed in view of the above with a detection limit of 7.6× 10-2 μ g/L for Co(Ⅱ ) at 415 nm. Beer's law is obeyed in the range of 0.0～ 50 μ g/L for Co(Ⅱ ). Combined with solvent extraction separation， the method has been applied to the determination of trace Co in coal gangue.关键词
分光光度法/桑色素/钴/煤矸石分类
化学化工引用本文复制引用
夏畅斌,史红文,何湘柱,黄念东..煤矸石中痕量钴的催化光度法测定[J].分析测试学报,2001,20(3):54-55,56,3.
