溴邻苯三酚红修饰碳糊电极的研制及微量锑的测定  

Development of a carbon paste electrode modified by bromopyrogallol red and determination of micro antimony

作　　者：夏姣云[1] 严规有[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《冶金分析》2004年第3期1-4,共4页Metallurgical Analysis

摘　　要：研制了用溴邻苯三酚红 (BPR)作修饰剂的碳糊修饰电极 ,将此电极用作工作电极 ,建立于CuCl存在下测定痕量锑的阳极溶出伏安法。研究了阳极溶出测定锑的条件。方法灵敏度高 ,检出限达 2 0× 10 - 9mol/L ;选择性好 ,不用预分离直接测定锌电解液中痕量锑 。A carbon paste electrode modified by bromopyrogallol red was prepared and used as a working electrode for the selective preconcentration of antimony*# in the presence of CuCl. The conditions of anodic stripping voltammetry for the determination of Sb was studied.The proposed method had good selectivity and high sensitivity,the detection limit is 2.0×10 -9 mol/L.The method had been successfully applied to the determination of trace antimony in zinc electrolyte with satisfactory results.

关 键 词：溴邻苯三酚红 修饰剂 碳糊修饰电极 研制 锑 锌电解液 吸附伏安法 测定 

分 类 号：O657.14[理学—分析化学]