摘要
采用银基汞膜电极为工作电极,研究了硒(Ⅳ)在0.10 mol/L HClO4与1 mg/L Cu(Ⅱ)离子的电解液中,以硫氰酸根离子为增敏剂的阴极溶出行为,硒浓度在5~30 μg/L范围内与其峰电流呈良好的线性关系,并研究了铁(Ⅲ)、铅(Ⅱ)、锌(Ⅱ)、镉(Ⅱ)、硫(Ⅱ)碲(Ⅳ)等离子对测定硒的干扰问题.
A squarewave cathodic stripping voltammetic method for the determination of Se(Ⅳ) in 0.1 mmol,/L HClO4,1 mg/L Cu( Ⅱ ) and thiocyanate- containing electrolyte by using the thin -film mercury on silver electrode. The currents of peaks have a good liner relationship with concentration of Se( Ⅳ ) in the rang of 5 -30 μg/L. The influence of zinc( Ⅱ ) ,iron( Ⅲ ) ,lead( Ⅱ ) on the determination of Se(Ⅳ) has been studied.
出处
《辽宁大学学报(自然科学版)》
CAS
2005年第4期289-292,共4页
Journal of Liaoning University:Natural Sciences Edition
关键词
阴极溶出伏安法
硒(Ⅳ)
汞膜电极
cathodic stripping voltammetrie method
selenium( Ⅳ )
thin - film mercury electrode.