摘要
发现在硫酸介质中,痕量铜催化过氧化氢氧化酚红褪色的指示反应,研究了催化褪色反应的最佳条件和动力学参数,建立了测定痕量铜的新方法。方法的最低检测限为4.12×10-8 g/mL,测定范围为0～0.6 mg/mL。用于钢铁中痕量铜的测定,结果满意。
A kinetic spectrophotometric method for the determination of copper （ Ⅱ ） is established based on its catalytic effect on the oxidation of phenol red by hydrogen peroxide in H2SO4 medium. The detection limit is 4.12 ×10^-8g/mL, the determination range of copper （Ⅱ ） is 0 ～0.6 mg/mL. The method is applied to the determination of trace amounts of copper in steel samples with satisfactory results.
出处
《安徽工业大学学报（自然科学版）》
CAS
2007年第2期166-168,共3页
Journal of Anhui University of Technology（Natural Science）
关键词
催化反应
分光光度法
酚红
铜
catalytic reaction
kinetic spectrophotometry method
phenol red
copper determination
