【摘要】 本文发现以钡（Ⅱ）作催化剂,能催化加速过硫酸铵氧化甲基蓝的褪色反应,据此建立了测定钡（Ⅱ）的催化动力学光度法。可测定2×10^-5～8×10^-5g/mL的钡（Ⅱ）,检测限为3.69×10^-6g/mL。更多还原

【Abstract】 A new method is studied in this paper for the determination of trace Ba（Ⅱ）.it is founded that Ba（Ⅱ） may catalyze the discoloring oxidation reaction of methyl blue by （NH₄）₂S₂O₈.A new catalytic method for the determination of trace Ba（Ⅱ） was thus developed.The linear range of 2×10^-5～8×10^-5g/mL was obtained for Ba （Ⅱ）.The sensitivity of the method was 3.69×10^-6g/mL.更多还原