【摘要】 本文将吸附溶出伏安法与催化波法结合起来,研究了Mo（Ⅵ）-H₂SO₄-苦杏仁酸-NaBrO₃体系的吸附溶出催化伏安法。钼（Ⅵ）在10（-12）—10（-8）M的范围内均可与峰高呈良好的线性关系。样品测定的精密度和回收率均令人满意。更多还原

【Abstract】 A method for the determination of trace Mo by adsorption stripping catalytic voltammetry （ASCV） has been established, The base solution consisted of 2.5×10^-3 mol dm^-3 H₂SO₄, 1×10^-4mol·dm^-3 mandelic acid and 2×10^-3mol·dm^-3 NaBrO₃·Mo（Ⅵ） accumulated on a HMDE by adsorbing the complex of Mo （Ⅵ） mandelic acid at -0.1V （vs SCE） for 1—3 min. When the potential of HMDE was linearly scanned to -0.7 V and a first derivative voltammogram was recorded, the stripping-catalytic peak of Mo（Ⅵ） appeared at -0.45 V. The peak current was linearly increased with the concentration of Mo （Ⅵ） over the range of 10^-12-10^-8mol·dm^-3. Satisfactory results have been obtained for the determination of biological samples and natural water.更多还原