【摘要】 本文研究了钒-没食子酸配合物在静汞电极上的吸附溶出特性.在含有1.6×10^-4mol/dm³没食子酸的Britton—Robinson缓冲溶液(（pH6.1）中,钒配合物的吸附溶出峰电位在-0.65V（VS.Ag/AgC1）左右,2.5次微分溶出峰高与钒浓度在0.0001—0.014μg/ml之间成线性关系.方法已成功地应用于水样和煤飞灰中痕量钒的测定。更多还原

【Abstract】 The adsorptive voltammetric characteristics of the complex of vanadi-um with gallic acid on a stationary mercury electrode have been inve-stigated. In the Britton-Robinson buffer solution at pH6.1 containing1.6×10^-4mol/dm³ gallic acid,a sensitive adsorptive complex wave of vanadium-gallic acid at -0.65V（vs.Ag/AgCl） has been obtained by using linearpotential sweep Voltarmmetry. The 2.5th order differential peak height islinearly proportional to the concentration of vanadium in the range of0.0001-0.014μg/ml. The proposed method has been applied to the deter-mination of trace amounts of vanadium in tap water and coal fly ashwith satisfactory results.更多还原