The second order voltammetric technique Differential Alternative Pulses Voltammetry (DAPV) was applied in anodic stripping mode for simultaneous quantification of traces of species having close E_1/2. The potential‐time waveform and the signal processing allowing the DAPV application in stripping mode are presented. The pulses widths and amplitudes were optimized to obtain maximal sensitivity and resolution at traces of In³⁺ and Cd²⁺ (having E_1/2 difference of 45 mV) simultaneous quantification in presence of excess of Pb²⁺. Precise results for both species concentrations were obtained up to In³⁺ to Cd²⁺ concentration ratio as high as 1 to 10 without any sample pre‐treatment in purified industrial waste waters using 0.1 mol L⁻¹ HCl as supporting electrolyte.

中文翻译：

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阳极溶出差分差分脉冲伏安法在同时物种定量中的应用

二阶伏安技术在阳极溶出模式下应用了差分交替脉冲伏安法（DAPV）来同时定量具有接近E _1/2的物种的痕量。介绍了电位时间波形和允许DAPV应用在剥离模式下的信号处理。优化了脉冲宽度和幅度，以在In ³⁺和Cd ²⁺痕迹（E _1/2差为45 mV）同时定量存在过量Pb ^2+的情况下获得最大灵敏度和分辨率。获得了直到In ³⁺到Cd ²⁺为止的两种物质浓度的精确结果在使用0.1 mol L ^-1 HCl作为支持电解质的纯净工业废水中无需进行任何样品预处理的情况下，浓缩比高达1到10 。