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Johnson和Allen提出了一种称为收集的阳极溶出伏安法技术。首先将痕量金属离子电积在旋转环-盘系统中的盘电极上,再利用线性电位扫描使其溶出。溶出的金属离子在恒电位下以恒定的比例被收集在环电极上。由于在环电极上没有充电电流存在,因而得到的基线平坦,提高了信噪比,从而提高了分析的灵敏度。随后,Laser和Ariel,Schieffer和Blaedel等也进行过研究,并测定了铜、铅、锌和镉等痕量金属离子。
Johnson and Allen proposed an anodic stripping voltammetric technique called collection. First, traces of metal ions are electrowinned onto the disk electrode in a rotating ring-disk system and then eluted using a linear potential sweep. Dissolved metal ions are collected on the ring electrode at a constant ratio at a constant potential. Since there is no charging current at the ring electrode, the resulting baseline is flat and the signal-to-noise ratio is improved, thereby increasing the sensitivity of the analysis. Subsequently, Laser and Ariel, Schieffer and Blaedel also conducted research, and determination of trace metals such as copper, lead, zinc and cadmium.