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本法采用特制碳电极对含金试液加以富集后,在常规光谱分析条件下进行摄谱分析。经对电极性状及转速、富集液用量、电流强度和摄谱时间等主要影响因素进行试验选择,初步确定出富集测定金的最佳折衷工作条件。在尚未采用内标的情况下,标准曲线仍有较好的线性关系。尤本法检测限较低(C_L<0.1g/T),整个富集测定操作简便快速。这为常规电弧光谱分析迅速有效地富集测定样品中的微量金探索出一可取新途径。
This method uses a special carbon electrode gold-rich test solution to be enriched, under normal spectral analysis spectroscopy analysis. Through the selection of the main factors such as electrode traits and speed, the amount of concentrate, the current intensity and the time of photo-detection, the best trade-off conditions for the determination of gold enrichment were preliminarily determined. In the case of not using the internal standard, the standard curve is still a good linear relationship. Ewing method detection limit is low (C_L <0.1g / T), the enrichment assay is simple and fast. This is a promising new route for enrichment of trace amounts of gold in the assay sample by conventional arc spectroscopy.