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用悬汞电极阳极溶出伏安法,以硫酸铍为支持电解质,测定硫酸铍及氧化铍中的镉与铅。硫酸铍适宜浓度为0.1—0.4M,PH1—3.5。测定镉与铅的灵敏度分别为4.4×10~(-8)M及2.5×10~(-8)M。相对偏差在±3.5%以内。
Anodic stripping voltammetry with hanging mercury electrode and beryllium sulfate as supporting electrolyte were used to determine cadmium and lead in beryllium sulfate and beryllium oxide. The suitable concentration of beryllium sulfate is 0.1-0.4M, PH1-3.5. The sensitivity of determination of cadmium and lead were 4.4 × 10 -8 M and 2.5 × 10 -8 M, respectively. Relative deviation within ± 3.5%.