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铅（Ph）和镉（Cd）是评价不锈钢餐具卫生质量的重要指标。其含量测定用双硫腙分光光度法及原于吸收光谱法等。本文采用电位溶出法在同一体系中同时测定Ph和Cd，检出限分别为0．0015、0．0025μg，回收率在93％－104．6％，变异系数分别为4．27％、0．57％。具有操作简便快捷，
Lead (Ph) and cadmium (Cd) are important indicators to evaluate the hygienic quality of stainless steel tableware. Determination of its content with dithizone spectrophotometry and the original absorption spectroscopy. In this paper, the simultaneous determination of Ph and Cd in the same system by potentiometric stripping was carried out. The detection limits were 0.0015 and 0.0025 μg, respectively. The recoveries ranged from 93% to 104.6%. The coefficients of variation were 4.27% and 0. 57%. With easy operation,