发射光谱法测定高纯银中微量金、铂、钯、铑、铱、锑、铅、铋、铁、铜、镍、铬、铝和锌

DETERMINATION OF TRACE Au, Pt, Pd, Rh, Ir, Sb, Ph, Bi, Fe, Cu,Ni,Cr,Al AND Zn IN PURE SILVER BY AES

本文研究了贵金属标准溶液除氯离子的有关问题，解决了高纯硝酸银中贵金属等杂质元素的标样配制，以硝酸银直接压样于普通电极中直流电弧激发，可测定９９．０～９９．９９％的高纯银，该方法简便、快速、准确。

A fast speed precise method is proposed for the direct determination of 14 trace in 99. 0-99. 993% silver by direct-current arc AES, with chloride ion deprived of the precious metals standard solution most of the matrix interference can be eliminate. The recovery for the method is 91. 5-110% and the realive standard deviatio.n is 6. 0-14. 2%.