铋-碘化钾-二甲酚橙三元络合物体系光度法测定痕量铋

Spectrophotometric determination of trace bismuth with the ternary complex system of BiⅢ-KI-xylenol orange

提出了在聚乙烯醇存在下 ,Bi -碘化钾 -二甲酚橙三元络合物光度法测定Bi 的新方法。该法灵敏度高 (ε =6 0 6× 10 5) ,选择性好 ,精密度可靠 ,用于水中痕量铋的测定 ,结果满意。

In this paper the spectrophotometric determination of trace bismuth with the ternary complex of Bi*#-KI-xylenol orange has been developed. The method was high sensitive,good selective and precise The method has been used to determine trace bismuth in water with satisfactory results