【摘要】 本文提出了 Co( ) -硫氰酸钾 -结晶紫 -聚乙烯醇三元配合物体系光度法测定 Co( )的新方法。该方法灵敏度 ε=3.18× 10 5L·mol-1· cm-1,选择性好 ,精密度高 ,用于水中痕量钴的测定。结果令人满意更多还原

【Abstract】 The spectrophotometric determination of trace cobalt with the ternary complex system of Co(Ⅱ)\|SCN -\|crystal violet\|polyethyleneglycol has been introduced.The method has higher selectivity and good precision.The method has been used to determine trace cobalt in water with satisfactory result.更多还原