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在磷酸介质中,用732阳离子交换树脂交换吸附Co-5-Cl-PADAB络合物,用双波长光度法测量吸光度,可在不分离主体元素钨的条件了测定钴。
In phosphate medium, Co-5-Cl-PADAB complex was exchanged with 732 cation exchange resin, and the absorbance was measured by dual wavelength spectrophotometry to determine cobalt without separating the tungsten as the main element.