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本文在面浓度磷酸介质中,可允许20毫克的铁、锰存在,不用分离直接采用EDTA-H_2O_2比色法,测定高含量钴,方法方便、快速。
In this paper, the surface concentration of phosphoric acid medium, allowing 20 mg of iron and manganese exist, without separation directly using EDTA-H_2O_2 colorimetric determination of high levels of cobalt, the method is convenient and fast.