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本工作在文献的基础上,拟定了原子吸收法测定硫酸镍中锌、铅的条件。加入标准回收试验及样品测定结果证明,本法的准确度和精密度均能满足质量控制的要求。试验部分一仪器及主要试剂 WYX-401型原子吸收分光光度计(沈阳分析仪器厂产);锌、铅空心阴极灯(东德AAS-1原子吸收分光光度计附件)。锌、铅标准溶液均为1mg·ml~(-1),分别用少量6N硝酸溶解高纯金属锌、铅而得。氯化钡溶液:40%,用双硫腙-四氯化碳萃至有
This work is based on the literature, developed by atomic absorption method for the determination of nickel sulfate nickel, lead conditions. By adding standard recovery test and sample measurement results, the accuracy and precision of this method can meet the requirements of quality control. Experimental part of an instrument and the main reagent WYX-401 atomic absorption spectrophotometer (Shenyang Analytical Instrument Factory production); zinc, lead hollow cathode lamp (East Germany AAS-1 atomic absorption spectrophotometer annex). Zinc and lead standard solutions were 1mg · ml -1, respectively, with a small amount of 6N nitric acid dissolved high-purity metallic zinc, lead derived. Barium chloride solution: 40%, extracted with dithizone - carbon tetrachloride