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本工作用火焰原子吸收光谱法,不分离铜直接测定铅的含量。使方法简化,并提高了铅的回收率。1989年开始配合生产进行例行分析效果良好。此法操作简便,缩短分析时间,节约试剂。分析标样得到满意的结果。试验部分一试剂与仪器铅标准储备液:金属铅(纯度99.99%)1.0000g于250ml收口烧杯中,加入HNO_3(1+3)20ml微热溶解,冷却,转入1000ml量瓶中,加水稀释至刻度。此液Pb 1mg·ml~(-1)。工作溶液由储备液用时配制。 WFD-Y_2型原子吸收分光光度计铅空心阴极灯(北京有色金属研究院产) 二仪器工作参数
This work uses flame atomic absorption spectrometry, direct determination of lead content without separation of copper. Make the method simplified, and improve the lead recovery rate. 1989 began with the production of routine analysis of good results. This method is simple, shorten the analysis time, saving reagents. Analysis of standard samples to be satisfactory results. Test part of a reagent and equipment Lead standard stock solution: metal lead (purity 99.99%) 1.0000g In a 250ml beaker, add HNO_3 (1 +3) 20ml slightly soluble, cooled, transferred to 1000ml volumetric flask, diluted with water to Scale. This solution Pb 1mg · ml ~ (-1). The working solution is prepared from the stock solution. WFD-Y_2 atomic absorption spectrophotometer lead hollow cathode lamp (Beijing Nonferrous Metal Research Institute) two instruments operating parameters