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本文拟订了以锌-1,10-二氮菲-碘化钾体系测定工业废水中痕量锌的快速方法。锌浓度在2×10~(-3)～2μg·ml~(-1)之间波高与浓度呈线性关系。二十多种常见的阳离子和阴离子不干扰测定。方法可测定工业废水中PPb级的锌,回收率达95～98%。实验部分一仪器与试剂 JP-1型示波极谱仪、三电极系统(滴汞电极、饱和甘汞电极和铂电极)。 1,10-二氮菲(Phen)即邻菲啰啉,水溶液0.4%·0.4克Phen加0.5ml盐酸(1+1),加水溶解后稀释
In this paper, a rapid method for the determination of trace zinc in industrial wastewater using zinc-1,10-phenanthroline-potassium iodide was developed. The concentration of zinc in the range of 2 × 10 ~ (-3) ~ 2μg · ml ~ (-1) was linear. More than twenty common cations and anions do not interfere with the assay. The method can determine PPb grade zinc in industrial wastewater, and the recovery rate reaches 95-98%. Experimental part of an instrument and reagent JP-1 oscilloscope polarography, three-electrode system (drop mercury electrode, saturated calomel electrode and platinum electrode). 1,10-phenanthroline phenanthroline, 0.4% aqueous solution • 0.4 g Phen plus 0.5 ml hydrochloric acid (1 + 1), diluted with water and dissolved