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在卫生检验中,镍样品的前处理常用玻璃器皿进行消解,但据资料报导,玻璃器皿对镍的氯化物有吸附作用,镍浓度低时精密度不好。本文用脉冲极谱法对滤膜中镍样,在聚四氟乙烯杯、石英坩
In the sanitary inspection, pre-treatment of nickel samples is commonly used for digestion of glassware. However, it is reported that glassware has an adsorption effect on nickel chloride, and its precision is poor when the nickel concentration is low. This paper uses pulsed polarography on the nickel membrane in the filter, in a Teflon cup, quartz crucible