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以汞膜电极与国产883型极谱仪或丹麦P04型极谱仪连用,采用阳极溶出伏安法可成功地同时测定各种有色轻金属中的重金属元素Cu,Pb、Cd、Zn。在长期的配合生产实际中得到了满意的结果。该法装置简单,操作简便。 (一)样品的处理 1.高纯钙样品:称取0.2克样品置于石英皿中,加入10毫升水,2毫升盐酸,滴2滴过氧化氢溶液,于电热板上煮沸,并蒸至体积约为0.5毫升。取下冷却,用水稀释,备用。 2.高纯镁、精镁样品:称取0.5克样品置于
The mercury electrode was used in combination with a domestic 883 polarography or a Danish P04 polarography instrument. Anodic stripping voltammetry was used to determine the contents of heavy metals Cu, Pb, Cd and Zn in various colored light metals simultaneously. In the long-term with the actual production has been satisfied with the results. The method device is simple, easy to operate. (A) sample processing 1. High-purity calcium samples: Weigh 0.2 g sample placed in a quartz dish, add 10 ml of water, 2 ml of hydrochloric acid, drops 2 drops of hydrogen peroxide solution, boiled on a hot plate and steamed The volume is about 0.5 ml. Remove the cooling, diluted with water, spare. 2. High-purity magnesium, refined magnesium samples: Weigh 0.5 grams of sample placed