论文部分内容阅读
编辑同志:在用丁二酮肟分光光度法测定高铜铝合金及铝合金中镍时,由于铜的干扰,往往使分析不能顺利进行。为此,常常采用电解或溶剂萃取分离法来消除铜的干扰。近年来,有些资料介绍使用纯铁丝或纯铝片在微酸性(非氧化性酸)溶液中还原铜,使 Cu~(2+)还原成 Cu~0沉淀析出,以达分离目的。此种分离方法虽然以前有过报导,但在实际中应用较少,其原因估计是此法分
Editor comrades: diazoxide oxime spectrophotometric determination of high-copper aluminum and nickel in the aluminum alloy, due to the interference of copper, often make the analysis can not be carried out smoothly. For this reason, electrolytic or solvent extraction separation is often used to eliminate copper interference. In recent years, some of the information on the use of pure wire or pure aluminum film in a slightly acidic (non-oxidizing acid) solution of copper reduction, Cu ~ (2 +) reduced to Cu ~ 0 precipitation, for the purpose of separation. Although this method has been previously reported, but in practice less used, the reason is estimated that this method