在二乙醇胺、氢氧化钠底液中,Cu只产生一个良好的络合物吸附还原波。波型具有基线长、平、半波峰宽较小,电容电流小,灵敏度高等特点,与氨底液比较,具有一些特殊的优点。本法对2％以下的Cu进行测定,结果十分满意。Cu含量大于2％,可采取减少称量或稀释办法进行,同样可以得到准确的分析结果。Se、Cr、Sn、Mn、Mo、Fe等元素在拟 In diethanolamine and sodium hydroxide, Cu only produced a good complex adsorption reduction wave. Wave pattern with a long baseline, flat, half-wave peak width is small, the capacitor current is small, high sensitivity, compared with the ammonia solution has some special advantages. The law of 2% or less Cu determination, the results are very satisfied. Cu content of more than 2%, can be taken to reduce the weighing or dilution method, the same can get accurate analysis results. Se, Cr, Sn, Mn, Mo, Fe and other elements in the proposed