The estraction of trace copper by crown ether and KI system was studied.Under the condition of pH<4.5,the copper was extracted into the solvent of l mol/L KI,3.5×10-3mol/L dibenzo-24-crown-8 and methyl iso-but...The estraction of trace copper by crown ether and KI system was studied.Under the condition of pH<4.5,the copper was extracted into the solvent of l mol/L KI,3.5×10-3mol/L dibenzo-24-crown-8 and methyl iso-butyl ketone.The extrated solution was determined by atomic absorption spectrometry.The method was characterized with high selectivety and sensitivity.The results of determined were accurate.展开更多
文摘The estraction of trace copper by crown ether and KI system was studied.Under the condition of pH<4.5,the copper was extracted into the solvent of l mol/L KI,3.5×10-3mol/L dibenzo-24-crown-8 and methyl iso-butyl ketone.The extrated solution was determined by atomic absorption spectrometry.The method was characterized with high selectivety and sensitivity.The results of determined were accurate.
