A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common io...A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.展开更多
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A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.
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.
