The optimum conditions for extraction-chromatography using di-(l-methylheptyl) methylphosphonate resin to separate indium(Ⅲ) from its coexisting metal ions were studied. A procedure for extraction- chromatographic se...The optimum conditions for extraction-chromatography using di-(l-methylheptyl) methylphosphonate resin to separate indium(Ⅲ) from its coexisting metal ions were studied. A procedure for extraction- chromatographic separation and spectrophotometric determination of indium has been developed. This proce- dure gives more clear-cut separation and higher accuracy and reproducibility than ordinarily used separation by solvent extraction with butyl acetate. Besides, it can be used to separate and determine cadmium simultaneously.展开更多
The optimum conditions for the extraction-chromatography by using 2-ethylhexyl-2-ethylhexyl- phosphonate resin to separate scandium(Ⅲ)from large amounts of other metal ions were reported.A me- thod for the separation...The optimum conditions for the extraction-chromatography by using 2-ethylhexyl-2-ethylhexyl- phosphonate resin to separate scandium(Ⅲ)from large amounts of other metal ions were reported.A me- thod for the separation and determination of microamount of scandium has been developed.This method gives higher accuracy and reproducibility than solvent extraction with PMBP,especially,for the samples containing high content of titanium.Many shortcomings of other methods ever reported can be overcome by the present method.展开更多
文摘The optimum conditions for extraction-chromatography using di-(l-methylheptyl) methylphosphonate resin to separate indium(Ⅲ) from its coexisting metal ions were studied. A procedure for extraction- chromatographic separation and spectrophotometric determination of indium has been developed. This proce- dure gives more clear-cut separation and higher accuracy and reproducibility than ordinarily used separation by solvent extraction with butyl acetate. Besides, it can be used to separate and determine cadmium simultaneously.
文摘The optimum conditions for the extraction-chromatography by using 2-ethylhexyl-2-ethylhexyl- phosphonate resin to separate scandium(Ⅲ)from large amounts of other metal ions were reported.A me- thod for the separation and determination of microamount of scandium has been developed.This method gives higher accuracy and reproducibility than solvent extraction with PMBP,especially,for the samples containing high content of titanium.Many shortcomings of other methods ever reported can be overcome by the present method.
