1996
DOI: 10.1016/0003-2670(95)00596-x
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Determination of rare earth elements by ion chromatography. Separation procedure optimization

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Cited by 49 publications
(19 citation statements)
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“…In column experiments, 96 ± 4% of lanthanum could be desorbed from Pseudomonas aeruginosa using 0.1 mol L −1 EDTA [17]. Oxalic and diglycolic acids are mainly used in chromatography for rare earth elements separation [18,19].…”
Section: Desorption Of An Individual Metal Systemmentioning
confidence: 99%
“…In column experiments, 96 ± 4% of lanthanum could be desorbed from Pseudomonas aeruginosa using 0.1 mol L −1 EDTA [17]. Oxalic and diglycolic acids are mainly used in chromatography for rare earth elements separation [18,19].…”
Section: Desorption Of An Individual Metal Systemmentioning
confidence: 99%
“…25 Interesting results have been obtained for IonPac CS5 ionexchangers having both negatively and positively charged microbeads of latex on the surface of the core particle, with the simultaneous separation of HGeO3 -and Sn 2+ being achieved using 0.15 M H2SO4-0.05 M Na2SO4 as eluent. 26 The lanthanides and transition metals can also be separated 19,[27][28][29][30] on the IonPac CS5 column either as cations using a cation-exchange mechanism or as complex anions using an anion-exchange mechanism, with the final mechanism being dependent on the concentration of complexing acid (oxalic, dipicolinic, diglycolic) in the eluent. There are two important observations from this system.…”
Section: ·1 Agglomerated Ion-exchangersmentioning
confidence: 99%
“…3) is opposite to that observed under conditions of cationexchange and allows more possibilities for variation of separation selectivity. 19,27 Second, the separation of lanthanides by the anion-exchange mechanism on the mixed-functionality IonPac CS5 ion-exchange column was the same as that for the anion-exchange column IonPac AS5 when used with the same eluent system. This implies that the presence of excess sulfonate groups (150 µequiv/col for sulfonate groups compared to 70 µequiv/col for quaternary ammonium groups) on the IonPac CS5 does not influence the separation selectivity of lanthanides and their retention is also similar to that on the IonPac AS5 having a capacity of only 20 µequiv/col and an outer layer of anion-exchange latex particles.…”
Section: ·1 Agglomerated Ion-exchangersmentioning
confidence: 99%
“…Among the many purification methods for rare earth elements, [15][16][17][18] extraction chromatography using solvent impregnated resins has been used as a separation method of rare earth elements as to new types of ion selective exchangers based on the solvent extraction. [19][20][21][22][23][24] In extraction chromatography, an organic extractant is supported on a suitable porous substrate.…”
Section: Introductionmentioning
confidence: 99%