Impregnation and Characterization of High Performance Extraction Columns for Separation of Metal Ions
(2013) In Solvent Extraction and Ion Exchange 31(6). p.668-682- Abstract
- Impregnation behaviors of reverse-phase silica materials and C18-silica HPLC columns were studied using di-(2-ethylhexyl)phosphoric acid (HDEHP) as a model extractant. Initially, the adsorption efficiency of the ligand on different types of bulk particles was investigated using various concentration of HDEHP in different composition of methanol/water mixtures based on a batch technique. Subsequently, impregnation of HPLC columns was performed using the dynamic flow-through technique. The experimental data fitted well to the Langmuir model and the adsorption isotherms from the flow-through experiment were used to prepare extraction columns of different ligand densities. Finally, the impregnated columns were characterized and validated... (More)
- Impregnation behaviors of reverse-phase silica materials and C18-silica HPLC columns were studied using di-(2-ethylhexyl)phosphoric acid (HDEHP) as a model extractant. Initially, the adsorption efficiency of the ligand on different types of bulk particles was investigated using various concentration of HDEHP in different composition of methanol/water mixtures based on a batch technique. Subsequently, impregnation of HPLC columns was performed using the dynamic flow-through technique. The experimental data fitted well to the Langmuir model and the adsorption isotherms from the flow-through experiment were used to prepare extraction columns of different ligand densities. Finally, the impregnated columns were characterized and validated through HPLC separation of the lanthanides. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4106343
- author
- Kifle, Dejene ; Wibetoe, Grethe ; Froseth, Morten and Bigelius, Jonas LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Batch impregnation, flow through impregnation, adsorption isotherm, ligand density, di-(2-ethylhexyl) phosphoric acid, lanthanides
- in
- Solvent Extraction and Ion Exchange
- volume
- 31
- issue
- 6
- pages
- 668 - 682
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000323998200008
- scopus:84884222116
- ISSN
- 0736-6299
- DOI
- 10.1080/07366299.2013.806737
- language
- English
- LU publication?
- yes
- id
- b50c1f4c-ed0e-41e4-ba6f-f5e9193fe308 (old id 4106343)
- date added to LUP
- 2016-04-01 12:51:46
- date last changed
- 2023-09-02 15:25:31
@article{b50c1f4c-ed0e-41e4-ba6f-f5e9193fe308,
abstract = {{Impregnation behaviors of reverse-phase silica materials and C18-silica HPLC columns were studied using di-(2-ethylhexyl)phosphoric acid (HDEHP) as a model extractant. Initially, the adsorption efficiency of the ligand on different types of bulk particles was investigated using various concentration of HDEHP in different composition of methanol/water mixtures based on a batch technique. Subsequently, impregnation of HPLC columns was performed using the dynamic flow-through technique. The experimental data fitted well to the Langmuir model and the adsorption isotherms from the flow-through experiment were used to prepare extraction columns of different ligand densities. Finally, the impregnated columns were characterized and validated through HPLC separation of the lanthanides.}},
author = {{Kifle, Dejene and Wibetoe, Grethe and Froseth, Morten and Bigelius, Jonas}},
issn = {{0736-6299}},
keywords = {{Batch impregnation; flow through impregnation; adsorption isotherm; ligand density; di-(2-ethylhexyl) phosphoric acid; lanthanides}},
language = {{eng}},
number = {{6}},
pages = {{668--682}},
publisher = {{Taylor & Francis}},
series = {{Solvent Extraction and Ion Exchange}},
title = {{Impregnation and Characterization of High Performance Extraction Columns for Separation of Metal Ions}},
url = {{http://dx.doi.org/10.1080/07366299.2013.806737}},
doi = {{10.1080/07366299.2013.806737}},
volume = {{31}},
year = {{2013}},
}