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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Teixeira, Ja
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Publications (6/6 displayed)
- 2021Zn-Fe Flower-like nanoparticles growth by gas condensationcitations
- 2012(Liquid plus liquid) equilibria of polymer-salt aqueous two-phase systems for laccase partitioning: UCON 50-HB-5100 with potassium citrate and (sodium or potassium) formate at 23 degrees Ccitations
- 2010Liquid-Liquid Equilibria of UCON plus (Sodium or Potassium) Phosphate Salt Aqueous Two-Phase Systems at 23 degrees Ccitations
- 2008"On the Collander equation": Protein partitioning in polymer/polymer aqueous two-phase systemscitations
- 2008Delta G(CH2) as solvent descriptor in polymer/polymer aqueous two-phase systemscitations
- 2008Delta G(CH2) in PEG-salt and Ucon-salt aqueous two-phase systemscitations
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article
Liquid-Liquid Equilibria of UCON plus (Sodium or Potassium) Phosphate Salt Aqueous Two-Phase Systems at 23 degrees C
Abstract
Six phase diagrams for UCON-phosphate salt aqueous two-phase systems (ATPSs), at 23 degrees C, are presented. The ATPSs were obtained combining UCON (a random copolymer of 50 % ethylene oxide and 50 % propylene oxide) and it phosphate salt (KH(2)PO(4), K(2)HPO(4), potassium phosphate buffer pH = 7, NaH(2)PO4, Na(2)HPO(4), and sodium phosphate buffer pH = 7). Among the salts used, Na(2)HPO(4) proved to be the most effective in ATPS formation, providing the greatest heterogeneous region in the phase diagram. The previous established relation between the anion valence and the concentration needed to form a biphasic system wits confirmed: higher valence requires lower concentration. Na(+) salts require, in all cases, lower concentration to form ATPSs than the corresponding K(+) salts. The size of the heterogeneous region in the phase diagrams increases with in increase of the pH value of the salt used in ATPS preparation.