✦ LIBER ✦

Adsorption equilibrium of amino acids and antibiotics on non-ionic polymeric sorbents

✍ Scribed by Jae Wook Lee; Wang Geun Shim; Woo Chul Yang; Hee Moon

Publisher: Wiley (John Wiley & Sons)
Year: 2004
Tongue: English
Weight: 172 KB
Volume: 79
Category: Article
ISSN: 0268-2575
DOI: 10.1002/jctb.1006

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✦ Synopsis

Abstract

Adsorption equilibria of two amino acids (phenylalanine and tryptophan) and two antibiotics (penicillin G and cephalosporin C) from aqueous solutions onto non‐ionic polymeric sorbents (XAD‐4 and XAD‐16) were investigated under various experimental conditions such as pH, temperature and organic solvents. The assumption that amino acids adsorbed on polymeric sorbents were desorbed by competitive adsorption with organic solvent as a desorbate was verified using binary adsorption data for amino acids (phenylalanine and tryptophan) and organic solvents (isopropyl alcohol and methanol) on XAD‐4 and XAD‐16. The experimental data were predicted by using multicomponent adsorption models of an Extended‐Langmuir (EL) equation and an ideal adsorbed solution theory (IAST) based on the Langmuir equation as a single‐component isotherm. Copyright © 2004 Society of Chemical Industry

📜 SIMILAR VOLUMES

Adsorption of amino acids on porous poly

Adsorption of amino acids on porous polymeric adsorbents—I. Equilibrium

✍ D.Sean Grzegorczyk; Giorgio Carta 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 837 KB

The adsorption of the amino acids leucine, phenylalanine, and tryptophan and, for a comparison, of the antibiotic penicillin-G is studied for a range of porous polymeric adsorbents. The adsorbent materials investigated include both highly hydrophobic adsorbents as well as functionalized, more hydrop