Ligand adsorption of adenine and adenosine on poly(vinyl chloride) bound cobalt(II)-carboxylated diaminoethyl complex
Küçük Resim Yok
Tarih
2003
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Ligand adsorption of adenine and adenosine has been studied by using cobalt(II)-poly(vinyl chloride) carboxylated diaminoethyl (PVC-CDAE) resin. Column runs were conducted to study the performance of the ligand exchanger. The adsorption of adenine and adenosine from solutions of different initial concentrations onto resin was measured using by breakthrough technique at 25 degreesC. The ligand concentration was chosen to be 0.0125-0.2 mmol l(-1). The characteristics of the adsorption process were investigated by using Scatchard plot analysis (q/C versus q). And the adsorption behaviour of these ligands on cobalt(II)-PVC-CDAE is expressed by the Langmuir and Freundlich isotherms. The adsorption data with respect to all ligands provide an excellent fit to the Freundlich isotherm, giving correlation coefficients in the range of 0.95-0.99 for the Freundlich isotherm. On the contrary, when the Langmuir isotherm model was applied to these data, a good lit was not obtained for the high ligand concentrations. (C) 2003 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
scatchard analysis, ligand binding, breakthrough curve, poly(vinyl chloride), adenine and adenosine
Kaynak
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
223
Sayı
45352
