NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.48A [2009] >
IJC-A Vol.48A(05) [May 2009] >

Title: Determination of dynamic dissociation constant of chromium-poly(N-vinyl­pyrro­lidone) complex by the radiotracer technique
Authors: Nayak, Dalia
Banerjee, Anupam
Ghosh, Kingshuk
Das, Ayan
Lahiri, Susanta
Keywords: Solution chemistry
Dissociation constants
Binding ability
Radiotracer technique
Issue Date: May-2009
Publisher: CSIR
Abstract: The binding ability of polyvinylpyrrolidone (PVP) with chromium in its different oxidation states has been investigated. The complexation of PVP towards Cr(III) and Cr(VI) labeled with 51Cr radionuclide has been studied with the dialysis technique. The stability of the complexes has been examined by measuring the dynamic dissociation constant from the slope of the plot of ln{Cr(VI)/(III)-PVP} versus time. It has been observed that both Cr(VI)-PVP and Cr(III)-PVP complexes are most stable at pH 7. However, the Cr(III)-PVP complex is more stable than the Cr(VI)-PVP complex at all pH values. This study shows the comparative stability of the complexes of the two different species of chromium with PVP, which may be useful in radiopharmaceutical sciences.
Page(s): 672-675
ISSN: 0376-4710
Source:IJC-A Vol.48A(05) [May 2009]

Files in This Item:

File Description SizeFormat
IJCA 48A(5) 672-675.pdf104.19 kBAdobe PDFView/Open
 Current Page Visits: 1023 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 168064 since 01-Sep-2015  Last updated on 29-Jun-2016Webmaster: