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Catalytic effect of CTAB on the interaction of dipeptide glycyl-tyrosine (Gly-Tyr) with ninhydrin
Joint Authors
Ikram, Muhammad Arshad
Kabir al-Din
Kumar, Dileep
Source
Journal of Saudi Chemical Society
Issue
Vol. 18, Issue 5 (31 Dec. 2014), pp.520-527, 8 p.
Publisher
Publication Date
2014-12-31
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Topics
Abstract EN
The effect of cationic micelles of cetyltrimethylammonium bromide (CTAB) on the interaction of dipeptide glycyl-tyrosine (Gly-Tyr) with ninhydrin under varying conditions has been studied spectrophotometrically at 70 °C and pH 5.0.
The reaction followed first-and fractionalorder kinetics with respect to [Gly-Tyr] and [ninhydrin], respectively.
Increase in total concentration of CTAB from 0 to 70 * 10¯3 mol dm¯3 resulted in an increase in the pseudo-first-order rate constant (kw) by a factor of ca.
3.
Quantitative kinetic analysis of kw-[CTAB] data was performed on the basis of pseudo-phase model of the micelles (proposed by Menger and Portnoy and developed by Bunton) and Piszkiewicz model.
A possible mechanism has been proposed and the kinetic data have been used to evaluate the micellar binding constants KS (268 mol¯1 dm3 for Gly-Tyr) and KN (64 mol¯1 dm¯3 for ninhydrin).
American Psychological Association (APA)
Ikram, Muhammad Arshad& Kumar, Dileep& Kabir al-Din. 2014. Catalytic effect of CTAB on the interaction of dipeptide glycyl-tyrosine (Gly-Tyr) with ninhydrin. Journal of Saudi Chemical Society،Vol. 18, no. 5, pp.520-527.
https://search.emarefa.net/detail/BIM-412859
Modern Language Association (MLA)
Kumar, Dileep…[et al.]. Catalytic effect of CTAB on the interaction of dipeptide glycyl-tyrosine (Gly-Tyr) with ninhydrin. Journal of Saudi Chemical Society Vol. 18, no. 5 (2014), pp.520-527.
https://search.emarefa.net/detail/BIM-412859
American Medical Association (AMA)
Ikram, Muhammad Arshad& Kumar, Dileep& Kabir al-Din. Catalytic effect of CTAB on the interaction of dipeptide glycyl-tyrosine (Gly-Tyr) with ninhydrin. Journal of Saudi Chemical Society. 2014. Vol. 18, no. 5, pp.520-527.
https://search.emarefa.net/detail/BIM-412859
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 527
Record ID
BIM-412859