Kinetic and mechanism studies of the reaction between L-tyrosine and iodine on the basis of UV-Vis spectrophotometric method
Yazarlar (1)
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, İran
Makale Türü Açık Erişim Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale)
Dergi Adı Asian Journal of Biochemistry
Dergi ISSN 1815-9923 Scopus Dergi
Dergi Tarandığı Indeksler
Makale Dili İngilizce Basım Tarihi 01-2008
Cilt / Sayı / Sayfa 3 / 5 / 290–296 DOI 10.3923/ajb.2008.290.296
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-54849434232&partnerID=MN8TOARS
Özet
This study concern to the kinetic and mechanism studies of interaction between L-tyrosine (L-T) and iodine upon UV-Vis spectrophotometric measurements. The results showed that the reaction is first order respect to each reactant by using the initial rate method. Also, the rate constant of the reaction at two different temperature 25.0 and 15.0°C were determined. Then the resulting activation functions such as Ea, ΔH#, ΔG#, ΔS# and frequency factor, A, were calculated. The resulted values at 25.0°C are: Ea = 36.82 kJ mol-1, A = 2.032x106 L mol-1 sec-1, ΔG°# = 73.17 kJ mol-1, ΔH°# = 34.34 kJ mol-1 and ΔS° # = -132.4 J mol-1 K-1. © 2008 Academic Journals Inc.
Anahtar Kelimeler
Activation function | Arrhenious parametersL-Tyrosine | Arrhevious parameters | Iodine | L-Tyrosine | Rate constant