عنوان المقالة: CATIONIC MICELLAR EFFECT ON THE REACTION BETWEEN DIPEPTIDE GLYCYL-ALANINE (GLY-ALA) AND NINHYDRIN WITH AND WITHOUT SALT ADDITIVES
د. عادل أحمد محمد سعيد | Dr. Adel Ahmed Mohammed Seaad | 13949
نوع النشر
مجلة علمية
المؤلفون بالعربي
المؤلفون بالإنجليزي
Mohd. Akram, Adel A. M. Saeed and Kabir-ud-Din
الملخص الانجليزي
The effect of cationic conventional surfactants myristyltrimethylammonium bromide (TTAB), cetyltrimethylammonium bromide (CTAB), and cetylpyridinium chloride (CPC) on the interaction of dipeptide glycyl-alanine (Gly-Ala) with ninhydrin has been studied spectrophotometrically under different conditions. The reaction rates are higher in the presence of surfactants but the reaction order remains the same in both the media (first- and fractional-order with respect to [Gly-Ala] and [ninhydrin]). Quantitative kinetic analyses of kψ[surfactant] data were performed on the basis of pseudo-phase model of the micelles (proposed by Menger and Portnoy and developed by Bunton and Romsted) and Piszkiewicz model wherein the micellar binding constants KS for Gly-Ala and KN for ninhydrin with surfactant micelles were evaluated. The catalytic efficiency in TTAB increased by added electrolytes which had been discussed in detail
تاريخ النشر
11/11/2014
الناشر
Eur. Chem. Bull
رقم المجلد
3
رقم العدد
2
رابط DOI
http://dx.doi.org/10.17628/ecb.2014.3.119-126
الصفحات
119-126
رابط الملف
تحميل (0 مرات التحميل)
رابط خارجي
https://www.researchgate.net/publication/259289187_CATIONIC_MICELLAR_EFFECT_ON_THE_REACTION_BETWEEN_DIPEPTIDE_GLYCYL-ALANINE_GLY-ALA_AND_NINHYDRIN_WITH_AND_WITHOUT_SALT_ADDITIVES/comments
الكلمات المفتاحية
surfactant, dipeptide (Gly-Ala), ninhydrin, catalysis, micelles, TTAB, CTAB, CPC, salts
رجوع