کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1244218 | 969683 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direct electrochemistry and electrocatalysis of hemoglobin in gelatine film modified glassy carbon electrode
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Direct electrochemical and electrocatalytic behavior of hemoglobin (Hb) immobilized on glass carbon electrode (GCE) containing gelatine (Gel) films was investigated. The characteristics of Hb/Gel film modified GC electrode were performed by using SEM microscopy, UV-vis spectroscopy and electrochemical methods. The immobilized Hb showed a couple of quasi-reversible redox peak with a formal potential of â0.38Â V (versus SCE) in 0.1Â M pH 7.0 PBS. The formal potential changed linearly from pH 4.03 to 8.41 with a slope value of â52.0Â mV pHâ1, which suggested that a proton transfer was accompanied with each electron transfer (ET) in the electrochemical reaction. The Hb/gelatine/GCE displayed a rapid amperometric response to the reduction of H2O2 and nitrite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 71, Issue 2, 15 February 2007, Pages 550-554
Journal: Talanta - Volume 71, Issue 2, 15 February 2007, Pages 550-554
نویسندگان
Hui Yao, Nan Li, Jin-Zhong Xu, Jun-Jie Zhu,