کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
13448658 | 1843836 | 2020 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel electrochemical sensor based on graphene nanosheets and ethyl 2-(4-ferrocenyl-[1,2,3]triazol-1-yl) acetate for electrocatalytic oxidation of cysteine and tyrosine
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel electrochemical sensor based on graphene nanosheets and ethyl 2-(4-ferrocenyl-[1,2,3]triazol-1-yl) acetate for electrocatalytic oxidation of cysteine and tyrosine A novel electrochemical sensor based on graphene nanosheets and ethyl 2-(4-ferrocenyl-[1,2,3]triazol-1-yl) acetate for electrocatalytic oxidation of cysteine and tyrosine](/preview/png/13448658.png)
چکیده انگلیسی
A novel electrochemical sensor based on ethyl 2-(4-ferrocenyl-[1,2,3]triazol-1-yl) acetate (EFTA) and graphene has been developed for electrocatalytic oxidation and determination of cysteine. The electrochemical behavior of cysteine at the EFTAGCPE was investigated by voltammetric techniques. The EFTAGCPE showed efficient electrocatalytic activity for the oxidation of cysteine in 0.1â¯M phosphate buffer solution (pH 7.0). The oxidation overpotential of cysteine decreased significantly compared with the bare electrode and its oxidation peak currents increased dramatically at EFTAGCPE. The potential utility of the sensor was demonstrated by applying it to the analytical determination of cysteine concentration. The results showed that the electrocatalytic current increased linearly with the cysteine concentration in the range of 4.0-2300.0â¯Î¼M and the detection limit was 0.9â¯Î¼M. Also the prepared modified electrode exhibits a very good resolution between the voltammetric peaks of cysteine and tyrosine. The sensor was applied to determine cysteine and tyrosine in human fluids samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 152, February 2020, 107302
Journal: Measurement - Volume 152, February 2020, 107302
نویسندگان
Hadi Beitollahi, Mohammad Reza Ganjali, Parviz Norouzi, Kaveh Movlaee, Rahman Hosseinzadeh, Somayeh Tajik,