این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Analytical and Bioanalytical Electrochemistry، جلد ۱۴، شماره ۸، صفحات ۷۸۹-۸۰۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Differential Pulse Voltammetric Determination of Folic Acid in the Presence of Ascorbic Acid using A Glassy Carbon Electrode Modified with Reduced Graphene Oxide
چکیده انگلیسی مقاله Reduced graphene oxide was estimated for the modification of a glassy carbon electrode. The fabricated electrode was employed for folic acid determination in 0.1 M KCl solution (pH 14) using cyclic, linear sweep, differential pulse voltammetric and chronoamperometric techniques. The modified sensor exhibits a high electro-catalytic activity towards FA oxidation in the presence of ascorbic acid. The anodic peak current (IP) of FA increased linearly with an increase in pH (12.6–14) and scan rate (20–500 mV/s) at the ERGO/GCE. Good linearity was obtained between IP and FA concentrations (3.01–7.23 µM) with the detection (LOD) and quantification (LOQ) limits are 4.68 and 15.6 nM, respectively. Under diffusion control, the diffusion coefficient was estimated to be 2.88×10−6 cm2/s at the ERGO/GCE. The fabricated sensor gives high selectivity, good sensitivity and excellent reproducibility. Thus, the proposed method could be applied to detect FA in pharmaceutical formulations and urine samples.
کلیدواژه‌های انگلیسی مقاله Folic acid,Ascorbic acid,Modified GC electrode,Reduced graphene oxide,Differential pulse voltammetry,chronoamperometry
نویسندگان مقاله Mohamed Abdel-Sabour |
Faculty of Science, Chemistry Department, South Valley University, Qena, 83523, Egypt

Ahmed M. Ahmed M. Abo-Bakr |
Faculty of Science, Chemistry Department, South Valley University, Qena, 83523, Egypt

Arafat Toghan |
College of Science, Chemistry Department, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, KSA

نشانی اینترنتی https://www.abechem.com/article_254436_848d7a2b78d89a7c25d3fb8ffdeba125.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات