کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
740107 1462097 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A “green” cellulose paper based glucose amperometric biosensor
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A “green” cellulose paper based glucose amperometric biosensor
چکیده انگلیسی

A simple low cost “green” biosensor configuration comprising of a hydrophilic cellulose paper disk with immobilised glucose oxidase (GOx) via adsorption step, placed on top of a screen printed carbon electrode (SPCE) was developed. This biosensor configuration allowed for low volume of glucose sample (5 μL) to be analysed. Cellulose paper was also used as the pre-storage reagent matrix for 0.1 M phosphate buffer solution (PBS, pH 7.0) and 10 mM soluble ferrocene monocarboxylic acid mediator. This biosensor exhibited a linear dynamic calibration range of 1 to 5 mM glucose (r2 = 0.971), with a limit of detection of 0.18 mM and retained 98% of its signal after a period of four months. In addition, its performance was demonstrated in the analysis of selected commercial soda beverages. The glucose concentrations obtained by the biosensor corroborated well with an independent high performance liquid chromatographic (HPLC) method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 193, 31 March 2014, Pages 536–541
نویسندگان
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