کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
741644 894258 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Voltammetric detection of hydrogen peroxide in teeth whitening gels
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Voltammetric detection of hydrogen peroxide in teeth whitening gels
چکیده انگلیسی

A voltammetric method is proposed to detect hydrogen peroxide in teeth whitening gels. First the conductive properties of the gels are studied and discussed in absence and presence of an electrolyte. Current–potential curves recorded at a gold disc electrode show that hydrogen peroxide can be oxidized and reduced, especially in the oxidation the electrode surface condition plays an important role in the kinetics. The detection of hydrogen peroxide is done by calibration plots between, respectively, the reductive peak current and charge exchanged in the reduction peak as a function of hydrogen peroxide concentration. Also the long-term stability is investigated, which gave promising results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 124, Issue 2, 26 June 2007, Pages 317–322
نویسندگان
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