مشخصات پژوهش

عنوان	Electrocatalytic and selective determination of <scp>d</scp>‐penicillamine in the presence of tryptophan using a benzoylferrocene‐modified carbon nanotube paste electrode
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	D-penicillamine; tryptophan; electrocatalysis; carbon nanotube paste electrode
چکیده	Two amino acids – D-penicillamine (D-PA) and tryptophan (TRP) – could be simultaneously determined in an aqueous solution (pH 7.0) using a novel benzoylferrocene-modified carbon nanotube paste electrode. The results indicate that the electrode is efficient in terms of its electrocatalytic activity for the oxidation of D-PA, leading to an overpotential reduction by more than 155 mV. Using square wave voltammetry, measurement of D-PA and TRP in one mixture could be done independently from each other with a potential difference of about 205 mV. The proposed electrochemical sensor exhibited a linear calibration plot ranging from 1.0 106 to 8.0 104 M with a detection limit of 1.3 107 M for D-PA.
پژوهشگران	رحمان حسین زاده (نفر چهارم)، هادی بیت اللهی (نفر سوم)، محمد علی طاهر (نفر دوم)، فاطمه میررحیمی (نفر اول)