[PDF] Top 20 Simultaneous Determination of Dopamine, Ascorbic Acid and Uric Acid at Poly(Patton and Reeder’s) Modified Carbon Paste Electrode

... the poly (PR) modified CPE also possessed strongly electrocatalytic action for UA ...the poly(PR) coated electrode, only could the oxidation peak be observed in pH ...the poly(PR) ... See full document

... the simultaneous determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA) using Tiron polymer film modified on glassy carbon ...The ... See full document

... Similarly, ascorbic acid (AA) functions as a redox cofactor and catalyst in a broad array of biochemi- cal reactions and ...[5]. Uric acid (UA) is produced by xanthine oxidase from xanthine ... See full document

... the modified electrode in mixture of EP, DA, AA and ...the modified electrode exhibited high current signals and well-defined three oxidation peaks for AA, DA/EP and UA at 50, 230 and 380 mV, ... See full document

... three electrode electrochemical cell. The electrode system contained a carbon paste as working electrode ...counter electrode and saturated calomel electrode as reference ... See full document

... chemically modified electrodes for the electrochemical determination of ...as dopamine (DA), is one of the most significant catecholamines and is an important neurotransmitter in the mammalian ... See full document

... working electrode, it is necessary that a simple, fast, selective and sensitive method can be ...for simultaneous determination of DA, AA and UA by electrochemical method have been ...nanoparticles, ... See full document

... phthalocyanine modified carbon paste electrode (CTAB/Fe (II) ONTPc/CPE) was fabricated and was applied to simultaneous determination of ascorbic acid, ... See full document

... Simultaneous determination of dopamine (DA), ascorbic acid (AA) and uric acid (UA) has received a considerable attention [26] and plays a vital role in the process of ... See full document

... selective determination in a ternary mixtures is of great importance in electrochemical ...unmodified electrode and (b) 5% L-cysteine Sonogel-Carbon modified electrode in serum ... See full document

... the simultaneous determination of dopamine in presence of ascorbic acid at electropolymer modified carbon paste electrode ...used poly (neutral red) ... See full document

... It can be seen from Fig. 5B that the peak current of AA decreases with increasing pH from 4.0; and that of UA increases with increasing pH value until it reaches 5.0, and then it decreases when the pH increases further. ... See full document

... in dopamine hydrochloride injection [21, ...applying modified electrode for the determination of DA in real sample [6, 19] such as human urine [9, ...the determination of DA by using ... See full document

... modified carbon paste electrode (CPE) and was developed for the simultaneous determination of dopamine, uric acid and folic acid at physiological pH ... See full document

... and poly (VA) film modified CPE was recorded as shown in ...condition poly (VA) modified CPE (dashed line) gave birth to significantly enhanced peak current and more qusireversible electron ... See full document

... L(+)-ascorbic acid (AA, vitamin C) is the main antioxidant found in both animals and ...28]. Uric acid (UA) and other oxypurines are the main final products of purine metabolism in the human ... See full document

... The Fig. 4b shows the voltammogram for solution containing mixture of 20µΜ DA, 100µΜ AA and 50µM UA in 0.2M phosphate buffer system of pH 7.4. The bare CPE showed only one broad anodic peak without giving reduction peak ... See full document

... nitric acid was an oxidizer and mixed in an appropriate ratio to form a tin nitrate solution, to this solution ...citric acid which acts as fuel and ... See full document

... that poly (alanine) MCPE exhibits highly electrocatalytic activity towards the oxidation of dopamine and ascorbic ...of poly (alanine) MCPE. The modified electrode has a good ... See full document

... glassy carbon electrode (GCE) modified with the poly(alizarin yellow R) (PAYR) film was prepared by an electropolymerization ...method. Ascorbic acid (AA), dopamine (DA) ... See full document