[PDF] Top 20 Selective Determination of Dopamine and Uric Acid at Poly(acid red 176) Modified Glassy Carbon Electrode in the Presence of Ascorbic Acid

... 180, 176, and 356 mV between AA and DA, DA and UA, and AA and UA, are large enough to achieve the simultaneous detection of these three compounds in a homogeneous ...quantitative determination of DA in the ... See full document

... the modified electrode significantly improved and the response signal greatly ...the modified electrode, we can see that there is no reduction peak of UA, only its oxidation peak is observed, ... See full document

... paper, dopamine(DA) and uric acid(UA) were selectively determined using cyclic voltammetry and differential pulse voltammetry in the presence of ascorbic acid(AA) by a glass ... See full document

... Besides, uric acid (UA) is the primary end product of purine ...general, ascorbic acid (AA), an essential vitamin with a recommended daily intake of about 70 mg, coexists with DA and UA in ... See full document

... To investigate how dispersions of CNT and fCNT in PAA composites affected electrochemical properties of the composites-modified electrodes, CNT and fCNT dispersions in PAA aqueous solutions of different pH were ... See full document

... To prepare the Sonosol, the general procedure was as follows: 500µL of MTMOS and 100 µL of 0.2M HCl were mixed and then insonated during 5 s with the high-power ultrasonic processor, in this way the mixture is subjected ... See full document

... Quantitative determination of EP is a significant thing in developing nerve physiology, diagnosis and controlling medicine ...as ascorbic acid (AA) and dopamine ...a modified ... See full document

... that poly cresol red films were deposited on the surface of GC electrode by electro ...of poly cresol red at the GC electrode was in good agreement with previous findings, ... See full document

... of dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA) was developed, based on the poly(thionine) (PTH) modified glassy carbon ... See full document

... the electrode surface, which results in rather poor selectivity and sensitivity in addition, oxidation of DA at the electrode surface in the presence of AA results in a homogeneous catalytic ... See full document

... problems, modified electrodes are reported to have been developed for the single detection of AA, DA, and UA by modifying bare glassy carbon electrode (GCE), as well as platinum and gold ... See full document

... the electrode surface aside, mechanical strength in the presence of non-aqueous solvents, generation of non-toxic residues, stable response, low ohmic resistance, the potential to incorporate specific ... See full document

... The poly(PR) film at the electrode consciously enhanced the redox peak current of DA and could separately determine ...of selective, sensitive detection of DA in presence of other two species ... See full document

... The poly(CA)-modified electrode, which can be prepared by electropolymerization of CA, possesses an excellent electrocatalytic activity for APAP oxidation in neutral aqueous ...prepared ... See full document

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

... biosensor modified with several metal nanomaterial’s and QDs have been ...The modified TGA capped CdTe QDs based on electrode shows high selective detection of dopamine in the ... See full document

... simultaneous determination of AA, DA and UA at NDCS modified GCE, differential pulse voltammograms (DPVs) was carried out in their ...was modified to the surface of GCE, peak current is improved ... See full document

... calomel electrode (SCE) as the reference electrode, a platinum wire as the auxiliary electrode and a bare or modified glassy carbon electrode (GCE, 3 mm in diameter) as ... 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

... bare electrode is generally believed to be totally irreversible and requires high overpotential and also, no reproducible electrode response is obtained due to fouling of the electrode surface by the ... See full document