[PDF] Top 20 Separation of Ascorbic Acid, Dopamine and Uric Acid by Acetone/Water Modified Carbon Paste Electrode: A Cyclic Voltammetric Study

... peak separation of DA-AA was 120mV and DA-UA was 125mV at ACMCPE showed the selective determination of DA in the presence of AA and acts as sensor for the detection of DA in low ... See full document

... the electrode consciously enhanced the redox peak current of DA and could separately determine ...The separation of oxidation peak potential is of DA-AA and UA- DA was 163mV and 125mV respectively by ... See full document

... film modified CPE was recorded as shown in ...(VA) modified CPE (dashed line) gave birth to significantly enhanced peak current and more qusireversible electron transfer process to DA with slight shift in ... See full document

... to study the electrochemical response of an interesting neurotransmitter DA, CTABMCPE strongly enhanced both anodic and cathodic peak current of ...overlapped voltammetric responses of DA with AA and UA, ... See full document

... of dopamine undergoes at 180 mV and that of uric acid at 308 mV at the ...of dopamine - epinephrine and uric acid - 5HT can’t resolve by using this modified ... See full document

... scan cyclic voltammetry ( FSCV) [11-14] Ewing and Co-worker [15-17] adopt advanced capillary electrophoretic (CE) separation neurotransmmiter in vivo and determination neurotransmitter in single cell ... See full document

... this electrode, which results in an overlapped voltammetric ...stearic acid [16,17] calix compound [18] guaiacol derivatives [19] zeolite [20] and clay ...using carbon nanotubes [23] ... See full document

... simultaneous study was carried out in the potential range form -200 to 700mV ...peak separation between DA and AA was 130mV, which was very large when comparing to peak separation occurred by ... See full document

... simultaneous study was carried out in the potential range from 0 to 800 mV ...peak separation between DA and AA was 163 mV which was very large when comparing to peak separation occurred by ... See full document

... as uric acid (UA) and ascorbic acid ...a water soluble vitamin, and is a compound that takes part in many important life ...overlapping voltammetric response [8-10]. The ... See full document

... CP modified with multi-walled carbon nanotubes (MWCNTs) or graphene has been investigated for detecting biological samples [43, ...newly-prepared modified electrode was transferred to pH ... See full document

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

... a carbon paste electrode incorporating polyethylene glycol (PEG) - modified glucose oxidase exhibits a higher glucose response than an electrode incorporating native glucose ... See full document

... working electrode, it is necessary that a simple, fast, selective and sensitive method can be ...nanoparticles, carbon pastes and glassy carbon electrodes have been extensively used in the ... See full document

... Losartan modified carbon paste electrode was able to show high sensitivity for voltammetric detection of ...the modified electrode and the reproducibility of the ... See full document

... Typical cyclic voltammograms of 2 × 10 –5 M of AA obtained with Silica gel_MWCNTs/CPE in acetate buffer (pH = ...the modified electrode presents the electrocatalytic activity to ... See full document

... the cyclic voltammograms of ...pTSA) modified electrode was carefully rinsed with water, then stored in air and was prepared to use ... 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 presence of ... See full document

... and Dopamine (DA) were obtained from Himedia chemical company and of analytical grade used without further ...acetic acid were used for increasing and decreasing the pH of the ...The water used in ... 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