Abstract
We are presenting an electrochemical sensor for the simultaneous determination of dopamine (DA) and uric acid (UA) in the presence of even high concentrations of ascorbic acid (AA). It based on a glassy carbon electrode modified with an electroactive film of polymerized dibromofluorescein. The electrochemical behaviors of DA and UA were studied by cyclic voltammetry using the modified electrode. It exhibits excellent electrocatalytic activity towards the oxidation of the two analytes. Most notably, the oxidation potentials differ by 180 and 200 mV between AA-DA and DA-UA, respectively. Thus, excellent selectivity towards the oxidation of DA and UA in the presence of even high concentrations of AA is accomplished. Under the optimum conditions, the anodic peak currents are linearly related to the concentrations of DA and UA in the range from 0.2 to 200 μmol L-1 and from 1.0 to 250 μmol L-1, respectively. The detection limits for DA and UA are 0.03 μmol L-1 and 0.2 μmol L-1, respectively (at an S/N of 3). The method has good selectivity and sensitivity and was successfully applied to the simultaneous determination of DA and UA in spiked human serum.

A novel electrochemical sensor based on poly (dibromofluorescein) film modified glassy carbon electrode has been fabricated and used for the simultaneous determination of dopamine and uric acid in the presence of high concentration of ascorbic acid with good selectivity and sensitivity.






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References
Wightman RM, May LJ, Michael AC (1988) Detection of dopamine dynamics in the brain. Anal Chem 60:769A
Heinz A, Przuntek H, Winterer G, Pietzcker A (1995) Clinical aspects and follow-up of dopamine-induced psychoses in continuous dopaminergic therapy and their implications for the dopamine hypothesis of schizophrenic symptoms. Nervenarzt 66:662
Heinig M, Johnson RJ (2006) Role of uric acid in hypertension, renal disease, and metabolic syndrome. Clev Clin J Med 73:1059
Dutt VSE, Mottola HA (1974) Determination of uric acid at the microgram level by a kinetic procedure based on a pseudo-induction period. Anal Chem 46:1777
Gonan F, Buda M, Cespuglio R, Jouvet M, Pujol JF (1980) In vivo electrochemical detection of catechols in the neostriatum of anaesthetized rats: dopamine or DOPAC? Nature 286:902
Ramesh P, Suresh GS, Sampath S (2004) Selective determination of dopamine using unmodified, exfoliated graphite electrodes. J Electroanal Chem 561:173
Wang Y, Chen ZZ (2010) A novel poly(cyanocobalamin) modified glassy carbon electrode as electrochemical sensor for voltammetric determination of peroxynitrite. Talanta 82:534
Wang Y, Tong LL (2010) Electrochemical sensor for simultaneous determination of uric acid, xanthine and hypoxanthine based on poly (bromocresol purple) modified glassy carbon electrode. Sens Actuators B: Chem 150:43
Wang Y (2011) Simultaneous determination of uric acid, xanthine and hypoxanthine at poly(pyrocatechol violet)/functionalized multi-walled carbon nanotubes composite film modified electrode. Colloid Surf B 88:614
Yin HS, Shang K, Meng XM, Ai SY (2011) Voltammetric sensing of paracetamol, dopamine and 4-aminophenol at a glassy carbon electrode coated with gold nanoparticles and an organophillic layered double hydroxide. Microchim Acta 175:39
Li YX, Huang X, Chen YL, Wang L, Lin XQ (2009) Simultaneous determination of dopamine and serotonin by use of covalent modification of 5-hydroxytryptophan on glassy carbon electrode. Microchim Acta 164:107
Sun Y, Fei J, Hou J, Zhang Q, Liu Y, Hu B (2009) Simultaneous determination of dopamine and serotonin using a carbon nanotubes-ionic liquid gel modified glassy carbon electrode. Microchim Acta 165:373
Wang GF, Sun JG, Zhang W, Jiao SF, Fang B (2009) Simultaneous determination of dopamine, uric acid and ascorbic acid with LaFeO3 nanoparticles modified electrode. Microchim Acta 164:357
Huang J, Liu Y, Hou H, You T (2008) Simultaneous electrochemical determination of dopamine, uric acid and ascorbic acid using palladium nanoparticle-loaded carbon nanofibers modified electrode. Biosens Bioelectron 24:632
Mazloum-Ardakani M, Beitollahi H, Amini MK, Mirkhalaf F, Mirjalilia BF, Akbari A (2011) Application of 2-(3,4-dihydroxyphenyl)-1,3-dithialone self-assembled monolayer on gold electrode as a nanosensor for electrocatalytic determination of dopamine and uric acid. Analyst 136:1965
Thiagarajan S, Chen SM (2007) Preparation and characterization of Pt Au hybrid film modified electrodes and their use in simultaneous determination of dopamine, ascorbic acid and uric acid. Talanta 74:212
Mallesha M, Manjunatha R, Nethravathi C, Suresh GS, Rajamathi M, Melo JS, Venkatesha TV (2011) Functionalized-graphene modified graphite electrode for the selective determination of dopamine in presence of uric acid and ascorbic acid. Bioelectrochemistry 81:104
Lin L, Chen J, Yao H, Chen Y, Zheng Y, Lin X (2008) Simultaneous determination of dopamine, ascorbic acid and uric acid at poly (evans blue) modified glassy carbon electrode. Bioelectrochemistry 73:11
Yao H, Sun Y, Lin X, Tang Y, Huang L (2007) Electrochemical characterization of poly (eriochrome black T) modified glassy carbon electrode and its application to simultaneous determination of dopamine, ascorbic acid and uric acid. Electrochim Acta 52:6165
Li Y, Lin X (2006) Simultaneous electroanalysis of dopamine, ascorbic acid and uric acid by poly (vinyl alcohol) covalently modified glassy carbon electrode. Sens Actuators B 115:134
Zare HR, Rajabzadeh N, Nasirizadeh N, Mazloum Ardakani M (2006) Voltammetric studies of an oracet blue modified glassy carbon electrode and its application for the simultaneous determination of dopamine, ascorbic acid and uric acid. J Electroanal Chem 589:60
Yogeswaran U, Chen SM (2008) Multi-walled carbon nanotubes with poly(methylene blue) composite film for the enhancement and separation of electroanalytical responses of catecholamine and ascorbic acid. Sens Actuators B 130:739
Chandrashekar BN, Kumara Swamy BE, Pandurangachar M, Sathisha TV, Sherigara BS (2011) Electropolymerisation of L-arginine at carbon paste electrode and its application to the detection of dopamine, ascorbic and uric acid. Colloid Surf B 88:413
Brown AP, Anson FC (1977) Cyclic and differential pulse voltammetric behaviour of reactants confined to the electrode surface. Anal Chem 49:1589
Sharp M, Petersson M, Edstrom K (1979) General expression of the linear potential sweep voltammogram for a surface redox reaction with interactions between the adsorbed molecules: applications to modified electrodes. J Electroanal Chem 95:123
Bard AJ, Faulkner LR (2000) Electrochemical methods: fundamentals and applications. second ed. Wiley Press 196
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The research presented in this manuscript was supported by the Natural Science Foundation of Shandong Province of China (No. Y2006B28).
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Wang, Y., Xiao, Y. Glassy carbon electrode modified with poly(dibromofluorescein) for the selective determination of dopamine and uric acid in the presence of ascorbic acid. Microchim Acta 178, 123–130 (2012). https://doi.org/10.1007/s00604-012-0821-6
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DOI: https://doi.org/10.1007/s00604-012-0821-6