Abstract
A new simple, selective and rapid cyclic voltammetric method is reported for the accurate and precise determination of captopril using chlorpromazine as a suitable electrocatalyst. It has been shown by cyclic voltammetry, single step chronoamperometry and electrochemical impedance spectroscopy that chlorpromazine can catalyze the oxidation of captopril in aqueous buffer solution and produces a sharp oxidation peak current at about 0.625 V vs. saturated calomel reference electrode. The catalytic oxidation peak current of captopril is linearly dependent on its concentration and enables the determination of captopril over the concentration range of 8–1000 μM at pH 5.0, with a detection limit of 4.8 μM. The relative standard deviation for the determination of 400 μM captopril is 0.66% (n = 9). The influence of potential interfering substances on the determination of captopril was studied. The method was satisfactorily applied to the determination of captopril in real samples such as drug and urine.
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Cushman, D.W., Cheung, H.S., Sabo, E.F., and Ondetti, M.A., in Angiotensin Converting Enzyme Inhibitors, Horowitz, Z.P., Ed., Munich: Urban and Schwarzenberg, 1981, p. 3.
Tse, H.F., Ng, W., Chan, K.K., Li, S.K., Keung, K.K., Lau, Y.K., Chen, W.H., Tang, Y.W., and Leung, S.K., Am. J. Cardiol., 2002, vol. 89, p. 150.
Joly, D., Rieu, P., Mejean, A., Gagnadoux, M.F., Daudon, M., and Jungers, P., Pediatr. Nephrol., 1999, vol. 13, p. 945.
Sloand, J.A. and Izzo, J.L., Arch. Intern. Med., 1987, vol. 147, p. 1409.
Perazella, M. and Buller, G.K., Am. J. Kidney Dis., 1993, vol. 21, p. 504.
de Cavanagh, E.M.V., Inserra, F., Felder, L., Romano, L., Ercole, L., and Fraga, C.G., FEBS Letters, 1995, vol. 361, p. 22.
Golik, A., Modai, D., Averbukh, D., Sheffy, M., Shamis, A., Cohen, N., Shaked, U., and Dolev, E., Metabolism, 1990, vol. 39, p. 665.
Golik, A., Zaidenstein, R., Dishi, V., Blatt, A., Cohen, N., Cotter, G., Berman, S., and Weissgarten, J., J. Am. Coll. Nutr., 1998, vol. 17, p. 75.
Kelly, J.G. and O’Malley, K., Clin. Pharmacokinet., 1990, vol. 19, p. 177.
Good, C.B., McDermott, L., and McCloskey, B., J. Am. Med. Assoc., 1995, vol. 274, p. 538.
Rush, J.E. and Merrill, D.D., J. Cardiovasc. Pharmacol., 1987, vol. 9, p. 99.
Physician’s Desk Reference, Sifton, D.W., Ed., Montvale, NJ: Medical Economics Company, 2000.
Favaro, G. and Fiorani, M., Anal. Chim. Acta, 1996, vol. 332, p. 249.
Kus’mierek, K. and Bald, E., Chromatographia, 2007, vol. 66, p. 71.
Kok, R.J., Visser, J., Moolenaar, F., de Zeeuw, D., and Meijer, D.K.F., J. Chromatogr., B, 1997, vol. 693, p. 181.
Hillaert, S., and van den Bossche, W., J. Pharm. Biomed. Anal., 1999, vol. 21, p. 65.
Perez-Ruiz, T., Martinez-Lozano, C., and Galera, R., Electrophoresis, 2006, vol. 27, p. 2310.
Rahman, N., Singh, M., and Hoda, M.N., Il Farmaco, 2005, vol. 60, p. 569.
Jankowski, A., Skorek, A., Krzys’ko, K., Zarzycki, P.K., Ochocka, R.J., and Lamparczyk, H., J. Pharm. Biomed. Anal., 1995, vol. 13, p. 655.
Amini, M., Zarghi, A., and Vatanpour, H., Pharm. Acta Helvetiae, 1999, vol. 73, p. 303.
Huang, T., He, Z., Yang, B., Shao, L., Zheng, X., and Duan, G., J. Pharm. Biomed. Anal., 2006, vol. 41, p. 644.
Sypniewski, S. and Bald, E., J. Chromatogr., A, 1996, vol. 729, p. 335.
Al-Ghannam, S.M., El-Brashy, A.M., and Al-Farhan, B.S., Il Farmaco, 2002, vol. 57, p. 625.
Song, Z., Hou, S., Yu, X., Xie, X., and Shao, X., Anal. Lett., 2006, vol. 39, p. 1115.
Salem, I.I., Saif, W.A., Jmeian, Y., and Al Tamimi, J.I., J. Pharm. Biomed. Anal., 2005, vol. 37, p. 1073.
Ensafi, A.A. and Hajian, R., J. Braz. Chem. Soc., 2008, vol. 19, p. 405.
Ioannides, X., Economou, A., and Voulgaropoulos, A., J. Pharm. Biomed. Anal., 2003, vol. 33, p. 309.
Karimi-Maleh, H., Ensafi, A.A., and Allafchian, A.R., J. Solid State Electrochem., 2010, vol. 14, p. 9.
Hayen, H. and Karst, U., Anal. Chem., 2003, vol. 75, p. 4833.
Takamura, K., Inoue, S., Kusu, F., Otagiri, M., and Uekama, K., Chem. Pharm. Bull., 1983, vol. 31, p. 1821.
Mielech-Lukasiewicz, K., Puzanowska-Tarasiewicz, H., and Panuszko, A., Anal. Lett., 2008, vol. 41, p. 789.
Blankert, B., Hayen, H., van Leeuwen, S.M., Karst, U., Bodoki, E., Lotrean, S., Sandulescu, R., Mora Diez, N., Dominguez, O., Arcos, J., and Kauffmann, J.M., Electroanalysis, 2005, vol. 17, p. 1501.
Galus, Z., Fundumentals of Electrochemical Analysis, New York: Ellis Horwood, 1976.
Mirmomtaz, E., Ensafi, A.A., and Karimi-Maleh, H., Electroanalysis, 2008, vol. 20, p. 1973.
Beitollahi, H., Karimi-Maleh, H., and Khabazzadeh, H., Anal. Chem., 2008, vol. 80, p. 9499.
User Manual for Software FRA 4.9 (Autolab System), Netherlands: Eco Chemie, 2007.
Maritan, A. and Toigo, F., Electrochim. Acta, 1990, vol. 35, p. 141.
Bard, A.J. and Faulkner, L.R., Electrochemical Methods: Fundamentals and Applications, New York: Wiley, 2001.
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Ensafi, A.A., Arabzadeh, A. A new sensor for electrochemical determination of captopril using chlorpromazine as a mediator at a glassy carbon electrode. J Anal Chem 67, 486–496 (2012). https://doi.org/10.1134/S1061934812050024
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DOI: https://doi.org/10.1134/S1061934812050024