Amperometric dot-sensors based on zinc porphyrins for sildenafil citrate determination
作者： Simona-Cornelia Balasoiu , Raluca-Ioana Stefan-van Staden , Jacobus Frederick van Staden , Rodica-Mariana Ion , Gabriel-Lucian Radu
DOI: 10.1016/J.ELECTACTA.2011.09.040
关键词: Zinc 、 Amperometry 、 Carbon 、 Inorganic chemistry 、 Electrode 、 Differential pulse voltammetry 、 Diamond 、 Porphyrin 、 Detection limit 、 Nuclear chemistry 、 Chemistry
摘要: Three types of zinc porphyrins have been used for the design carbon paste or diamond based amperometric dot-sensors. Sildenafil citrate was determined using these sensors by employing differential pulse voltammetry. The linear concentration range proposed electrodes between 10−11 and 10−4 mol L−1, with lowest detection limit (2.46 pmol L−1) obtained dot-sensor modified zinc-5,10,15,20-tetra(4-sulfophenyl)porphyrin. reliably from its pharmaceutical formulations, namely Viagra recovery values higher than 93%.
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sci-hub.se 参考文章(20)
Anantha Iyengar Gopalan, Kwang Pill Lee, Shanmugasundaram Komathi, Strategically functionalized carbon nanotubes as the ultrasensitive electrochemical probe for picomolar detection of sildenafil citrate (Viagra). Biosensors and Bioelectronics. ,vol. 26, pp. 3018- 3022 ,(2011) , 10.1016/J.BIOS.2010.12.005
Joseph Wang, Selectivity coefficients for amperometric sensors. Talanta. ,vol. 41, pp. 857- 863 ,(1994) , 10.1016/0039-9140(94)E0079-7
A. Abd-Elbary, N. H. Foda, O. N. El-Gazayerly, Stability Indicating High Performance Liquid Chromatographic Assay for the Determination of Sildenafil Citrate in Bulk and in Formulations Chromatographia. ,vol. 59, pp. 561- 566 ,(2004) , 10.1365/S10337-004-0283-Z
Andrew R. Mccullough, Culley C. Carson, Dimitrios Hatzichristou, A prospective study of the beneficial effects of dose optimization and customized instructions on patient satisfaction with sildenafil citrate (Viagra®) for erectile dysfunction Urology. ,vol. 68, pp. 38- 46 ,(2006) , 10.1016/J.UROLOGY.2006.04.040
Raluca-Ioana Stefan-van Staden, Jacobus F. van Staden, Hassan Y. Aboul-Enein, Diamond paste-based electrodes for the determination of sildenafil citrate (Viagra) Journal of Solid State Electrochemistry. ,vol. 14, pp. 997- 1000 ,(2010) , 10.1007/S10008-009-0901-7
Srikanth Koneru, Suresh Varma Penumathsa, Mahesh Thirunavukkarasu, Ramesh Vidavalur, Lijun Zhan, Pawan K. Singal, Richard M Engelman, Dipak K Das, Nilanjana Maulik, Sildenafil‐mediated neovascularization and protection against myocardial ischaemia reperfusion injury in rats: role of VEGF/angiopoietin‐1 Journal of Cellular and Molecular Medicine. ,vol. 12, pp. 2651- 2664 ,(2008) , 10.1111/J.1582-4934.2008.00319.X
Hassan Y. Aboul‐Enein, Mohamed M. Hefnawy, Rapid Determination of Sildenafil Citrate in Pharmaceutical Preparations Using Monolithic Silica HPLC Column Journal of Liquid Chromatography & Related Technologies. ,vol. 26, pp. 2897- 2908 ,(2003) , 10.1081/JLC-120025052
Sibel A. Özkan, Bengi Uslu, Petr Zuman, Electrochemical oxidation of sildenafil citrate (Viagra) on carbon electrodes Analytica Chimica Acta. ,vol. 501, pp. 227- 233 ,(2004) , 10.1016/J.ACA.2003.09.033
Shao-Pu LIU, Li FAN, Xiao-Li HU, Zhong-Fang LIU, Shan LI, Resonance Rayleigh-scattering method for the determination of sildenafil citrate in a pharmaceutical formulation using Evans blue. Analytical Sciences. ,vol. 22, pp. 819- 823 ,(2006) , 10.2116/ANALSCI.22.819
D. Wróbel, J. Goc, R.M. Ion, Photovoltaic and spectral properties of tetraphenyloporphyrin and metallotetraphenyloporphyrin dyes Journal of Molecular Structure. ,vol. 450, pp. 239- 246 ,(1998) , 10.1016/S0022-2860(98)00434-7