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Rageh AH, Said MI, Abdel-Aal FAM. Zirconium-based hydrophobic-MOFs as innovative electrode modifiers for flibanserin determination: Exploring the electrooxidation mechanism using a comprehensive spectroelectrochemical study. Mikrochim Acta 2024; 191:236. [PMID: 38570402 DOI: 10.1007/s00604-024-06297-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/03/2024] [Indexed: 04/05/2024]
Abstract
Three different types of Zr-based MOFs derived from benzene dicarboxylic acid (BDC) and naphthalene dicarboxylic acid as organic linkers (ZrBDC, 2,6-ZrNDC, and 1,4-ZrNDC) were synthesized. They were characterized using X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), Fourier-transform IR spectroscopy (FT-IR), and Transmission electron microscopy (TEM). Their hydrophilic/hydrophobic nature was investigated via contact angle measurements; ZrBDC MOF was hydrophilic and the other two (ZrNDC) MOFs were hydrophobic. The three MOFs were combined with MWCNTs as electrode modifiers for the determination of a hydrophobic analyte, flibanserin (FLB), as a proof-of-concept analyte. Under the optimized experimental conditions, a significant enhancement in the oxidation peak current of FLB was observed when utilizing 2,6-ZrNDC and 1,4-ZrNDC, being the highest when using 1,4-ZrNDC. Furthermore, a thorough investigation of the complex oxidation pathway of FLB was performed by carrying out simultaneous spectroelectrochemical measurements. Based on the obtained results, it was verified that the piperazine moiety of FLB is the primary site for electrochemical oxidation. The fabricated sensor based on 1,4-ZrNDC/MW/CPE showed an oxidation peak of FLB at 0.8 V vs Ag/AgCl. Moreover, it showed excellent linearity for the determination of FLB in the range 0.05 to 0.80 μmol L-1 with a correlation coefficient (r) = 0.9973 and limit of detection of 3.0 nmol L-1. The applicability of the developed approach was demonstrated by determination of FLB in pharmaceutical tablets and human urine samples with acceptable repeatability (% RSD values were below 1.9% and 2.1%, respectively) and reasonable recovery values (ranged between 97 and 103% for pharmaceutical tablets and between 96 and 102% for human urine samples). The outcomes of the suggested methodology can be utilized for the determination of other hydrophobic compounds of pharmaceutical or biological interest with the aim of achieving low detection limits of these compounds in various matrices.
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Affiliation(s)
- Azza H Rageh
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
| | - Mohamed I Said
- Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Fatma A M Abdel-Aal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
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Ahmed YM, Eldin MA, Galal A, Atta NF. Electrochemical sensor for simultaneous determination of trifluoperazine and dopamine in human serum based on graphene oxide-carbon nanotubes/iron-nickel nanoparticles. RSC Adv 2023; 13:25209-25217. [PMID: 37622009 PMCID: PMC10445055 DOI: 10.1039/d3ra04334g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/15/2023] [Indexed: 08/26/2023] Open
Abstract
Trifluoperazine (TFLP) is an important psychiatric medication that balances the dopamine (DA) level in the brain for patients suffering from neurological disorder diseases. An efficient electrochemical sensor is developed for detecting TFLP in real human serum samples. The sensor is fabricated by casting the GC surface with two consecutive thin layers, namely a graphene oxide-carbon nanotubes mixture (GRO-CNT), and iron-nickel nanoparticles (Fe-Ni). The diffusion-controlled oxidation process of TFLP at the composite surface includes one electron transfer process. Under optimized conditions, the sensor in human serum shows excellent catalytic effect for simultaneous determination of TFLP and dopamine (DA) in the same concentration range (0.5 μM to 18 μM) with low detection limits of 0.13 μM and 0.32 μM respectively. The combined effect of a large conductive surface area and the excellent catalytic activity of the nanocomposite improves the sensor's performance. The sensor exhibits a stable current response over four weeks, excellent reproducibility, and insignificant interference from common species present in human serum samples. The reliability test of using the sensor in serum samples shows good recovery of TFLP.
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Affiliation(s)
- Yousef M Ahmed
- Chemistry Department, Faculty of Science, Cairo University 12613 Giza Egypt
| | - Mahmoud A Eldin
- Chemistry Department, Faculty of Science, Cairo University 12613 Giza Egypt
| | - Ahmed Galal
- Chemistry Department, Faculty of Science, Cairo University 12613 Giza Egypt
| | - Nada F Atta
- Chemistry Department, Faculty of Science, Cairo University 12613 Giza Egypt
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Chemometrics-assisted voltammetric determination of timolol maleate and brimonidine tartrate utilizing a carbon paste electrode modified with iron (III) oxide nanoparticles. Microchem J 2019. [DOI: 10.1016/j.microc.2018.10.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Pattar VP, Nandibewoor ST. Electrochemical studies for the determination of an antibiotic drug, d-cycloserine, in pharmaceutical and human biological samples. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2015.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Vijay P. Pattar
- P. G. Department of Studies in Chemistry, Karnatak UniversityDharwad 580003India
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Baggio R, Brovelli F, Moreno Y, Pinto M, Soto-Delgado J. Structural, electrochemical and theoretical study of a new chalcone derivative containing 3-thiophene rings. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Pattar VP, Nandibewoor ST. Electroanalytical method for the determination of 5-fluorouracil using a reduced graphene oxide/chitosan modified sensor. RSC Adv 2015. [DOI: 10.1039/c5ra04396d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
A glassy carbon electrode (GCE) modified with a chemically reduced graphene oxide and chitosan (CRGO/CS) composite film was constructed and used to determine 5-fluorouracil using cyclic, staircase and square wave voltammetric techniques.
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Affiliation(s)
- Vijay P. Pattar
- P. G. Department of Studies in Chemistry
- Karnatak University
- Dharwad-580003
- India
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7
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Naik KM, Nandibewoor ST. Electro-oxidation and determination of gemcitabine hydrochloride, an anticancer drug at gold electrode. J IND ENG CHEM 2013. [DOI: 10.1016/j.jiec.2013.02.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Afkhami A, Soltani-Felehgari F, Madrakian T. Gold nanoparticles modified carbon paste electrode as an efficient electrochemical sensor for rapid and sensitive determination of cefixime in urine and pharmaceutical samples. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.04.064] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Trace determination of vardenafil hydrochloride in commercial formulation and human serum by adsorptive anodic stripping voltammetry at a carbon paste electrode. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2020-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Square Wave Voltammetric Determination of 2-Thiouracil in Pharmaceuticals and Real Samples Using Glassy Carbon Electrode. INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY 2013. [DOI: 10.1155/2013/627854] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A simple and rapid method was developed using cyclic and square wave voltammetric techniques for the determination of trace-level sulfur containing compound, 2-thiouracil, at a glassy carbon electrode. 2-thiouracil produced two anodic peaks at 0.334 V and 1.421 V and a cathodic peak at −0.534 V. The square wave voltammetry of 2-thiouracil gave a good linear response in the range of 1–20 μM with a detection limit of 0.16 μM and quantification limit of 0.53 μM (0.0679 μg/g), which is in good agreement as per IUPAC definition of trace component analysis (100 μg/g). The obtained recoveries range from 98.10% to 102.1%. The proposed method was used successfully for its quantitative determination in pharmaceutical formulations and urine as real samples.
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Dogan-Topal B. Electrooxidative behavior and determination of trifluoperazine at multiwalled carbon nanotube-modified glassy carbon electrode. J Solid State Electrochem 2012. [DOI: 10.1007/s10008-012-1967-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Bagheri A, Hosseini H. Electrochemistry of raloxifene on glassy carbon electrode and its determination in pharmaceutical formulations and human plasma. Bioelectrochemistry 2012; 88:164-70. [PMID: 22542469 DOI: 10.1016/j.bioelechem.2012.03.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 03/22/2012] [Accepted: 03/26/2012] [Indexed: 11/17/2022]
Abstract
The electrochemical behavior of raloxifene (RLX) on the surface of a glassy carbon electrode (GCE) has been studied by cyclic voltammetry (CV). The CV studies were performed in various supporting electrolytes, wide range of potential scan rates, and pHs. The results showed an adsorption-controlled and quasi-reversible process for the electrochemical reaction of RLX, and a probable redox mechanism was suggested. Under the optimum conditions, differential pulse voltammetry (DPV) was applied for quantitative determination of the RLX in pharmaceutical formulations. The DPV measurements showed that the anodic peak current of the RLX was linear to its concentration in the range of 0.2-50.0μM with a detection limit of 0.0750μM, relative standard deviation (RSD %) below 3.0%, and a good sensitivity. The proposed method was successfully applied for determination of the RLX in pharmaceutical and human plasma samples with a good selectivity and suitable recovery.
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Affiliation(s)
- Akbar Bagheri
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, Evin, Tehran, Iran.
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Martínez NA, Pereira SV, Bertolino FA, Schneider RJ, Messina GA, Raba J. Electrochemical detection of a powerful estrogenic endocrine disruptor: Ethinylestradiol in water samples through bioseparation procedure. Anal Chim Acta 2012; 723:27-32. [DOI: 10.1016/j.aca.2012.02.033] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 02/11/2012] [Accepted: 02/15/2012] [Indexed: 10/28/2022]
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14
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15
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Naik KM, Nandibewoor ST. Electrochemical Behavior of Chalcone at a Glassy Carbon Electrode and Its Analytical Applications. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ajac.2012.39086] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Gholivand MB, Azadbakht A, Pashabadi A. An Electrochemical Sensor Based on Carbon Nanotube Bimetallic Au-Pt Inorganic-Organic Nanofiber Hybrid Nanocomposite Electrode Applied for Detection of Guaifenesin. ELECTROANAL 2011. [DOI: 10.1002/elan.201100381] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Voltammetric techniques for the assay of pharmaceuticals—A review. Anal Biochem 2011; 408:179-96. [DOI: 10.1016/j.ab.2010.09.027] [Citation(s) in RCA: 374] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 09/17/2010] [Accepted: 09/18/2010] [Indexed: 11/20/2022]
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18
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Hegde RN, Kumara Swamy B, Shetti NP, Nandibewoor ST. Electro-oxidation and determination of gabapentin at gold electrode. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2009.08.004] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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Hegde RN, Nandibewoor ST. Electrochemical Oxidation of Pentoxifylline and its Analysis in Pure and Pharmaceutical Formulations at a Glassy Carbon Electrode. ANAL LETT 2008. [DOI: 10.1080/00032710801978228] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Uslu B, Özkan SA, Şentürk Z. Electrooxidation of the antiviral drug valacyclovir and its square-wave and differential pulse voltammetric determination in pharmaceuticals and human biological fluids. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2005.09.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Ozkan SA, Dogan B, Uslu B. Voltammetric Analysis of the Novel Atypical Antipsychotic Drug Quetiapine in Human Serum and Urine. Mikrochim Acta 2005. [DOI: 10.1007/s00604-005-0457-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Electrochemical behavior of vardenafil on glassy carbon electrode: Determination in tablets and human serum. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.07.040] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Tapsoba I, Belgaied JE, Boujlel K. Voltammetric assay of Guaifenesin in pharmaceutical formulation. J Pharm Biomed Anal 2005; 38:162-5. [PMID: 15907635 DOI: 10.1016/j.jpba.2004.11.056] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2004] [Revised: 11/24/2004] [Accepted: 11/24/2004] [Indexed: 10/25/2022]
Abstract
The electrochemical oxidation of Guaifenesin in a pharmaceutical formulation containing Guaifenesin has been carried out in Britton-Robinson buffer (BRB) (0.04 mol L-1) on platinum electrode. Guaifenesin exhibits a well-defined irreversible oxidation peak at 0.924 V/ref. The influence of pH on the oxidation of Guaifenesin was studied in BRB (pH range 2-5). A method for the analysis of Guaifenesin in BRB (0.04 mol L-1, pH 2), which allows quantification over the range 20-60 microg mL-1, was proposed and successfully applied to the determination of Guaifenesin in syrup with mean recovery and relative standard deviation of 103.3% and 1.32%, respectively.
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Affiliation(s)
- I Tapsoba
- Laboratoire de Chimie Analytique et d'Electrochimie, Faculté des Sciences de Tunis, Département de Chimie, Campus Universitaire, 2029 El Manar, Tunis, Tunisia
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Dogan B, Özkan SA, Uslu B. Electrochemical Characterization of Flupenthixol and Rapid Determination of the Drug in Human Serum and Pharmaceuticals by Voltammetry. ANAL LETT 2005. [DOI: 10.1081/al-200050312] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Gölcü A, Yücesoy C, Serin S. Spectrophotometric determination of some beta-blockers in dosage forms based on complex formation with Cu(II) and Co(II). ACTA ACUST UNITED AC 2004; 59:487-92. [PMID: 15178312 DOI: 10.1016/j.farmac.2003.12.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2003] [Accepted: 12/20/2003] [Indexed: 11/15/2022]
Abstract
Four sensitive and accurate spectrophotometric methods have been developed for the assay of Acebutolol Hydrochloride (ACH), Atenolol (ATE) and Propranolol Hydrochloride (PRH), which are based on the complexation of drugs with copper(II) (Cu(II)) and cobalt(II) (Co(II)). The coloured products are measured at 613, 694, 548 and 614 nm for ACH-Co(II), ATE-Cu(II), PRH-Cu(II) and PRH-Co(II) method, respectively. The optimization of various experimental conditions is described. Conformity with Beer's Law was evident over a concentration range in the of 2 x 10(-5) - 1 x 10(-2) mol/L. The molar absorptivity, detection and quantification limits are calculated. The results obtained showed good recoveries of 100.2 +/- 1.1, 100.3 +/- 1.2, 100.75 +/- 1.0 and 99.55 +/- 1.1 % with relative standard deviations of 0.410, 0.490, 0.161 and 0.140 % for ACH-Co(II), ATE-Cu(II), PRH-Cu(II) and PRH-Co(II) method, respectively. They were applied to the analysis of tablet forms of the drugs and the results were statistically compared with those obtained by official and literature methods using t- and F-tests. There were no significant difference among the mean values and precisions of the methods at 95% confidence level.
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Affiliation(s)
- Ayşegül Gölcü
- University of Kahramanmaraş Sütçü Imam, Faculty of Science and Arts, Department of Chemistry, 46100, Kahramanmaraş, Turkey.
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Reddy TM, Sreedhar M, Jayarama Reddy S. Voltammetric behavior of cefixime and cefpodoxime proxetil and determination in pharmaceutical formulations and urine. J Pharm Biomed Anal 2003; 31:811-8. [PMID: 12644208 DOI: 10.1016/s0731-7085(02)00721-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Electrochemical reduction behavior of cephalosporins, Cefixime (CF) and Cefpodoxime Proxetil (CP) have been studied by using different voltammetric techniques in Britton-Robinson buffer system. Two well defined cathodic waves are observed for both the compounds in the entire pH range. Number of electrons transferred in the reduction process was calculated and the reduction mechanism is proposed. The results indicate that the process of both the compounds is irreversible and diffusion-controlled. The peak currents for CF and CP are found to be linear over the range of concentration 6.0 x 10(-8) to 1.2 x 10(-5) mol l(-1) and 8.8 x 10(-8) to 1.1 x 10(-5) mol l(-1), respectively. The lower detection limits are found to be 4.6 x 10(-8) and 8.52 x 10(-8) mol l(-1) for the two compounds. A differential pulse voltammetric method has been developed for the determination of these drugs in pharmaceutical formulations and urine samples.
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Affiliation(s)
- T Madhusudana Reddy
- Electrochemical Research Laboratories, Department of Chemistry, Sri Venkateswara University, 517 502, Tirupati, India
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Uslu B, Ozkan SA. Electroanalytical characteristics of piribedil and its differential pulse and square wave voltammetric determination in pharmaceuticals and human serum. J Pharm Biomed Anal 2003; 31:481-9. [PMID: 12615235 DOI: 10.1016/s0731-7085(02)00725-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The electrochemical oxidative behavior of piribedil (PR) was described. It was investigated by cyclic, linear sweep, differential pulse (DPV) and square wave (SWV) voltammetric techniques. The redox behavior of PR was found irreversible. Different parameters were tested to optimize the conditions for the determination of PR. The dependence of intensities of currents and potential on pH, concentration, scan rate, nature of the buffer was investigated. Two sensitive methods for the measurement of PR were described. For analytical purposes, a very well resolved diffusion controlled voltammetric peak was obtained in 0.1 M H(2)SO(4) and pH 5.7 acetate buffer. The determination peaks are obtained at 1.27 and 0.95 V for differential pulse and 1.29 and 0.97 V for SWV in 0.1 M H(2)SO(4) and pH 5.7 acetate buffer, respectively. The linear response was obtained in the ranges of 2 x 10(-6)-1 x 10(-3) M in 0.1 M H(2)SO(4) and 2 x 10(-6)-8 x 10(-4) M in pH 5.7 acetate buffer for both techniques. The proposed techniques were successfully applied to the determination of PR in tablet dosage forms and human serum. Excipients did not interfere in the determination. The necessary statistical validation reveals that the proposed methods are free from significant systematic errors.
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Affiliation(s)
- Bengi Uslu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06100 Tandogan, Ankara, Turkey
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