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Lukyanov DA, Sizov VV, Volkov AI, Beletskii EV, Yankin AN, Alekseeva EV, Levin OV. Tuning the Charge Transport in Nickel Salicylaldimine Polymers by the Ligand Structure. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248798. [PMID: 36557930 PMCID: PMC9787065 DOI: 10.3390/molecules27248798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/04/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
The conductivity of the polymeric energy storage materials is the key factor limiting their performance. Conductivity of polymeric NiSalen materials, a prospective class of energy storage materials, was found to depend strongly on the length of the bridge between the nitrogen atoms of the ligand. Polymers obtained from the complexes containing C3 alkyl and hydroxyalkyl bridges showed an electrical conductivity one order of magnitude lower than those derived from more common complexes with C2 alkyl bridges. The observed difference was studied by means of cyclic voltammetry on interdigitated electrodes and operando spectroelectrochemistry, combined with density functional theory (DFT) calculations.
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Affiliation(s)
- Daniil A. Lukyanov
- Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia
| | - Vladimir V. Sizov
- Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia
| | - Alexey I. Volkov
- Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia
| | - Evgenii V. Beletskii
- Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia
| | - Andrey N. Yankin
- School of Physics and Engineering, ITMO University, Kronverksky Pr. 49A, 197101 St. Petersburg, Russia
| | - Elena V. Alekseeva
- Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia
| | - Oleg V. Levin
- Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia
- Correspondence: ; Tel.: +7-(812)-4286900
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Ultrasensitive Functionalized Polymeric-Nanometal Oxide Sensors for Potentiometric Determination of Ranitidine Hydrochloride. Polymers (Basel) 2022; 14:polym14194150. [PMID: 36236096 PMCID: PMC9571185 DOI: 10.3390/polym14194150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/29/2022] [Accepted: 09/29/2022] [Indexed: 11/14/2022] Open
Abstract
Two metal oxide nanoparticles, magnesium oxide nanoparticles (MgONPs) and aluminum oxide nanoparticles (Al2O3NPs), were synthesized from green sources, Salvia officials and Cuminum cyminum seed extract, respectively. These nanoparticles were used for construction of potentiometric enhancement sensors employed for the estimation of ranitidine hydrochloride (RNT) in authentic powder and commercial products. The electroactive substance ranitidine-phosphotungstate (RNT-PT) was formed by combining RNT with phosphotungstic acid (PTA) in the presence of plasticizing material o-nitrophenyloctyl ether (o-NPOE). The outcomes showed that the enhanced MgO and Al2O3 nanosensors behaved linearly across the concentration ranges 1.0 × 10-9-1.0 × 10-2 and 1.0 × 10-10-1.0 × 10-2 mol L-1, respectively. However, the conventional sensor (RNT-PT) displayed a linearity over 1.0 × 10-6-1.0 × 10-2 mol L-1. Least square equations were calculated as EmV = (54.1 ± 0.5) log (RNT) + 762.33, EmV = (58.6 ± 0.2) log (RNT) + 696.48, and EmV = (52.2 ± 0.7) log (RNT) + 756.76 for enriched nanometal oxides modified and conventional sensors, respectively. The correlation coefficients of regression equations were 0.9997, 0.9995, and 0.9992 for the above suggested sensors, respectively. The recorded results showed excellent sensitivity and selectivity of the modified nanometal oxide sensors for the quantification of the analyzed drug in its authentic samples and commercial products.
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Castro AS, de Azevedo LS, Rodrigues CHP, Patelli ACC, Bruni AT, de Oliveira MF. Use of voltammetric and chemometric tools to develop a sensor in forensic chemistry. TALANTA OPEN 2022. [DOI: 10.1016/j.talo.2021.100079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Electrochemical sensor based on a chitosan-molybdenum vanadate nanocomposite for detection of hydroxychloroquine in biological samples. J Colloid Interface Sci 2022; 613:1-14. [PMID: 35030412 DOI: 10.1016/j.jcis.2022.01.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/17/2021] [Accepted: 01/06/2022] [Indexed: 12/31/2022]
Abstract
In this study, we firstly introduce an ultra-high sensitive V3.6Mo2.4O16-chitosan (MV-CHT) nanocomposite for electrochemical hydroxychloroquine sulfate (HCQ) monitoring toward paracetamol (PCM) and pantoprazole (PPZ) in environmental and clinical diagnostics. The single-phase MV nanostructures are prepared via the sol-gel pechini route, followed by engineering maleic acid as a structure-directing agent. The stabilization of the MV electro-catalysts is adopted by varying critical factors such as calcination temperature, different chelating ligands, chelating molality and cross-linker concentration. The structural and morphological characterizations, namely, ordered active sites, structural integrity, porous network and dispersibility on the cationic polymer are confirmed by physicochemical analyses. Also, analytical nature of the MV-CHT modified carbon paste electrode (MV-CHT/CPE) is constructed via electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and differential pulse voltammetry (DPV) techniques. As a result, the nano-MV-CHT/CPE platforms with 10% of polymeric matrixes delivered the boosted analytical performance in terms of linear ranges (0.0019-194.0 µM), lower detection limit (LOD = 0.224 nM), together with excellent sensitivity and selectivity. The novel combination of MV nanoparticles and CHT provide the fluent channels for rapid charge transport and effective surface area. Such results illustrate the synergistic and interaction capability of MV-CHT-based sensing catalysts with bioactive molecules, which make them as superior drug monitoring devices.
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Narouie S, Hossein Rounaghi G, Saravani H, Shahbakhsh M. Poly (Biphenol/biphenoquinone - Vanadium (IV)) modified electrode as selective sensor for detection of 4-nitrophenol. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Soares Castro A, Henrique Pinke Rodrigues C, Manoel Teles de Menezes M, Beatriz Defendi da Silva A, Thais Bruni A, Firmino de Oliveira M. Fe(II), Ni(II), Cu(II), and Co(II) salen Schiff base complexes: Proposal for a voltammetric sensor to analyze cocaine hydrochloride and its interferents. Forensic Chem 2021. [DOI: 10.1016/j.forc.2021.100347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Shahbakhsh M, Saravani H, Narouie S, Hashemzaei Z. Poly (hydroquinone-oxovanadium (IV)) porous hollow microspheres for voltammetric detection of phenol. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105948] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Mello LDS, da Cruz Jr JW, Bucalon DH, Romera S, dos Santos MP, Lião LM, Vizotto L, Martins FT, Dockal ER. Synthesis, characterization and crystal structure of racemic vanadyl and uranyl salen-type complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Borges PH, Catto AC, Longo E, Nossol E. Electrochemical synthesis of reduced graphene oxide/ruthenium oxide hexacyanoferrate nanocomposite film and its application for ranitidine detection. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kalinke C, Zanicoski-Moscardi AP, de Oliveira PR, Mangrich AS, Marcolino-Junior LH, Bergamini MF. Simple and low-cost sensor based on activated biochar for the stripping voltammetric detection of caffeic acid. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105380] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Competitive behavior of nitrogen based axial ligands in the oxovanadium(IV)-salen catalyzed sulfoxidation of phenylmercaptoacetic acid. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Shehata M, Fekry AM, Walcarius A. Moxifloxacin Hydrochloride Electrochemical Detection at Gold Nanoparticles Modified Screen-Printed Electrode. SENSORS 2020; 20:s20102797. [PMID: 32423013 PMCID: PMC7287685 DOI: 10.3390/s20102797] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 02/05/2023]
Abstract
It appeared that either the carbon paste or the screen-printed carbon electrodes that were modified with gold nanoparticles (AuNPs) gave rise to the largest current responses after a rapid screening of various nanomaterials as modifiers of carbon composite electrodes in view of designing an electrochemical sensor for Moxifloxacin Hydrochloride (Moxi). The screen-printed electrode (SPE) support was preferred over the carbon paste one for its ability to be used as disposable single-use sensor enabling the circumvention of the problems of surface fouling encountered in the determination of Moxi. The response of AuNPs modified SPE to Moxi was investigated by cyclic voltammetry (CV) (including the effect of the potential scan rate and the pH of the medium), chronoamperometry, and differential pulse voltammetry (DPV) after morphological and physico-chemical characterization. DPV was finally applied to Moxi detection in phosphate buffer at pH 7, giving rise to an accessible concentration window ranging between 8 µM and 0.48 mM, and the detection and quantification limits were established to be 11.6 µM and 38.6 µM, correspondingly. In order to estimate the applicability of Moxi identification scheme in actual trials, it was practiced in a human baby urine sample with excellent recoveries between 99.8 % and 101.6 % and RSDs of 1.1-3.4%, without noticeable interference.
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Affiliation(s)
- M. Shehata
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt;
| | - Amany M. Fekry
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt;
- LCPME, Université de Lorraine, CNRS, F-54000 Nancy, France
- Correspondence: (A.M.F.); (A.W.); Tel.: +202-0101-545-331 (A.M.F.); +33-3-7274-7375 (A.W.)
| | - Alain Walcarius
- LCPME, Université de Lorraine, CNRS, F-54000 Nancy, France
- Correspondence: (A.M.F.); (A.W.); Tel.: +202-0101-545-331 (A.M.F.); +33-3-7274-7375 (A.W.)
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Castro AS, de Menezes MMT, Alves GM, de Oliveira MF. Voltammetric analysis of cocaine hydrochloride at carbon paste electrode chemically modified with N,N’-ethylene-bis-(salicylideneiminato) manganese(II) Schiff base complex. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104399] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Freire C, Nunes M, Pereira C, Fernandes DM, Peixoto AF, Rocha M. Metallo(salen) complexes as versatile building blocks for the fabrication of molecular materials and devices with tuned properties. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.05.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oiye ÉN, Ribeiro MFM, Katayama JMT, Tadini MC, Balbino MA, Eleotério IC, Magalhães J, Castro AS, Silva RSM, da Cruz Júnior JW, Dockal ER, de Oliveira MF. Electrochemical Sensors Containing Schiff Bases and their Transition Metal Complexes to Detect Analytes of Forensic, Pharmaceutical and Environmental Interest. A Review. Crit Rev Anal Chem 2019; 49:488-509. [PMID: 30767567 DOI: 10.1080/10408347.2018.1561242] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Schiff bases and their transition metal complexes are inexpensive and easy to synthesize. These compounds display several structural and electronic features that allow their application in numerous research fields. Over the last three decades, electroanalytical scientists of various areas have developed electrochemical sensors from many compounds. The present review discusses the applicability of Schiff bases, their transition metal complexes and new materials containing these compounds as electrode modifiers in sensors to detect analytes of forensic, pharmaceutical and environmental interest. In forensic sciences, Schiff bases are mainly used to analyze illicit drugs: chemical reactions involving Schiff bases can help to elucidate illicit drug production and to determine analytes in seized samples. In the environmental area, given that most methodologies provide Limit of Detection (LOD) values below the values recommended by regulatory agencies, Schiff bases constitute a promising strategy. As for pharmaceutical applications, Schiff bases represent an approach for analysis of complex biological samples containing low levels of the target analytes in the presence of a large quantity of interfering compounds. This review will show that new highly specific materials can be synthesized based on Schiff bases and applied in the pharmaceutical industry, toxicological studies, electrocatalysis and biosensors. Most literature papers have reported on Schiff bases combined with carbon paste to give a chemically modified electrode that is easy and inexpensive to produce and which displays specific and selective sensing capacity for different applications.
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Affiliation(s)
- Érica Naomi Oiye
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Maria Fernanda Muzetti Ribeiro
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Juliana Midori Toia Katayama
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Maraine Catarina Tadini
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Marco Antonio Balbino
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Izabel Cristina Eleotério
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Juliana Magalhães
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Alex Soares Castro
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Ricardo Soares Mota Silva
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - José Wilmo da Cruz Júnior
- Departamento de Ciências Exatas e Educação, Universidade Federal de Santa Catarina , Blumenau , Santa Catarina , Brasil
| | - Edward Ralph Dockal
- Departamento de Química - Centro de Ciências Exatas e de Tecnologia, Universidade Federal de São Carlos , São Carlos , São Paulo , Brasil
| | - Marcelo Firmino de Oliveira
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
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Erxleben A. Transition metal salen complexes in bioinorganic and medicinal chemistry. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.060] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Benvidi A, Nafar MT, Jahanbani S, Tezerjani MD, Rezaeinasab M, Dalirnasab S. Developing an electrochemical sensor based on a carbon paste electrode modified with nano-composite of reduced graphene oxide and CuFe 2O 4 nanoparticles for determination of hydrogen peroxide. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:1435-1447. [PMID: 28415435 DOI: 10.1016/j.msec.2017.03.062] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 02/16/2017] [Accepted: 03/09/2017] [Indexed: 10/20/2022]
Abstract
In this paper, a highly sensitive voltammetric sensor based on a carbon paste electrode with CuFe2O4 nanoparticle (RGO/CuFe2O4/CPE) was designed for determination of hydrogen peroxide (H2O2). The electrocatalytic reduction of H2O2 was examined using various techniques such as cyclic voltammetry (CV), chronoamperometry, amperometry and differential pulse voltammetry (DPV). CuFe2O4 nanoparticles were synthesized by co-precipitation method and characterized with scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) techniques. Then, a high conductive platform based on a carbon paste electrode modified with RGO and CuFe2O4 nanoparticles was prepared as a suitable platform for determination of hydrogen peroxide. Under the optimum conditions (pH5), the modified electrode indicated a fast amperometric response of <2s, good linear range of 2 to 200μM, low detection limit of 0.52μM for determination of hydrogen peroxide. Also, the peak current of differential pulse voltammetry (DPV) of hydrogen peroxide is increased linearly with its concentration in the ranges of 2 to 10μM and 10 to 1000μM. The obtained detection limit for hydrogen peroxide was evaluated to be 0.064μM by DPV. The designed sensor was successfully applied for the assay of hydrogen peroxide in biological and pharmaceutical samples such as milk, green tea, and hair dye cream and mouthwash solution.
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Affiliation(s)
- Ali Benvidi
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran.
| | | | - Shahriar Jahanbani
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
| | | | - Masoud Rezaeinasab
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
| | - Sudabeh Dalirnasab
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
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Chen J, Shu J, Chen J, Cao Z, Xiao A, Yan Z. Highly luminescent S,N co-doped carbon quantum dots-sensitized chemiluminescence on luminol-H2O2system for the determination of ranitidine. LUMINESCENCE 2016; 32:277-284. [DOI: 10.1002/bio.3173] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/14/2016] [Accepted: 05/19/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jianqiu Chen
- School of Science, China Pharmaceutical University; Nanjing China
| | - Juan Shu
- School of Science, China Pharmaceutical University; Nanjing China
| | - Jiao Chen
- School of Science, China Pharmaceutical University; Nanjing China
| | - Zhiran Cao
- School of Science, China Pharmaceutical University; Nanjing China
| | - An Xiao
- School of Science, China Pharmaceutical University; Nanjing China
| | - Zhengyu Yan
- School of Science, China Pharmaceutical University; Nanjing China
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Vicentini FC, Janegitz BC, Bonifácio VG, Fatibello-Filho O, Marcolino-Júnior LH. Novel flow injection spectrophotometric determination of ranitidine in pharmaceuticals. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel flow injection spectrophotometric determination of ranitidine in pharmaceuticals is reported. The method is based on a compound formed in a reaction using ranitidine with and potassium permanganate in neutral media, which can be monitored at 430 nm. Under optimal conditions, an analytical curve was constructed, which was linear in the range between 5.0 × 10−5 and 1.0 × 10−3 mol L−1 with a detection limit of 1.0 × 10−5 mol L−1. In addition, the sample throughput was 60 h−1 and the obtained results for commercial formulation samples by applying the proposed method were in good agreement with labeled values and those obtained by a reference method at a 95% confidence level.
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Affiliation(s)
| | - Bruno C. Janegitz
- Department of Natural Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, Brazil
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Raymundo-Pereira PA, Campos AM, Prado TM, Furini LN, Boas NV, Calegaro ML, Machado SA. Synergy between Printex nano-carbons and silver nanoparticles for sensitive estimation of antioxidant activity. Anal Chim Acta 2016; 926:88-98. [DOI: 10.1016/j.aca.2016.04.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/20/2016] [Accepted: 04/21/2016] [Indexed: 12/17/2022]
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21
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A new sensor architecture based on carbon Printex 6L to the electrochemical determination of ranitidine. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3143-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Raymundo-Pereira PA, Ceccato DA, Junior AGB, Teixeira MFS, Lima SAM, Pires AM. Study on the structural and electrocatalytic properties of Ba2+- and Eu3+-doped silica xerogels as sensory platforms. RSC Adv 2016. [DOI: 10.1039/c6ra22508j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work reports on the sol–gel synthesis of barium- and europium-doped silica xerogel and its use as an electrocatalytic sensor.
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Affiliation(s)
- Paulo A. Raymundo-Pereira
- Faculdade de Ciências e Tecnologia
- UNESP – Univ Estadual Paulista
- Presidente Prudente
- Brazil
- Instituto de Biociências
| | - Diego A. Ceccato
- Faculdade de Ciências e Tecnologia
- UNESP – Univ Estadual Paulista
- Presidente Prudente
- Brazil
- Instituto de Biociências
| | - Airton G. B. Junior
- Faculdade de Ciências e Tecnologia
- UNESP – Univ Estadual Paulista
- Presidente Prudente
- Brazil
- Instituto de Biociências
| | - Marcos F. S. Teixeira
- Faculdade de Ciências e Tecnologia
- UNESP – Univ Estadual Paulista
- Presidente Prudente
- Brazil
- Instituto de Biociências
| | - Sergio A. M. Lima
- Faculdade de Ciências e Tecnologia
- UNESP – Univ Estadual Paulista
- Presidente Prudente
- Brazil
- Instituto de Biociências
| | - Ana. M. Pires
- Faculdade de Ciências e Tecnologia
- UNESP – Univ Estadual Paulista
- Presidente Prudente
- Brazil
- Instituto de Biociências
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Ribeiro GH, Vilarinho LM, Ramos TDS, Bogado AL, Dinelli LR. Electrochemical behavior of hydroquinone and catechol at glassy carbon electrode modified by electropolymerization of tetraruthenated oxovanadium porphyrin. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.139] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Raymundo-Pereira PA, Teixeira MFS, Caetano FR, Bergamini MF, Marcolino-Júnior LH. A Simple and Rapid Estimation of Totals Polyphenols Based On Carbon Paste Electrode Modified with Ruthenium Oxo-Complex. ELECTROANAL 2015. [DOI: 10.1002/elan.201500193] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Oxidovanadium(IV) complexes involving dehydroacetic acid and β-diketones of bioinorganic and medicinal relevance: Their synthesis, characterization, thermal behavior and DFT aspects. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.11.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Zabierowski P, Szklarzewicz J, Gryboś R, Modryl B, Nitek W. Assemblies of salen-type oxidovanadium(iv) complexes: substituent effects and in vitro protein tyrosine phosphatase inhibition. Dalton Trans 2014; 43:17044-53. [DOI: 10.1039/c4dt02344g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A systematic study of 5,5′-disubstituted oxidovanadium(iv) complexes with a chiral salen type ligand showed variable assemblies of complex molecules dependent on steric and electronic factors of the substituents.
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Affiliation(s)
| | | | - Ryszard Gryboś
- Faculty of Chemistry
- Jagiellonian University
- 30-060 Kraków, Poland
| | - Barbara Modryl
- Faculty of Pharmacy
- Jagiellonian University Medical College
- Kraków 30-688, Poland
| | - Wojciech Nitek
- Faculty of Chemistry
- Jagiellonian University
- 30-060 Kraków, Poland
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