51
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Novotný L, Petrankova R. Potentiometric Determination of Silver Nanoparticles using Silver Amalgam Electrodes. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1045584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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52
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Sensitive voltammetric determination of herbicide terbutryn using solid electrodes based on silver amalgam and boron-doped diamond. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1556-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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53
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Navrátil T, Nováková K, Barek J, Vyskočil V, Chýlková J. The Use of the Silver Solid Amalgam Electrode for Voltammetric Determination of 9-nitroanthracene. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.979295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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54
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Square-wave voltammetric determination of fungicide fenfuram in real samples on bare boron-doped diamond electrode, and its corrosion properties on stainless steels used to produce agricultural tools. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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55
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Navrátil T, Petr M, Kohlíková E. Changes of lipidemia after one month of creatine supplementation. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-014-1336-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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56
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Carbon-Based Electrodes for Sensitive Electroanalytical Determination of Aminonaphthalenes. ELECTROANAL 2015. [DOI: 10.1002/elan.201400719] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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57
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Pérez-Ràfols C, Serrano N, Díaz-Cruz JM, Ariño C, Esteban M. Mercury Films on Commercial Carbon Screen-Printed Devices for the Analysis of Heavy Metal Ions: a Critical Evaluation. ELECTROANAL 2015. [DOI: 10.1002/elan.201500042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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58
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Brycht M, Burnat B, Skrzypek S, Guzsvány V, Gutowska N, Robak J, Nosal–Wiercińska A. Voltammetric and corrosion studies of the fungicide fludioxonil. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.130] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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59
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Brycht M, Skrzypek S, Robak J, Guzsvány V, Vajdle O, Zbiljić J, Nosal-Wiercińska A, Guziejewski D, Andrijewski G. Ultra trace level determination of fenoxanil by highly sensitive square wave adsorptive stripping voltammetry in real samples with a renewable silver amalgam film electrode. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.11.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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60
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Janíková-Bandžuchová L, Šelešovská R, Schwarzová-Pecková K, Chýlková J. Sensitive voltammetric method for rapid determination of pyridine herbicide triclopyr on bare boron-doped diamond electrode. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.12.064] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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61
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Peckova-Schwarzova K, Zima J, Barek J. Determination of Aromatic Hydrocarbons and Their Derivatives. ENVIRONMENTAL ANALYSIS BY ELECTROCHEMICAL SENSORS AND BIOSENSORS 2015. [DOI: 10.1007/978-1-4939-1301-5_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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62
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Siara L, de Lima F, Cardoso C, Arruda G. Electrochemically pretreated zeolite-modified carbon-paste electrodes for determination of linuron in an agricultural formulation and water. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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63
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Jaklová Dytrtová J, Jakl M, Nováková K, Navrátil T, Šádek V. Binding abilities of copper to phospholipids and transport of oxalate. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1385-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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64
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Šelešovská R, Janíková L, Chýlková J. Green electrochemical sensors based on boron-doped diamond and silver amalgam for sensitive voltammetric determination of herbicide metamitron. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1372-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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65
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Rumlova T, Barek J, Matysik F. Voltammetric Determination of 8‐Nitroquinoline Using a Silver Solid Electrode and Its Application to Model Samples of Drinking and River Water. ELECTROANAL 2014. [DOI: 10.1002/elan.201400432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tereza Rumlova
- Charles University in Prague, Faculty of Science, University Research Centre “Supramolecular Chemistry”, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, CZ‐128 43 Prague 2, Czech Republic tel.: +420 221951224; fax: +420 224913538
| | - Jiri Barek
- Charles University in Prague, Faculty of Science, University Research Centre “Supramolecular Chemistry”, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, CZ‐128 43 Prague 2, Czech Republic tel.: +420 221951224; fax: +420 224913538
| | - Frank‐Michael Matysik
- University of Regensburg, Institute of Analytical Chemistry, Chemo‐ and Biosensors, Universitätsstraße 31, 93053 Regensburg, Germany
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66
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Determination of 5-nitroindazole using silver solid amalgam electrode. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1346-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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67
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68
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Libansky M, Zima J, Barek J, Dejmkova H. Construction of an Electrochemical Cell System Based on Carbon Composite Film Electrodes and its Application for Voltammetric Determination of Triclosan. ELECTROANAL 2014. [DOI: 10.1002/elan.201400221] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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69
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Josypčuk O, Barek J, Josypčuk B. Electrochemical Biosensors Based on Enzymatic Reactor of Silver Solid Amalgam Powder for Measurements in Flow Systems. ELECTROANAL 2014. [DOI: 10.1002/elan.201400224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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70
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Electrochemical behaviour of 2,4-dinitrophenylhydrazi(o)ne as multi-redox centre DNA label at mercury meniscus modified silver solid amalgam electrode. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.09.147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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71
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Conditioning of renewable silver amalgam film electrode for the characterization of clothianidin and its determination in selected samples by adsorptive square-wave voltammetry. Talanta 2013; 117:242-9. [DOI: 10.1016/j.talanta.2013.08.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 08/24/2013] [Accepted: 08/28/2013] [Indexed: 11/17/2022]
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72
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Differential pulse voltammetric determination of paracetamol in tablet and urine samples at a micro-crystalline natural graphite–polystyrene composite film modified electrode. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.09.102] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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73
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Guzsvány V, Petrović J, Krstić J, Papp Z, Putek M, Bjelica L, Bobrowski A, Abramović B. Renewable silver-amalgam film electrode for voltammetric monitoring of solar photodegradation of imidacloprid in the presence of Fe/TiO2 and TiO2 catalysts. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.04.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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74
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Flow electrochemical biosensors based on enzymatic porous reactor and tubular detector of silver solid amalgam. Anal Chim Acta 2013; 778:24-30. [DOI: 10.1016/j.aca.2013.03.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 03/18/2013] [Accepted: 03/21/2013] [Indexed: 11/24/2022]
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75
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The use of copper solid amalgam electrodes for determination of the pesticide thiram. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2035-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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76
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Putek M, Guzsvány V, Tasić B, Zarębski J, Bobrowski A. Renewable Silver-Amalgam Film Electrode for Rapid Square-Wave Voltammetric Determination of Thiamethoxam Insecticide in Selected Samples. ELECTROANAL 2012. [DOI: 10.1002/elan.201200478] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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77
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Abstract
AbstractThe present review describes the recent results on the electrochemical activity of bio-guanidino compounds, such as famotidine, metformin, acyclovir, ganciclovir, zanamivir, moroxydine as well as guanidino compounds, such as S-[(2-guanidino-thiazol-4-yl)methyl]isothiourea hydrochloride, 2-guanidino-1,3-thiazole, 2-guanidinobenzimidazole. The focus is on analyzing the electrode mechanism of the guanidino compounds at the hanging mercury drop electrode and at the silver amalgam film electrode, as well as on the character of the square wave (SW) voltammetric signals. It has been stated, that the compounds can act as electrocatalysts — they are protonated and adsorbed at the surface of the electrode, after which the protonated forms of the compounds are irreversibly reduced, yielding their initial form and hydrogen. The experimental adsorption data obtained by measuring the differential capacity of the double layer, the zero charge potential, and the surface tension at the zero charge potential have established the adsorption processes underlying their electrochemical activity. The analytical application of the obtained voltammetric signals in the determination of these compounds in biological samples is also presented. This review concentrates on our own results in the context of general developments in the field.
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78
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Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0042-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractIn this study the application of home-made unmodified (GC) and bulk modified boron doped glassy carbon (GCB) electrodes for the voltammetric determination of the linuron was investigated. The electrodes were synthesized with a moderate temperature treatment (1000°C). Obtained results were compared with the electrochemical determination of the linuron using a commercial glassy carbon electrode (GC-Metrohm). The peak potential (E p ) of linuron oxidation in 0.1 mol dm−3 H2SO4 as electrolyte was similar for all applied electrodes: 1.31, 1.34 and 1.28 V for GCB, GC and GC-Metrohm electrodes, respectively. Potential of linuron oxidation and current density depend on the pH of supporting electrolyte. Applying GCB and GC-Metrohm electrodes the most intensive electrochemical response for linuron was obtained in strongly acidic solution (0.1 mol dm−3 H2SO4). Applying the boron doped glassy carbon electrode the broadest linear range (0.005–0.1 µmol cm−3) for the linuron determination was obtained. The results of voltammetric determination of the linuron in spiked water samples showed good correlation between added and found amounts of linuron and also are in good agreement with the results obtained by HPLC-UV method. This appears to be the first application of a boron doped glassy carbon electrode for voltammetric determination of the environmental important compounds.
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79
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Voltammetric and amperometric determination of selected dinitronaphthalenes using single crystal silver amalgam based sensors. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.09.074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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80
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Voltammetric monitoring of electrochemical reduction of riboflavin using silver solid amalgam electrodes. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.05.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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81
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Smarzewska S, Skrzypek S, Ciesielski W. Renewable Silver Amalgam Film Electrode for the Determination of Dinotefuran in Spiked Carrot Juice Samples Using SW Voltammetry. ELECTROANAL 2012. [DOI: 10.1002/elan.201200164] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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82
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Determination of 1-hydroxypyrene in human urine by HPLC with electrochemical detection at a boron-doped diamond film electrode. Anal Bioanal Chem 2012; 404:693-9. [DOI: 10.1007/s00216-012-6140-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Revised: 05/22/2012] [Accepted: 05/22/2012] [Indexed: 01/10/2023]
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83
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Yosypchuk O, Karásek J, Vyskočil V, Barek J, Pecková K. The use of silver solid amalgam electrodes for voltammetric and amperometric determination of nitrated polyaromatic compounds used as markers of incomplete combustion. ScientificWorldJournal 2012; 2012:231986. [PMID: 22619628 PMCID: PMC3353272 DOI: 10.1100/2012/231986] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 12/05/2011] [Indexed: 11/17/2022] Open
Abstract
Genotoxic nitrated polycyclic aromatic hydrocarbons (NPAHs) are formed during incomplete combustion processes by reaction of polycyclic aromatic hydrocarbons (PAHs) with atmospheric nitrogen oxides. 1-Nitropyrene, 2-nitrofluorene, and 3-nitrofluoranthene as the dominating substances are used as markers of NPAHs formation by these processes. In the presented study, voltammetric properties and quantification of these compounds and of 5-nitroquinoline (as a representative of environmentally important genotoxic heterocyclic compounds) have been investigated using a mercury meniscus modified silver solid amalgam electrode (m-AgSAE), which represent a nontoxic alternative to traditional mercury electrodes. Linear calibration curves over three orders of magnitude and limits of determination mostly in the 10(-7) mol L(-1) concentration range were obtained using direct current and differential pulse voltammetry. Further, satisfactory HPLC separation of studied analytes in fifteen minutes was achieved using 0.01 mol L(-1) phosphate buffer, pH 7.0 : methanol (15 : 85, v/v) mobile phase, and C(18) reversed stationary phase. Limits of detection of around 1 · 10(-5) mol L(-1) were achieved using amperometric detection at m-AgSAE in wall-jet arrangement for all studied analytes. Practical applicability of this technique was demonstrated on the determination of 1-nitropyrene, 2-nitrofluorene, 3-nitrofluoranthene, and 5-nitroquinoline in drinking water after their preliminary separation and preconcentration using solid phase extraction with the limits of detection around 1 · 10(-6) mol L(-1).
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Affiliation(s)
| | | | | | | | - Karolina Pecková
- UNESCO Laboratory of Environmental Electrochemistry, Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Prague 2, Czech Republic
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84
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Skrzypek S, Smarzewska S, Ciesielski W. Determination of Blasticidin S in Spiked Rice Using SW Voltammetry with a Renewable Silver Amalgam Film Electrode. ELECTROANAL 2012. [DOI: 10.1002/elan.201100715] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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85
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References. Anal Chem 2012. [DOI: 10.1201/b11478-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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86
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Maixnerová L, Barek J, Pecková K. Thin-Layer and Wall-Jet Arrangement of Amperometric Detector with Boron-Doped Diamond Electrode: Comparison of Amperometric Determination of Aminobiphenyls in HPLC-ED. ELECTROANAL 2012. [DOI: 10.1002/elan.201100616] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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87
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TVRDIKOVA J, DANHEL A, VYSKOCIL V, BAREK J. Voltammetric Determination of Dinitronaphthalenes Using a Silver Solid Amalgam Paste Electrode. ANAL SCI 2012; 28:411-5. [DOI: 10.2116/analsci.28.411] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Jana TVRDIKOVA
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, UNESCO Laboratory of Environmental Electrochemistry
| | - Ales DANHEL
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, UNESCO Laboratory of Environmental Electrochemistry
| | - Vlastimil VYSKOCIL
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, UNESCO Laboratory of Environmental Electrochemistry
| | - Jiri BAREK
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, UNESCO Laboratory of Environmental Electrochemistry
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88
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Prussian Blue Modified Solid Carbon Nanorod Whisker Paste Composite Electrodes: Evaluation towards the Electroanalytical Sensing ofH2O2. INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY 2012. [DOI: 10.1155/2012/238419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Metallic impurity free solid carbon nanorod “Whiskers” (SCNR Whiskers), a derivative of carbon nanotubes, are explored in the fabrication of a Prussian Blue composite electrode and critically evaluated towards the mediated electroanalytical sensing of H2O2. The sensitivity and detection limits for H2O2on the paste electrodes containing 20% (w/w) Prussian Blue, mineral oil, and carbon nanorod whiskers were explored and found to be 120 mA/(M cm2) and 4.1 μM, respectively, over the concentration range 0.01 to 0.10 mM. Charge transfer constant for the 20% Prussian Blue containing SCNR Whiskers paste electrode was calculated, for the reduction of Prussian Blue to Prussian White, to reveal a value of1.8±0.2 1/s (α=0.43,N=3). Surprisingly, our studies indicate that these metallic impurity-free SCNR Whiskers, in this configuration, behave electrochemically similar to that of an electrode constructed from graphite.
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89
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Šelešovská R, Bandžuchová L, Navrátil T, Chýlková J. Voltammetric determination of leucovorin using silver solid amalgam electrode. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.11.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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90
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Voltammetric determination of the herbicide Linuron using a tricresyl phosphate-based carbon paste electrode. SENSORS 2011; 12:148-61. [PMID: 22368461 PMCID: PMC3279205 DOI: 10.3390/s120100148] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 12/05/2011] [Accepted: 12/05/2011] [Indexed: 11/17/2022]
Abstract
This paper summarises the results of voltammetric studies on the herbicide 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (Linuron), using a carbon paste electrode containing tricresyl phosphate (TCP-CPE) as liquid binder. The principal experimental conditions, such as the pH effect, investigated in Britton-Robinson buffer solutions (pH 2.0–7.0), the peak characteristics for the analyte of interest, or instrumental parameters for the differential pulse voltammetric mode were optimized for the method. As found out, the best electroanalytical performance of the TCP-CPE was achieved at pH 2.0, whereby the oxidation peak of Linuron appeared at ca. +1.3 V vs. SCE. The analytical procedure developed offers good linearity in the concentration range of 1.25–44.20 μg mL−1 (1.77 × 10−4–5.05 × 10−6 mol L−1), showing—for the first time—the applicability of the TCP-CPE for anodic oxidations in direct voltammetry (without accumulation). The method was then verified by determining Linuron in a spiked river water sample and a commercial formulation and the results obtained agreed well with those obtained by the reference HPLC/UV determination.
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91
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Daňhel A, Moreira JC, Jacob S, Barek J. Influence of the soil organic matter content on voltammetric determination of derivatised glyphosate in herbicide contaminated soils. ACTA ACUST UNITED AC 2011. [DOI: 10.1135/cccc2011086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The method for monitoring of Glyphosate (GP) in soil samples containing different organic matter content based on differential pulse voltammetry at a hanging mercury drop electrode was developed to reach higher sample preparation efficiency, its repeatability and sufficient limits of detection. The soil samples with three different organic matter contents (evaluated as total organic carbon contents 30.7, 13.0 and 6.3 g kg–1) were tested. The decreasing content of organic matter resulted in a decreasing recoveries (86, 78 and 68%, respectively), with RSD around 10%. The GP derivatised to N-nitrosoglyphosate (NO-GP) can be determined using the adopted method with limits of detection around 2 ppm in the soil samples. This method might be further utilized for routine monitoring of the GP in soil samples during investigation of its effect on the soil biota.
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92
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Deýlová D, Yosypchuk B, Vyskočil V, Barek J. Voltammetric Determination of 4-Nitrophenol and 5-Nitrobenzimidazole Using Different Types of Silver Solid Amalgam Electrodes - A Comparative Study. ELECTROANAL 2011. [DOI: 10.1002/elan.201100067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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93
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Danhel A, Yosypchuk B, Vyskocil V, Zima J, Barek J. A novel paste electrode based on a silver solid amalgam and an organic pasting liquid. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2010.11.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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94
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Alves GMS, Magalhães JMCS, Soares HMVM. Simultaneous Determination of Copper(II), Lead(II) and Zinc(II) at Bismuth Film Electrode by Multivariate Calibration. ELECTROANAL 2011. [DOI: 10.1002/elan.201000696] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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95
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The evolution of amperometric sensing from the bare to the modified electrode systems. J Solid State Electrochem 2011. [DOI: 10.1007/s10008-011-1367-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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96
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Electrochemical behavior of folic acid on mercury meniscus modified silver solid amalgam electrode. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.10.090] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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97
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Danhel A, Mansfeldova V, Janda P, Vyskocil V, Barek J. Crystallic silver amalgam – a novel electrode material. Analyst 2011; 136:3656-62. [DOI: 10.1039/c1an15342k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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98
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Vyskočil V, Navrátil T, Daňhel A, Dědík J, Krejčová Z, Škvorová L, Tvrdíková J, Barek J. Voltammetric Determination of Selected Nitro Compounds at a Polished Silver Solid Amalgam Composite Electrode. ELECTROANAL 2010. [DOI: 10.1002/elan.201000428] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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99
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Segovia-Martínez L, Moliner-Martínez Y, Campíns-Falcó P. A direct Capillary Liquid Chromatography with electrochemical detection method for determination of phenols in water samples. J Chromatogr A 2010; 1217:7926-30. [DOI: 10.1016/j.chroma.2010.10.078] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2010] [Accepted: 10/18/2010] [Indexed: 11/29/2022]
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100
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