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Grabarczyk M, Wardak C. Effect of Temperature on the Removal of Interferences in the Voltammetric Procedure for the Determination of Cr(VI). MATERIALS (BASEL, SWITZERLAND) 2024; 17:3050. [PMID: 38998132 PMCID: PMC11242377 DOI: 10.3390/ma17133050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/08/2024] [Accepted: 06/17/2024] [Indexed: 07/14/2024]
Abstract
The aim of this paper was to investigate the effect of temperature on the removal efficiency of surfactant-induced interferences. Surfactants were removed as a result of mixing with XAD-7 resin. The study was carried out using the example of Cr(VI) determination by adsorption stripping voltammetry (AdSV). Measurements were carried out using a solution containing Cr(VI), acetate buffer (pH = 6.2), DTPA, KNO3, and different surfactants. Ten mL of the solution was mixed with 0.5 g of XAD-7 resin at different temperatures for 5 min prior to voltammetric measurement. The effect of the mixing temperature of the sample with the resin on the voltammetric Cr(VI) signal in the presence of different surfactants was studied in the range from 20 to 60 °C. The proposed method of removing interference from surfactants by mixing the sample with the XAD-7 resin at 60 °C was used for the determination of trace amounts of Cr(VI) in river water containing non-ionic, anionic, cationic surfactants, and biosurfactants.
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Affiliation(s)
- Malgorzata Grabarczyk
- Department of Analytical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland;
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Grabarczyk M, Fialek M. Microelectrode Voltammetric Analysis of Low Concentrations of Se(IV) Ions in Environmental Waters. Molecules 2024; 29:1583. [PMID: 38611862 PMCID: PMC11013906 DOI: 10.3390/molecules29071583] [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: 02/20/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
The current research is an attempt to analyze on-site selenium(IV) ions in environmental water samples using an eco-friendly miniaturized sensor developed by deposition of a very thin amount of metallic bismuth in a solid Bi electrode tightly closed in miniaturized housing. Numerous experimental variables are optimized, including the composition of the supporting electrolyte and its pH, as well as activation and accumulation conditions. Under optimized measurement conditions, the method shows high sensitivity, permitting a very low limit of detection equal to 7 × 10-10 mol L-1 to be achieved in a short accumulation time of 50 s. The performance of this microsensor was investigated against numerous interference factors and its good anti-interference capability was demonstrated. A series of voltammetric experiments by differential pulse cathodic stripping voltammetry (DPCSV) were carried out and they proved that the miniaturized sensor is characterized by very good accuracy and precision as well as long-term stability. The solid bismuth microelectrode displays a good voltammetric response in the analysis of diverse samples with a complex matrix and demonstrates a good recovery rate.
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Affiliation(s)
| | - Marzena Fialek
- Department of Analytical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland;
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Voltammetric Quantification of Anti-Cancer Antibiotic Bleomycin Using an Electrochemically Pretreated and Decorated with Lead Nanoparticles Screen-Printed Sensor. Int J Mol Sci 2022; 24:ijms24010472. [PMID: 36613924 PMCID: PMC9820353 DOI: 10.3390/ijms24010472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/29/2022] Open
Abstract
In this paper, we report a highly sensitive voltammetric sensor for the determination of the anti-cancer antibiotic bleomycin (BLM) based on a screen-printed carbon sensor that is electrochemically pretreated and decorated with lead nanoparticles in the sample solution (pSPCE/PbNPs). These sensor surface manipulations contribute to significant amplification of the analytical signal and improvement of its shape and repeatability. The effect of the electrochemical behavior of BLM on the pSPCE/PbNPs was examined by electrochemical strategies. CV, EIS, and XPS were used to compare the sensor surface modifications. The effects of the type and pH of the supporting electrolyte and the procedure parameters were optimized. The features of the proposed procedure include: (a) very low limits of detection and quantification (2.8 × 10-11 and 9.3 × 10-11 M, respectively), (b) linear ranges (1.0 × 10-10-2.0 × 10-9 M and 2.0 × 10-9-2.0 × 10-8 M, and (c) a high sensitivity of 0.32 µA/nM. The electrochemical sensor was successfully applied for the determination of BLM in wastewater and reference material of human urine samples.
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Tyszczuk-Rotko K, Gorylewski D, Kozak J. Supporting Electrolyte Manipulation for Simple Improvement of the Sensitivity of Trace Vanadium(V) Determination at a Lead-Coated Glassy Carbon Electrode. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22218209. [PMID: 36365906 PMCID: PMC9659227 DOI: 10.3390/s22218209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/19/2022] [Accepted: 10/23/2022] [Indexed: 06/01/2023]
Abstract
The paper presents a very simple way to extremely improve the sensitivity of trace V(V) determination. The application of a new supporting electrolyte composition (CH3COONH4, CH3COOH, and NH4Cl) instead of the commonly used acetate buffer (CH3COONa and CH3COOH) significantly enhanced the adsorptive stripping voltammetric signal of vanadium(V) at the lead-coated glassy carbon electrode (GCE/PbF). A higher enhancement was attained in the presence of cupferron as a complexing agent (approximately 10 times V(V) signal amplification) than in the case of chloranilic acid and bromate ions (approximately 0.5 times V(V) signal amplification). Therefore, the adsorptive stripping voltammetric system with the accumulation of V(V)-cupferron complexes at -1.1 V for 15 s in the buffer solution (CH3COONH4, CH3COOH, and NH4Cl) of pH = 5.6 ± 0.1 was selected for the development of a simple and extremely sensitive V(V) analysis procedure. Under optimized conditions, the sensitivity of the procedure was 6.30 µA/nmol L-1. The cathodic peak current of V(V) was directly proportional to its concentration in the ranges of 1.0 × 10-11 to 2.0 × 10-10 mol L-1 and 2.0 × 10-10 to 1.0 × 10-8 mol L-1. Among the electrochemical procedures, the lowest detection limit (2.8 × 10-12 mol L-1) of V(V) was obtained for the shortest accumulation time (15 s). The high accuracy of the procedure was confirmed on the basis of the analysis of certified reference material (estuarine water) and river water samples.
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Electrochemical sensor for uranium monitoring in natural water based on poly Nile blue modified glassy carbon electrode. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-021-05102-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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First Screen-Printed Sensor (Electrochemically Activated Screen-Printed Boron-Doped Diamond Electrode) for Quantitative Determination of Rifampicin by Adsorptive Stripping Voltammetry. MATERIALS 2021; 14:ma14154231. [PMID: 34361425 PMCID: PMC8347414 DOI: 10.3390/ma14154231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 01/28/2023]
Abstract
In this paper, a screen-printed boron-doped electrode (aSPBDDE) was subjected to electrochemical activation by cyclic voltammetry (CV) in 0.1 M NaOH and the response to rifampicin (RIF) oxidation was used as a testing probe. Changes in surface morphology and electrochemical behaviour of RIF before and after the electrochemical activation of SPBDDE were studied by scanning electron microscopy (SEM), CV and electrochemical impedance spectroscopy (EIS). The increase in number and size of pores in the modifier layer and reduction of charge transfer residence were likely responsible for electrochemical improvement of the analytical signal from RIF at the SPBDDE. Quantitative analysis of RIF by using differential pulse adsorptive stripping voltammetry in 0.1 mol L−1 solution of PBS of pH 3.0 ± 0.1 at the aSPBDDE was carried out. Using optimized conditions (Eacc of −0.45 V, tacc of 120 s, ΔEA of 150 mV, ν of 100 mV s−1 and tm of 5 ms), the RIF peak current increased linearly with the concentration in the four ranges: 0.002–0.02, 0.02–0.2, 0.2–2.0, and 2.0–20.0 nM. The limits of detection and quantification were calculated at 0.22 and 0.73 pM. The aSPBDDE showed satisfactory repeatability, reproducibility, and selectivity towards potential interferences. The applicability of the aSPBDDE for control analysis of RIF was demonstrated using river water samples and certified reference material of bovine urine.
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Kozak J, Tyszczuk-Rotko K, Wójciak M, Sowa I. Electrochemically Activated Screen-Printed Carbon Sensor Modified with Anionic Surfactant (aSPCE/SDS) for Simultaneous Determination of Paracetamol, Diclofenac and Tramadol. MATERIALS 2021; 14:ma14133581. [PMID: 34206920 PMCID: PMC8269727 DOI: 10.3390/ma14133581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/18/2022]
Abstract
In this work, an electrochemically activated screen-printed carbon electrode modified with sodium dodecyl sulfate (aSPCE/SDS) was proposed for the simultaneous determination of paracetamol (PA), diclofenac (DF), and tramadol (TR). Changes of surface morphology and electrochemical behaviour of the electrode after the electrochemical activation with H2O2 and SDS surface modification were studied by scanning electron microscopy (SEM), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The influence of various parameters on the responses of the aSPCE/SDS such as pH and concentration of the buffer, SDS concentration, and techniques parameters were investigated. Using optimised conditions (Eacc. of −0.4 V, tacc. of 120 s, ΔEA of 150 mV, ν of 250 mV s−1, and tm of 10 ms), the aSPCE/SDS showed a good linear response in the concentration ranges of 5.0 × 10−8–2.0 × 10−5 for PA, 1.0 × 10−9–2.0 × 10−7 for DF, and 1.0 × 10−8–2.0 × 10−7 and 2.0 × 10−7–2.0 × 10−6 mol L−1 for TR. The limits of detection obtained during the simultaneous determination of PA, DF, and TR are 1.49 × 10−8 mol L−1, 2.10 × 10−10 mol L−1, and 1.71 × 10−9 mol L−1, respectively. The selectivity of the aSPCE/SDS was evaluated by examination of the impact of some inorganic and organic substances that are commonly present in environmental and biological samples on the responses of PA, DF, and TR. Finally, the differential pulse adsorptive stripping voltammetric (DPAdSV) procedure using the aSPCE/SDS was successfully applied for the determination of PA, DF, and TR in river water and serum samples as well as pharmaceuticals.
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Affiliation(s)
- Jędrzej Kozak
- Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University in Lublin, 20-031 Lublin, Poland;
| | - Katarzyna Tyszczuk-Rotko
- Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University in Lublin, 20-031 Lublin, Poland;
- Correspondence: (K.T.-R.); (M.W.)
| | - Magdalena Wójciak
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland;
- Correspondence: (K.T.-R.); (M.W.)
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland;
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Shi S, Wu H, Zhang L, Wang S, Xiong P, Qin Z, Chu M, Liao J. Gold nanoparticles based electrochemical sensor for sensitive detection of uranyl in natural water. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Simultaneous Analysis of Paracetamol and Diclofenac Using MWCNTs-COOH Modified Screen-Printed Carbon Electrode and Pulsed Potential Accumulation. MATERIALS 2020; 13:ma13143091. [PMID: 32664310 PMCID: PMC7412038 DOI: 10.3390/ma13143091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 11/17/2022]
Abstract
A differential-pulse adsorptive stripping voltammetric (DPAdSV) procedure with the use of pulsed potential accumulation and carboxyl functionalized multiwalled carbon nanotubes modified screen-printed carbon electrode (SPCE/MWCNTs-COOH) was delineated for simultaneous analysis of paracetamol (PA) and diclofenac (DF). The use of carboxyl functionalized MWCNTs and pulsed potential accumulation improves the analytical signals of PA and DF, and minimizes interferences from surfactants. After optimization of analytical conditions for this sensor, the peak currents of the two compounds were found to increase linearly with the increase in their concentration (5.0 × 10-9-5.0 × 10-6 mol L-1 with a detection limit of 1.4 × 10-9 mol L-1 for PA, and 1.0 × 10-10-2.0 × 10-8 mol L-1 with a detection limit of 3.0 × 10-11 mol L-1 for DF). For the first time, the electrochemical sensor allows simultaneous determination of PA and DF at concentrations of 24.3 ± 0.5 nmol L-1 and 3.7 ± 0.7 nmol L-1, respectively, in wastewater samples purified in a sewage treatment plant.
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Gęca I, Ochab M, Korolczuk M. Application of a solid lead microelectrode as a new voltammetric sensor for adsorptive stripping voltammetry of U(VI). Talanta 2020; 207:120309. [PMID: 31594614 DOI: 10.1016/j.talanta.2019.120309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/29/2019] [Accepted: 08/31/2019] [Indexed: 11/28/2022]
Abstract
For the first time solid lead microelectrode was utilized for analytical purposes: the article reports on its application for adsorptive stripping voltammetric determination of U(VI) ions. The proposed solid metal microelectrode of a diameter of 25 μm contains about 30 μg of metallic lead that significantly restricts amount of toxic lead introduced into the environment in comparison to lead film equivalents. The potential window of the proposed sensor was checked by means of cyclic voltammetry. The optimization of the analytical procedure of determination of U(VI) ions complexed with cupferron was performed. The experimental parameters (potential of microelectrode activation, pH of supporting electrolyte, complexing agent concentration, potential and time of accumulation and effects of possible interferences) were studied. A linear calibration graph for U(VI) determination was linear in the range from 2 × 10-9 to 1 × 10-7 mol L-1 (accumulation time of 120 s). The obtained detection limit for uranium ions determination following accumulation time of 120 s was 5.5 × 10-10 mol L-1. Repeatability of the method calculated as RSD % for U(VI) concentration of 2 × 10-8 mol L-1 was 4.7% (n = 5). The proposed procedure was successfully applied for U(VI) ions determination in lake water certified reference material that confirms analytical application.
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Affiliation(s)
- Iwona Gęca
- Faculty of Chemistry, Maria Curie Sklodowska University, 20-031, Lublin, Poland.
| | - Mateusz Ochab
- Faculty of Chemistry, Maria Curie Sklodowska University, 20-031, Lublin, Poland
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Zhou Z, Zhou Y, Liang X, Xie F, Liu S, Ma J. Sensitive detection of uranium in water samples using differential pulse adsorptive stripping voltammetry on glassy carbon electrode. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06892-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Domańska K, Tyszczuk-Rotko K. Integrated three-electrode screen-printed sensor modified with bismuth film for voltammetric determination of thallium(I) at the ultratrace level. Anal Chim Acta 2018; 1036:16-25. [PMID: 30253827 DOI: 10.1016/j.aca.2018.06.078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/19/2018] [Accepted: 06/29/2018] [Indexed: 10/28/2022]
Abstract
In the present paper, for the first time, the integrated three-electrode screen-printed sensor with in situ plated bismuth film carbon working electrode was applied for the ultratrace determination of thallium(I) (Tl(I)). Under optimized conditions extremely low limits of detection were reached, 8.47 × 10-10 and 6.71 × 10-12 mol L-1 for the deposition times of 60 s and 300 s, respectively. The influences of foreign metal ions and surfactants on the voltammetric signal of thallium in natural samples were minimized using 1 × 10-5 mol L-1 EDTA and Amberlite XAD-7 resin added to the buffer solution (CH3COONH4, CH3COOH and NH4Cl) of pH = 4.6 ± 0.1. The developed voltammetric method with integrated three-electrode screen-printed sensor was validated with use of certified reference materials (surface, rain and natural water) and can be in future applied to field analyses of Tl(I).
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Affiliation(s)
- K Domańska
- Department of Analytical Chemistry and Instrumental Analysis, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland
| | - K Tyszczuk-Rotko
- Department of Analytical Chemistry and Instrumental Analysis, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland.
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Nieszporek J, Nieszporek K. Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170278] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jolanta Nieszporek
- Department of Analytical Chemistry and Instrumental Analysis, Maria Curie-Skłodowska University, Lublin, Poland
| | - Krzysztof Nieszporek
- Department of Theoretical Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
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Development simple and sensitive voltammetric procedure for ultra-trace determination of U(VI). Talanta 2017; 165:474-481. [DOI: 10.1016/j.talanta.2016.12.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 12/22/2016] [Accepted: 12/23/2016] [Indexed: 11/18/2022]
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Zhang L, Wang CZ, Tang HB, Wang L, Liu YS, Zhao YL, Chai ZF, Shi WQ. Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.087] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Grabarczyk M, Koper A. Simultaneous quantification of Bi(III) and U(VI) in environmental water samples with a complicated matrix containing organic compounds. ENVIRONMENTAL MONITORING AND ASSESSMENT 2013; 185:5515-5522. [PMID: 23108710 PMCID: PMC3667356 DOI: 10.1007/s10661-012-2963-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 10/15/2012] [Indexed: 06/01/2023]
Abstract
Trace amounts of bismuth(III) and uranium(VI) can be simultaneously determined in a single scan by adsorptive cathodic stripping voltammetry in the presence of cupferron as a complexing agent. Optimal conditions were found to be: 0.1 mol L(-1) acetate buffer (pH 5.3), 5 × 10(-5) mol L(-1) cupferron, accumulation potential of -0.25 V, and accumulation time of 30 s. The linear range of Bi(III) and U(VI) was observed over the concentration range from 2 × 10(-9) to 2 × 10(-7) mol L(-1) and from 1 × 10(-8) to 5 × 10(-7) mol L(-1), respectively. The influence of the main components of real water samples such as foreign ions and organic substances (surface active substances, humic substances) was precisely investigated. The method was applied to the simultaneous measurements of bismuth and uranium in natural water samples.
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Shrivastava A, Sharma J, Soni V. Various electroanalytical methods for the determination of uranium in different matrices. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.bfopcu.2012.09.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Koper A, Grabarczyk M. Simultaneous voltammetric determination of trace bismuth(III) and cadmium(II) in water samples by adsorptive stripping voltammetry in the presence of cupferron. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.05.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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