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Rubino A, Queirós R. Electrochemical determination of heavy metal ions applying screen-printed electrodes based sensors. A review on water and environmental samples analysis. TALANTA OPEN 2023. [DOI: 10.1016/j.talo.2023.100203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
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2
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Screen-printed electrochemical sensors for environmental monitoring of heavy metal ion detection. REV CHEM ENG 2022. [DOI: 10.1515/revce-2022-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Heavy metal ions (HMIs) are known to cause severe damages to the human body and ecological environment. And considering the current alarming situation, it is crucial to develop a rapid, sensitive, robust, economical and convenient method for their detection. Screen printed electrochemical technology contributes greatly to this task, and has achieved global attention. It enabled the mass transmission rate and demonstrated ability to control the chemical nature of the measure media. Besides, the technique offers advantages like linear output, quick response, high selectivity, sensitivity and stability along with low power requirement and high signal-to-noise ratio. Recently, the performance of SPEs has been improved employing the most effective and promising method of the incorporation of different nanomaterials into SPEs. Especially, in electrochemical sensors, the incorporation of nanomaterials has gained extensive attention for HMIs detection as it exhibits outstanding features like broad electrochemical window, large surface area, high conductivity, selectivity and stability. The present review focuses on the recent progress in the field of screen-printed electrochemical sensors for HMIs detection using nanomaterials. Different fabrication methods of SPEs and their utilization for real sample analysis of HMIs using various nanomaterials have been extensively discussed. Additionally, advancement made in this field is also discussed taking help of the recent literature.
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Mohamad Nor N, Ramli NH, Poobalan H, Qi Tan K, Abdul Razak K. Recent Advancement in Disposable Electrode Modified with Nanomaterials for Electrochemical Heavy Metal Sensors. Crit Rev Anal Chem 2021; 53:253-288. [PMID: 34565248 DOI: 10.1080/10408347.2021.1950521] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Heavy metal pollution has gained global attention due to its high toxicity and non-biodegradability, even at a low level of exposure. Therefore, the development of a disposable electrode that is sensitive, simple, portable, rapid, and cost-effective as the sensor platform in electrochemical heavy metal detection is vital. Disposable electrodes have been modified with nanomaterials so that excellent electrochemical properties can be obtained. This review highlights the recent progress in the development of numerous types of disposable electrodes modified with nanomaterials for electrochemical heavy metal detection. The disposable electrodes made from carbon-based, glass-based, and paper-based electrodes are reviewed. In particular, the analytical performance, fabrication technique, and integration design of disposable electrodes modified with metal (such as gold, tin and bismuth), carbon (such as carbon nanotube and graphene), and metal oxide (such as iron oxide and zinc oxide) nanomaterials are summarized. In addition, the role of the nanomaterials in improving the electrochemical performance of the modified disposable electrodes is discussed. Finally, the current challenges and future prospect of the disposable electrode modified with nanomaterials are summarized.
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Affiliation(s)
- Noorhashimah Mohamad Nor
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Nurul Hidayah Ramli
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Hemalatha Poobalan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Kai Qi Tan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Khairunisak Abdul Razak
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia.,NanoBiotechnology Research & Innovation (NanoBRI), Institute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
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Liu N, Zhao G, Liu G. Accurate SWASV detection of Cd(II) under the interference of Pb(II) by coupling support vector regression and feature stripping currents. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Research Progress of Electrochemical Detection of Heavy Metal Ions. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/s1872-2040(21)60083-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Yin J, Chu G, Wang Y, Zhai H, Wang B, Sun X, Guo Y, Zhang Y. Novel Three‐dimensional Sensor for Rapid Detection of Pb(II) and Cd(II) in Edible Mushrooms. ELECTROANAL 2021. [DOI: 10.1002/elan.202060560] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiaqi Yin
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Guanglei Chu
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Yue Wang
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Hongguo Zhai
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Bao Wang
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Xia Sun
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Yemin Guo
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
| | - Yanyan Zhang
- School of Agricultural Engineering and Food Science Shandong University of Technology No.12 Zhangzhou Road Zibo 255049 Shandong Province China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Trace ability No. 12 Zhangzhou Road Zibo 255049 Shandong Province China
- Zibo City Key Laboratory of Agricultural Product Safety Trace ability
- Shandong Xicheng Agricultural Machinery Science and Technology Co. Ltd. Dezhou 253600 Shandong Province China
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Baile P, Vidal L, Canals A. Magnetic dispersive solid-phase extraction using ZSM-5 zeolite/Fe 2O 3 composite coupled with screen-printed electrodes based electrochemical detector for determination of cadmium in urine samples. Talanta 2020; 220:121394. [PMID: 32928414 DOI: 10.1016/j.talanta.2020.121394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022]
Abstract
A novel, simple, fast, sensitive and environmentally friendly approach is presented to determine cadmium in urine samples, combining magnetic dispersive solid-phase extraction (MDSPE) for sample preparation and screen-printed carbon electrodes (SPCEs) for square-wave anodic stripping voltammetry. This association involves the miniaturization of sample preparation and measurement process. Firstly, cadmium was extracted directly from urine samples employing a ZSM-5/Fe2O3, then, the composite enriched with cadmium was deposited onto the SPCE and finally covered with a suitable electrolyte for electrochemical detection. Thereby, the elution and detection of cadmium were carried out in a single step. To optimize experimental parameters affecting MDSPE, a two-step multivariate strategy has been employed. The method has been evaluated under optimized extraction/elution conditions (i.e., type of sorbent, ZSM-5/Fe2O3; amount of sorbent, 10 mg; sample pH, 6.8; extraction time, 5.5 min; and HCl concentration, 0.5 M) using standard addition calibration. Standard addition calibration curves gave a good linearity in the range from 0 to 30 μg L-1 with correlation coefficients ranging from 0.997 to 0.998 (N = 7). The limit of detection, evaluated empirically and statistically, ranged from 0.5 to 1.0 μg L-1 and from 0.4 to 0.8 μg L-1, respectively, which are lower than the threshold level established by the Ministry of Labour and Social Affairs (Spain) and World Health Organization for normal cadmium content in urine (i.e., 3.4 and 4.0 μg L-1, respectively). The repeatability of the proposed method was evaluated at 5 and 20 μg L-1 spiking levels obtaining coefficients of variation ranged between 12 and 15% (n = 6). A certified reference material (REC-8848/Level II) was analyzed to assess method accuracy finding 92% and 1.3 μg L-1 as the recovery (trueness) and standard deviation values, respectively. Finally, the method was applied to spiked urine samples, obtaining good agreement between spiked and found concentrations (recovery ranged from 89 to 98% and CV values ranged from 7% to 14%). Therefore, this is a new and successful contribution to the portable total analytical systems.
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Affiliation(s)
- Paola Baile
- Departamento de Química Analítica, Nutrición y Bromatología e Instituto Universitario de Materiales, Universidad de Alicante, P.O. Box 99, E-03080, Alicante, Spain
| | - Lorena Vidal
- Departamento de Química Analítica, Nutrición y Bromatología e Instituto Universitario de Materiales, Universidad de Alicante, P.O. Box 99, E-03080, Alicante, Spain.
| | - Antonio Canals
- Departamento de Química Analítica, Nutrición y Bromatología e Instituto Universitario de Materiales, Universidad de Alicante, P.O. Box 99, E-03080, Alicante, Spain.
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Coupling Square Wave Anodic Stripping Voltammetry with Support Vector Regression to Detect the Concentration of Lead in Soil under the Interference of Copper Accurately. SENSORS 2020; 20:s20236792. [PMID: 33261107 PMCID: PMC7731166 DOI: 10.3390/s20236792] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/19/2020] [Accepted: 11/25/2020] [Indexed: 12/02/2022]
Abstract
In this study, an effective method for accurately detecting Pb(II) concentration was developed by coupling square wave anodic stripping voltammetry (SWASV) with support vector regression (SVR) based on a bismuth-film modified electrode. The interference of different Cu2+ contents on the SWASV signals of Pb2+ was investigated, and a nonlinear relationship between Pb2+ concentration and the peak currents of Pb2+ and Cu2+ was determined. Thus, an SVR model with two inputs (i.e., peak currents of Pb2+ and Cu2+) and one output (i.e., Pb2+ concentration) was trained to quantify the above nonlinear relationship. The SWASV measurement conditions and the SVR parameters were optimized. In addition, the SVR mode, multiple linear regression model, and direct calibration mode were compared to verify the detection performance by using the determination coefficient (R2) and root-mean-square error (RMSE). Results showed that the SVR model with R2 and RMSE of the test dataset of 0.9942 and 1.1204 μg/L, respectively, had better detection accuracy than other models. Lastly, real soil samples were applied to validate the practicality and accuracy of the developed method for the detection of Pb2+ with approximately equal detection results to the atomic absorption spectroscopy method and a satisfactory average recovery rate of 98.70%. This paper provided a new method for accurately detecting the concentration of heavy metals (HMs) under the interference of non-target HMs for environmental monitoring.
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Silva RR, Raymundo-Pereira PA, Campos AM, Wilson D, Otoni CG, Barud HS, Costa CA, Domeneguetti RR, Balogh DT, Ribeiro SJ, Oliveira Jr. ON. Microbial nanocellulose adherent to human skin used in electrochemical sensors to detect metal ions and biomarkers in sweat. Talanta 2020; 218:121153. [DOI: 10.1016/j.talanta.2020.121153] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 02/04/2023]
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Scandurra A, Ruffino F, Urso M, Grimaldi MG, Mirabella S. Disposable and Low-Cost Electrode Based on Graphene Paper-Nafion-Bi Nanostructures for Ultra-Trace Determination of Pb(II) and Cd(II). NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1620. [PMID: 32824875 PMCID: PMC7466693 DOI: 10.3390/nano10081620] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/07/2020] [Accepted: 08/13/2020] [Indexed: 02/01/2023]
Abstract
There is a huge demand for rapid, reliable and low-cost methods for the analysis of heavy metals in drinking water, particularly in the range of sub-part per billion (ppb). In the present work, we describe the preparation, characterization and analytical performance of the disposable sensor to be employed in Square Wave Anodic Stripping Voltammetry (SWASV) for ultra-trace simultaneous determination of cadmium and lead. The electrode consists of graphene paper-perfluorosulfonic ionomer-bismuth nano-composite material. The electrode preparation implies a key step aimed to enhance the Bi3+ adsorption into nafion film, prior to the bismuth electro-deposition. Finely dispersed bismuth nanoparticles embedded in the ionomer film are obtained. The electrode was characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX), Atomic Force Microscopy (AFM), X-ray Photoelectron Spectroscopy (XPS) and Electrochemical Impedance Spectroscopy (EIS). The electrode shows a linear response in the 5-100 ppb range, a time-stability tested up to almost three months, and detection limits up to 0.1 ppb for both Pb2+ and Cd2+. The electrode preparation method is simple and low in cost and the obtained analytical performance is very competitive with the state of art for the SWASV determination of Pb2+ and Cd2+ in solution.
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Affiliation(s)
- Antonino Scandurra
- Department of Physics and Astronomy Ettore Majorana of University of Catania, via S. Sofia 64, 95123 Catania, Italy; (F.R.); (M.U.); (M.G.G.); (S.M.)
| | - Francesco Ruffino
- Department of Physics and Astronomy Ettore Majorana of University of Catania, via S. Sofia 64, 95123 Catania, Italy; (F.R.); (M.U.); (M.G.G.); (S.M.)
- Institute for Microelectronics and Microsystems of National Research Council of Italy (CNR-IMM), via S. Sofia 64, 95123 Catania, Italy
| | - Mario Urso
- Department of Physics and Astronomy Ettore Majorana of University of Catania, via S. Sofia 64, 95123 Catania, Italy; (F.R.); (M.U.); (M.G.G.); (S.M.)
| | - Maria Grazia Grimaldi
- Department of Physics and Astronomy Ettore Majorana of University of Catania, via S. Sofia 64, 95123 Catania, Italy; (F.R.); (M.U.); (M.G.G.); (S.M.)
- Institute for Microelectronics and Microsystems of National Research Council of Italy (CNR-IMM), via S. Sofia 64, 95123 Catania, Italy
| | - Salvo Mirabella
- Department of Physics and Astronomy Ettore Majorana of University of Catania, via S. Sofia 64, 95123 Catania, Italy; (F.R.); (M.U.); (M.G.G.); (S.M.)
- Institute for Microelectronics and Microsystems of National Research Council of Italy (CNR-IMM), via S. Sofia 64, 95123 Catania, Italy
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Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II). SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2283-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Rahman MM, Hussain MM, Arshad MN, Asiri AM. The synthesis and application of (E)-N′-(benzo[d]dioxol-5-ylmethylene)-4-methyl-benzenesulfonohydrazide for the detection of carcinogenic lead. RSC Adv 2020; 10:5316-5327. [PMID: 35498306 PMCID: PMC9049008 DOI: 10.1039/c9ra09080k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/26/2019] [Indexed: 11/21/2022] Open
Abstract
A sensitive cationic sensor was developed by BDMMBSH onto GCE with 5% Nafion using electrochemical method, which was validated with the selective determination of Pb2+ in spiked samples and found satisfactory results.
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | | | | | - Abdullah M. Asiri
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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Simultaneous analysis of Pb 2+ and Cd 2+ at graphene/bismuth nanocomposite film-modified pencil graphite electrode using square wave anodic stripping voltammetry. Anal Bioanal Chem 2019; 411:8113-8121. [PMID: 31768591 DOI: 10.1007/s00216-019-02193-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/17/2019] [Accepted: 10/07/2019] [Indexed: 12/30/2022]
Abstract
A graphene/bismuth nanocomposite film-modified pencil graphite electrode was quickly prepared for the simultaneous analysis of cadmium and lead heavy metal ions by square wave anodic stripping voltammetry. The pencil graphite electrode's surface was directly modified from graphite to graphene with cyclic voltammetry method in a single step by performing potential cycling between - 0.9 and - 1.4 V in 0.2 mol L-1 NaOH modifying solution. A linear relationship between peak current and concentration was obtained in the range between 5-100 μg L-1 for both Cd2+ and Pb2+, with detection limits of 0.12 μg L-1 for Cd2+ and 0.29 μg L-1 for Pb2+. The developed electrode with the proposed method has been applied to a Canadian-certified reference water sample and tap water sample with reliable results. For tap water sample, the obtained results were in a good agreement with the results provided by AAS. Graphical abstract.
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Liu X, Yao Y, Ying Y, Ping J. Recent advances in nanomaterial-enabled screen-printed electrochemical sensors for heavy metal detection. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.021] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Shi H, Zhu F, Zhou X, Li H, Yang F, Zhang X, Liu J. Large scale fabrication of disposable carbon cloth electrochemical sensors for simultaneous determination of heavy metal ion. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Ionic liquid/poly-l-cysteine composite deposited on flexible and hierarchical porous laser-engraved graphene electrode for high-performance electrochemical analysis of lead ion. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.176] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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The Effect of g-C3N4 Materials on Pb(II) and Cd(II) Detection Using Disposable Screen-Printed Sensors. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0504-0] [Citation(s) in RCA: 8] [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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Lin X, Lu Z, Dai W, Liu B, Zhang Y, Li J, Ye J. Laser engraved nitrogen-doped graphene sensor for the simultaneous determination of Cd(II) and Pb(II). J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.09.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Yousefi A, Babaei A, Delavar M. Application of modified screen-printed carbon electrode with MWCNTs-Pt-doped CdS nanocomposite as a sensitive sensor for determination of natamycin in yoghurt drink and cheese. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Hu QQ, Gao H, Wang YM, Ma W, Sun DM. Simultaneous Determination of Carmine and Amaranth Based on a Poly(L-Arginine)–Graphene Modified Electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818080051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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A Facile Electrochemical Sensor Based on PyTS⁻CNTs for Simultaneous Determination of Cadmium and Lead Ions. SENSORS 2018; 18:s18051567. [PMID: 29762494 PMCID: PMC5982567 DOI: 10.3390/s18051567] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 05/07/2018] [Accepted: 05/07/2018] [Indexed: 01/31/2023]
Abstract
A simple and easy method was implemented for the contemporary detection of cadmium (Cd2+) and lead (Pb2+) ions using 1,3,6,8-pyrenetetrasulfonic acid sodium salt-functionalized carbon nanotubes nanocomposites (PyTS⁻CNTs). The morphology and composition of the obtained PyTS⁻CNTs were characterized using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and X-ray photoelectron spectroscopy (XPS). The experimental results confirmed that the fabricated PyTS⁻CNTs exhibited good selectivity and sensitivity for metal ion-sensing owing to the insertion of sulfonic acid groups. For Cd2+ and Pb2+, some of the electrochemical sensing parameters were evaluated by varying data such as the PyTS⁻CNT quantity loaded on the pyrolytic graphite electrode (PGE), pH of the acetate buffer, deposition time, and deposition potential. These parameters were optimized with differential pulse anodic sweeping voltammetry (DPASV). Under the optimal condition, the stripping peak current of the PyTS⁻CNTs/Nafion/PGE varies linearly with the heavy metal ion concentration, ranging from 1.0 μg L-1 to 90 μg L-1 for Cd2+ and from 1.0 μg L-1 to 110 μg L-1 for Pb2+. The limits of detection were estimated to be approximately 0.8 μg L-1 for Cd2+ and 0.02 μg L-1 for Pb2+. The proposed PyTS⁻CNTs/Nafion/PGE can be used as a rapid, simple, and controllable electrochemical sensor for the determination of toxic Cd2+ and Pb2+.
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Screen-Printed Electrodes Modified with "Green" Metals for Electrochemical Stripping Analysis of Toxic Elements. SENSORS 2018; 18:s18041032. [PMID: 29596391 PMCID: PMC5948781 DOI: 10.3390/s18041032] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 12/30/2022]
Abstract
This work reviews the field of screen-printed electrodes (SPEs) modified with “green” metals for electrochemical stripping analysis of toxic elements. Electrochemical stripping analysis has been established as a useful trace analysis technique offering many advantages compared to competing optical techniques. Although mercury has been the preferred electrode material for stripping analysis, the toxicity of mercury and the associated legal requirements in its use and disposal have prompted research towards the development of “green” metals as alternative electrode materials. When combined with the screen-printing technology, such environment-friendly metals can lead to disposable sensors for trace metal analysis with excellent operational characteristics. This review focuses on SPEs modified with Au, Bi, Sb, and Sn for stripping analysis of toxic elements. Different modification approaches (electroplating, bulk modification, use of metal precursors, microengineering techniques) are considered and representative applications are described. A developing related field, namely biosensing based on stripping analysis of metallic nanoprobe labels, is also briefly mentioned.
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Point-of-need simultaneous electrochemical detection of lead and cadmium using low-cost stencil-printed transparency electrodes. Anal Chim Acta 2017; 981:24-33. [DOI: 10.1016/j.aca.2017.05.027] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 05/21/2017] [Accepted: 05/31/2017] [Indexed: 02/01/2023]
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Zhao G, Wang H, Liu G. Direct Quantification of Cd 2+ in the Presence of Cu 2+ by a Combination of Anodic Stripping Voltammetry Using a Bi-Film-Modified Glassy Carbon Electrode and an Artificial Neural Network. SENSORS 2017; 17:s17071558. [PMID: 28671628 PMCID: PMC5539607 DOI: 10.3390/s17071558] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/29/2017] [Accepted: 06/30/2017] [Indexed: 02/05/2023]
Abstract
Abstract: In this study, a novel method based on a Bi/glassy carbon electrode (Bi/GCE) for quantitatively and directly detecting Cd2+ in the presence of Cu2+ without further electrode modifications by combining square-wave anodic stripping voltammetry (SWASV) and a back-propagation artificial neural network (BP-ANN) has been proposed. The influence of the Cu2+ concentration on the stripping response to Cd2+ was studied. In addition, the effect of the ferrocyanide concentration on the SWASV detection of Cd2+ in the presence of Cu2+ was investigated. A BP-ANN with two inputs and one output was used to establish the nonlinear relationship between the concentration of Cd2+ and the stripping peak currents of Cu2+ and Cd2+. The factors affecting the SWASV detection of Cd2+ and the key parameters of the BP-ANN were optimized. Moreover, the direct calibration model (i.e., adding 0.1 mM ferrocyanide before detection), the BP-ANN model and other prediction models were compared to verify the prediction performance of these models in terms of their mean absolute errors (MAEs), root mean square errors (RMSEs) and correlation coefficients. The BP-ANN model exhibited higher prediction accuracy than the direct calibration model and the other prediction models. Finally, the proposed method was used to detect Cd2+ in soil samples with satisfactory results.
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Affiliation(s)
- Guo Zhao
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing 100083, China.
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agricultural of China, China Agricultural University, Beijing 100083, China.
| | - Hui Wang
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing 100083, China.
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agricultural of China, China Agricultural University, Beijing 100083, China.
| | - Gang Liu
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing 100083, China.
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agricultural of China, China Agricultural University, Beijing 100083, China.
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Multi-element determination of metals and metalloids in waters and wastewaters, at trace concentration level, using electroanalytical stripping methods with environmentally friendly mercury free-electrodes: A review. Talanta 2017; 175:53-68. [PMID: 28842029 DOI: 10.1016/j.talanta.2017.06.077] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 06/27/2017] [Accepted: 06/30/2017] [Indexed: 01/28/2023]
Abstract
Nowadays, water is no longer regarded as an inexhaustible resource and the excessive release and proliferation of toxic metal(loid)s into aquatic environments has become a critical issue. Therefore, fast, accurate, simple, selective, sensitive and portable methodologies to detect multiple elements in natural waters is of paramount importance. Electrochemical stripping analysis is an efficient tool for trace metal(loid)s determinations and bring new prospects for answering the current environmental concerns. This review presents a survey of the advancements made between 2003 and 2016 on the development and application of non-toxic mercury free electrodes on the simultaneous analysis of metals and metalloids in waters and wastewaters by means of electroanalytical stripping techniques. The advantages, limitations, improvements and real applications of these "green" sensors are discussed from a critical point of view.
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Flexible liquid crystal polymer-based electrochemical sensor for in-situ detection of zinc(II) in seawater. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2280-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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de Barros A, Constantino CJL, da Cruz NC, Bortoleto JRR, Ferreira M. High performance of electrochemical sensors based on LbL films of gold nanoparticles, polyaniline and sodium montmorillonite clay mineral for simultaneous detection of metal ions. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.135] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Tseliou F, Avgeropoulos A, Falaras P, Prodromidis MI. Low dimensional Bi 2 Te 3 -graphene oxide hybrid film-modified electrodes for ultra-sensitive stripping voltammetric detection of Pb(II) and Cd(II). Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.02.058] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Zhao G, Wang H, Liu G, Wang Z. Optimization of Stripping Voltammetric Sensor by a Back Propagation Artificial Neural Network for the Accurate Determination of Pb(II) in the Presence of Cd(II). SENSORS 2016; 16:s16091540. [PMID: 27657083 PMCID: PMC5038813 DOI: 10.3390/s16091540] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 08/29/2016] [Accepted: 09/07/2016] [Indexed: 02/05/2023]
Abstract
An easy, but effective, method has been proposed to detect and quantify the Pb(II) in the presence of Cd(II) based on a Bi/glassy carbon electrode (Bi/GCE) with the combination of a back propagation artificial neural network (BP-ANN) and square wave anodic stripping voltammetry (SWASV) without further electrode modification. The effects of Cd(II) in different concentrations on stripping responses of Pb(II) was studied. The results indicate that the presence of Cd(II) will reduce the prediction precision of a direct calibration model. Therefore, a two-input and one-output BP-ANN was built for the optimization of a stripping voltammetric sensor, which considering the combined effects of Cd(II) and Pb(II) on the SWASV detection of Pb(II) and establishing the nonlinear relationship between the stripping peak currents of Pb(II) and Cd(II) and the concentration of Pb(II). The key parameters of the BP-ANN and the factors affecting the SWASV detection of Pb(II) were optimized. The prediction performance of direct calibration model and BP-ANN model were tested with regard to the mean absolute error (MAE), root mean square error (RMSE), average relative error (ARE), and correlation coefficient. The results proved that the BP-ANN model exhibited higher prediction accuracy than the direct calibration model. Finally, a real samples analysis was performed to determine trace Pb(II) in some soil specimens with satisfactory results.
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Affiliation(s)
- Guo Zhao
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing 100083, China.
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agricultural of China, China Agricultural University, Beijing 100083, China.
| | - Hui Wang
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing 100083, China.
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agricultural of China, China Agricultural University, Beijing 100083, China.
| | - Gang Liu
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing 100083, China.
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agricultural of China, China Agricultural University, Beijing 100083, China.
| | - Zhiqiang Wang
- College of Computer Science and Technology, Shandong University of Technology, Zibo 255049, China.
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