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Li X, Fu YH, Wei N, Yu RJ, Bhatti H, Zhang L, Yan F, Xia F, Ewing AG, Long YT, Ying YL. Emerging Data Processing Methods for Single-Entity Electrochemistry. Angew Chem Int Ed Engl 2024; 63:e202316551. [PMID: 38411372 DOI: 10.1002/anie.202316551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/12/2024] [Accepted: 02/26/2024] [Indexed: 02/28/2024]
Abstract
Single-entity electrochemistry is a powerful tool that enables the study of electrochemical processes at interfaces and provides insights into the intrinsic chemical and structural heterogeneities of individual entities. Signal processing is a critical aspect of single-entity electrochemical measurements and can be used for data recognition, classification, and interpretation. In this review, we summarize the recent five-year advances in signal processing techniques for single-entity electrochemistry and highlight their importance in obtaining high-quality data and extracting effective features from electrochemical signals, which are generally applicable in single-entity electrochemistry. Moreover, we shed light on electrochemical noise analysis to obtain single-molecule frequency fingerprint spectra that can provide rich information about the ion networks at the interface. By incorporating advanced data analysis tools and artificial intelligence algorithms, single-entity electrochemical measurements would revolutionize the field of single-entity analysis, leading to new fundamental discoveries.
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Affiliation(s)
- Xinyi Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Ying-Huan Fu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Nannan Wei
- School of Electronic Science and Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Ru-Jia Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, P. R. China
- Chemistry and Biomedicine Innovation Center, Nanjing University, 210023, Nanjing, P. R. China
| | - Huma Bhatti
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Limin Zhang
- School of Electronic Science and Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Feng Yan
- School of Electronic Science and Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 430034, Wuhan, P. R. China
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, 41296, Gothenburg, Sweden
| | - Yi-Tao Long
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, P. R. China
| | - Yi-Lun Ying
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, P. R. China
- Chemistry and Biomedicine Innovation Center, Nanjing University, 210023, Nanjing, P. R. China
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2
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Di Masi S, De Benedetto GE, Malitesta C. Optimisation of electrochemical sensors based on molecularly imprinted polymers: from OFAT to machine learning. Anal Bioanal Chem 2024; 416:2261-2275. [PMID: 38117322 DOI: 10.1007/s00216-023-05085-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
Molecularly imprinted polymers (MIPs) rely on synthetic engineered materials able to selectively bind and intimately recognise a target molecule through its size and functionalities. The way in which MIPs interact with their targets, and the magnitude of this interaction, is closely linked to the chemical properties derived during the polymerisation stages, which tailor them to their specific target. Hence, MIPs are in-deep studied in terms of their sensitivity and cross-reactivity, further being used for monitoring purposes of analytes in complex analytical samples. As MIPs are involved in sensor development within different approaches, a systematic optimisation and rational data-driven sensing is fundamental to obtaining a best-performant MIP sensor. In addition, the closer integration of MIPs in sensor development requires that the inner properties of the materials in terms of sensitivity and selectivity are maintained in the presence of competitive molecules, which focus is currently opened. Identifying computational models capable of predicting and reporting the best-performant configuration of electrochemical sensors based on MIPs is of immense importance. The application of chemometrics using design of experiments (DoE) is nowadays increasingly adopted during optimisation problems, which largely reduce the number of experimental trials. These approaches, together with the emergent machine learning (ML) tool in sensor data processing, represent the future trend in design and management of point-of-care configurations based on MIP sensing. This review provides an overview on the recent application of chemometrics tools in optimisation problems during development and analytical assessment of electrochemical sensors based on MIP receptors. A comprehensive discussion is first presented to cover the recent advancements on response surface methodologies (RSM) in optimisation studies of MIPs design. Therefore, the recent advent of machine learning in sensor data processing will be focused on MIPs development and analytical detection in sensors.
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Affiliation(s)
- Sabrina Di Masi
- Laboratorio di Chimica Analitica, Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Lecce, Italy
| | - Giuseppe Egidio De Benedetto
- Laboratorio di Spettrometria di Massa Analitica e Isotopica, Dipartimento di Beni Culturali, Università del Salento, Lecce, Italy
| | - Cosimino Malitesta
- Laboratorio di Chimica Analitica, Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Lecce, Italy.
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3
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Darío Pierini G, Andrés Bortolato S, Noel Robledo S, Raquel Alcaraz M, Fernández H, Casimiro Goicoechea H, Alicia Zon M. Second-order electrochemical data generation to quantify carvacrol in oregano essential oils. Food Chem 2022; 368:130840. [PMID: 34450499 DOI: 10.1016/j.foodchem.2021.130840] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/17/2021] [Accepted: 08/09/2021] [Indexed: 12/28/2022]
Abstract
A novel analytical method using voltammetric second-order modeling based on multivariate curve resolution-alternating least-square (MCR-ALS) is presented for the first time for the quantitation of carvacrol (CAR) in oregano essential oils (OEO). The second-order cyclic voltammetry data were generated on the basis that CAR shows a diffusional system. Thus, the scan rate (v) was used as a second instrumental mode and cyclic voltammograms at different v were acquired for a single sample, generating the second-order data. CAR determination was performed in presence of thymol, included as a potential interferent. Results demonstrated that MCR-ALS successfully exploited the second-order advantage and the recoveries were not statistically different than 100%. The limits of detection and quantitation were estimated using the MCR-ALS which were 6.27 × 10-5°mol°L-1°and 1.90 × 10-4°mol L-1, respectively. Finally, the developed methodology was implemented to quantify of CAR in OEO samples.
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Affiliation(s)
- Gastón Darío Pierini
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina.
| | - Santiago Andrés Bortolato
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina; Instituto de Química Rosario (IQUIR, CONICET-UNR), Suipacha 570 (S2002LRL), Rosario, Argentina.
| | - Sebastian Noel Robledo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina; Departamento de Tecnología Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ingeniería, Universidad Nacional de Río Cuarto, Agencia Postal N°3 (5800), Río Cuarto, Argentina.
| | - Mirta Raquel Alcaraz
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina; Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral-CONICET, Ciudad Universitaria, Santa Fe S3000ZAA, Argentina.
| | - Héctor Fernández
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina.
| | - Héctor Casimiro Goicoechea
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina; Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral-CONICET, Ciudad Universitaria, Santa Fe S3000ZAA, Argentina.
| | - María Alicia Zon
- Departamento de Química, Grupo GEANA, Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS), Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA C1425FQB, Argentina.
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4
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Determination of stability constants of mercury(II) by garlic organosulfur ligands with differential pulse voltammetry. J APPL ELECTROCHEM 2021. [DOI: 10.1007/s10800-021-01577-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Kotliar-Shapirov A, Fedorov FS, Ouerdane H, Evlashin S, Nasibulin AG, Stevenson KJ. Chemical space mapping for multicomponent gas mixtures. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Moghtader M, Bahram M, Farhadi K. Derivative Linear Sweep Voltammetry and Discrete Wavelet Transform for the Simultaneous Determination of Codeine and Thebaine by Artificial Neural Networks. ChemistrySelect 2021. [DOI: 10.1002/slct.202101222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mehdi Moghtader
- Department of Analytical Chemistry Faculty of Chemistry Urmia University Urmia Iran
| | - Morteza Bahram
- Department of Analytical Chemistry Faculty of Chemistry Urmia University Urmia Iran
| | - Khalil Farhadi
- Department of Analytical Chemistry Faculty of Chemistry Urmia University Urmia Iran
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7
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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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8
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Continuous monitoring of propofol in human serum with fouling compensation by support vector classifier. Biosens Bioelectron 2021; 171:112666. [PMID: 33069958 DOI: 10.1016/j.bios.2020.112666] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 11/22/2022]
Abstract
We present a new method for electrochemical sensing, which compensates the fouling effect of propofol through machine learning (ML) model. Direct and continuous monitoring of propofol is crucial in the development of automatic systems for control of drug infusion in anaesthesiology. The fouling effect on electrodes discourages the possibility of continuous online monitoring of propofol since polymerization of the surface produces sensor drift. Several approaches have been proposed to limit the phenomenon at the biochemical interface; instead, here, we present a novel ML-based calibration procedure. In this paper, we analyse a dataset of 600 samples acquired through staircase cyclic voltammetry (SCV), resembling the scenario of continuous monitoring of propofol, both in PBS and in undiluted human serum, to demonstrate that ML-based model solves electrode fouling of anaesthetics. The proposed calibration approach is based on Gaussian radial basis function support vector classifier (RBF-SVC) that achieves classification accuracy of 98.9% in PBS, and 100% in undiluted human serum. The results prove the ability of the ML-based model to correctly classify propofol concentration in the therapeutic range between 1μM and 60μM with levels of 10μM, continuously up to ten minutes, with one sample every 30s.
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Serrano N, Pérez-Ràfols C, Ariño C, Esteban M, Manuel Díaz-Cruz J. MCR-ALS of voltammetric data for the study of environmentally relevant substances. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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Analyzing the anodic stripping square wave voltammetry of heavy metal ions via machine learning: Information beyond a single voltammetric peak. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113934] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Díaz-Cruz JM, Serrano N, Pérez-Ràfols C, Ariño C, Esteban M. Electroanalysis from the past to the twenty-first century: challenges and perspectives. J Solid State Electrochem 2020; 24:2653-2661. [PMID: 32837295 PMCID: PMC7306008 DOI: 10.1007/s10008-020-04733-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022]
Abstract
A personal mini-review is presented on the history of electroanalysis and on their present achievements and future challenges. The manuscript is written from the subjective view of two generations of electroanalytical chemists that have witnessed for many years the evolution of this discipline.
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Affiliation(s)
- José Manuel Díaz-Cruz
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
| | - Núria Serrano
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
| | - Clara Pérez-Ràfols
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-10044 Stockholm, Sweden
| | - Cristina Ariño
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
| | - Miquel Esteban
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
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12
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Tapia MA, Pérez-Ràfols C, Ariño C, Serrano N, Díaz-Cruz JM. New Approach to Multivariate Standard Addition Based on Multivariate Curve Resolution by Alternating Least-Squares: Application to Voltammetric Data. Anal Chem 2020; 92:3396-3402. [PMID: 31951120 DOI: 10.1021/acs.analchem.9b05477] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A multivariate version of the classical univariate standard addition method is proposed for the analysis of samples generating overlapping signals in the presence of notorious matrix effects. Unlike previous versions based on multivariate calibration by partial least-squares (PLS), the proposed strategy takes advantage of a self-modeling methodology: multivariate curve resolution by alternating least-squares (MCR-ALS) enhanced with signal shape constraints based on parametric functions. In this way, there is no need for the full multivariate response of a blank solution, and in multianalyte determinations, the standard additions can be made with a solution containing all of the analytes, which constitutes a clear advance as compared to PLS approach. The proposed method has been successfully tested in the voltammetric determination of hydroquinone and catechol in solutions of increasing complexity and appears to be a promising tool in the field of electroanalysis.
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Affiliation(s)
- María A Tapia
- Departament d'Enginyeria Quı́mica i Quı́mica Analı́tica. Facultat de Quı́mica , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain
| | - Clara Pérez-Ràfols
- Departament d'Enginyeria Quı́mica i Quı́mica Analı́tica. Facultat de Quı́mica , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain
| | - Cristina Ariño
- Departament d'Enginyeria Quı́mica i Quı́mica Analı́tica. Facultat de Quı́mica , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain.,Institut de Recerca de l'Aigua (IdRA) , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain
| | - Núria Serrano
- Departament d'Enginyeria Quı́mica i Quı́mica Analı́tica. Facultat de Quı́mica , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain.,Institut de Recerca de l'Aigua (IdRA) , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain
| | - José Manuel Díaz-Cruz
- Departament d'Enginyeria Quı́mica i Quı́mica Analı́tica. Facultat de Quı́mica , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain.,Institut de Recerca de l'Aigua (IdRA) , Universitat de Barcelona , Martí i Franquès, 1-11 , 08028 Barcelona , Spain
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13
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Frescura LM, de Menezes BB, Duarte R, da Rosa MB. Application of multivariate analysis on naphthalene adsorption in aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:3329-3337. [PMID: 31838706 DOI: 10.1007/s11356-019-07278-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Naphthalene (NAP) is found as a pollutant in water, soil, and air, and adsorption is the most prominent removal process of this compound, among the methods studied. A study concerning the types of adsorbents and the parameters with the greatest influence on the adsorption process is interesting to direct future works on new adsorbents. The use of multivariate data analysis tools becomes an appealing way to compile data obtained from bibliographic reviews and to establish a behavior in NAP adsorption. This work aims to evaluate the parameters with greater influence on NAP adsorption process regarding adsorption capacity (qeexp) with the principal component analysis (PCA), and to group common NAP adsorbents by chemical characteristics through hierarchical cluster analysis (HCA). The variables qeexp, S, [NAP]0, T, CT, and [Ads] were used to perform PCA with correlation matrix. For the HCA, the variables S, [NAP]0, T, CT, and [Ads] with average linkage method (UPGMA) and Euclidean distance were used. Through PCA, it is possible to infer that S and [NAP]0 are the factors with greater influence in qeexp of NAP, while T, CT, and [Ads] have little correlation. PCA also shows that activated charcoal is the adsorbent with higher qeexp. HCA grouped the adsorbents into four groups by their chemical classes, except group A. Both PCA and HCA methods show themselves as potential tools to evaluate a data set of NAP adsorption processes.
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Affiliation(s)
- Lucas Mironuk Frescura
- Chemistry Department, Universidade Federal de Santa Maria - UFSM, Av Roraima, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Bryan Brummelhaus de Menezes
- Chemistry Department, Universidade Federal de Santa Maria - UFSM, Av Roraima, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Rafael Duarte
- Chemistry Department, Universidade Federal de Santa Maria - UFSM, Av Roraima, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Marcelo Barcellos da Rosa
- Chemistry Department, Universidade Federal de Santa Maria - UFSM, Av Roraima, 1000, Santa Maria, RS, 97105-900, Brazil.
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Pérez-Ràfols C, Serrano N, Ariño C, Esteban M, Díaz-Cruz JM. Voltammetric Electronic Tongues in Food Analysis. SENSORS 2019; 19:s19194261. [PMID: 31575062 PMCID: PMC6806306 DOI: 10.3390/s19194261] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/25/2019] [Accepted: 09/28/2019] [Indexed: 02/06/2023]
Abstract
A critical revision is made on recent applications of voltammetric electronic tongues in the field of food analysis. Relevant works are discussed dealing with the discrimination of food samples of different type, origin, age and quality and with the prediction of the concentration of key substances and significant indexes related to food quality.
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Affiliation(s)
- Clara Pérez-Ràfols
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain; (C.P.-R.); (N.S.); (C.A.); (M.E.)
| | - Núria Serrano
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain; (C.P.-R.); (N.S.); (C.A.); (M.E.)
- Institut de Recerca de l’Aigua (IdRA) of the University of Barcelona. Martí i Franquès 1-11, E08028 Barcelona, Spain
| | - Cristina Ariño
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain; (C.P.-R.); (N.S.); (C.A.); (M.E.)
- Institut de Recerca de l’Aigua (IdRA) of the University of Barcelona. Martí i Franquès 1-11, E08028 Barcelona, Spain
| | - Miquel Esteban
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain; (C.P.-R.); (N.S.); (C.A.); (M.E.)
- Institut de Recerca de l’Aigua (IdRA) of the University of Barcelona. Martí i Franquès 1-11, E08028 Barcelona, Spain
| | - José Manuel Díaz-Cruz
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain; (C.P.-R.); (N.S.); (C.A.); (M.E.)
- Institut de Recerca de l’Aigua (IdRA) of the University of Barcelona. Martí i Franquès 1-11, E08028 Barcelona, Spain
- Correspondence: ; Tel.: +34-93-402-1796
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Jalalvand AR, Ghobadi S, Akbari V, Goicoechea HC, Faramarzi E, Mahmoudi M. Mathematical modeling of interactions of cabergoline with human serum albumin for biosensing of human serum albumin. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2019.100297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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16
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Jalalvand AR, Ghobadi S, Goicoechea HC, Faramarzi E, Mahmoudi M. Matrix augmentation as an efficient method for resolving interaction of bromocriptine with human serum albumin: trouble shooting and simultaneous resolution. Heliyon 2019; 5:e02153. [PMID: 31388584 PMCID: PMC6667702 DOI: 10.1016/j.heliyon.2019.e02153] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/12/2019] [Accepted: 07/22/2019] [Indexed: 12/29/2022] Open
Abstract
This work reports the results of an interesting study related to the investigation of interactions of bromocriptine (BCP) with human serum albumin (HSA) by mathematicall modelling of voltammetric and spectroscopic data into an augmented data matrix and its resolution by multivariate curve resolution-alternating least squares (MCR-ALS). The quality of the results obtained by MCR-ALS was examined by MCR-BANDS and its outputs confirmed the absence of rotational ambiguities in the MCR-ALS results. BCP-HSA interactions were also modeled by molecular docking methods to verify the results obtained from experimental sections and fortunately, they were compatible. Hard modeling of the experimental data by EQUISPEC helped us to calculate the binding constant of the complex formed from BCP-HSA interactions which was in a good agreement with that of calculated from direct analysis of the experimental data. Finally, with the help of two different amperometric measurements based on BCP-HSA interactions a novel electroanalytical method was developed for biosensing of HSA in serum samples.
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Affiliation(s)
- Ali R Jalalvand
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sirous Ghobadi
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Hector C Goicoechea
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Catedra de Química Analítica I, Universidad Nacional del Litoral, Ciudad Universitaria, CC242, S3000ZAA, Santa Fe, Argentina
| | - Elahe Faramarzi
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Majid Mahmoudi
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
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17
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Jalalvand AR, Roushani M, Goicoechea HC, Rutledge DN, Gu HW. MATLAB in electrochemistry: A review. Talanta 2019; 194:205-225. [DOI: 10.1016/j.talanta.2018.10.041] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/07/2018] [Accepted: 10/09/2018] [Indexed: 10/28/2022]
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18
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Bonet-San-Emeterio M, González-Calabuig A, del Valle M. Artificial Neural Networks for the Resolution of Dopamine and Serotonin Complex Mixtures Using a Graphene-Modified Carbon Electrode. ELECTROANAL 2019. [DOI: 10.1002/elan.201800525] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marta Bonet-San-Emeterio
- Sensors and Biosensors Group, Department of Chemistry; Universitat Autònoma de Barcelona; Edifici Cn 08193 Bellaterra Barcelona Spain
| | - Andreu González-Calabuig
- Sensors and Biosensors Group, Department of Chemistry; Universitat Autònoma de Barcelona; Edifici Cn 08193 Bellaterra Barcelona Spain
| | - Manel del Valle
- Sensors and Biosensors Group, Department of Chemistry; Universitat Autònoma de Barcelona; Edifici Cn 08193 Bellaterra Barcelona Spain
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19
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Robinson M, Ounnunkad K, Zhang J, Gavaghan D, Bond A. Integration of Heuristic and Automated Parametrization of Three Unresolved Two-Electron Surface-Confined Polyoxometalate Reduction Processes by AC Voltammetry. ChemElectroChem 2018. [DOI: 10.1002/celc.201800950] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Martin Robinson
- Department of Computer Science; University of Oxford; Wolfson Building Parks Road Oxford OX1 3QD United Kingdom
| | - Kontad Ounnunkad
- School of Chemistry; Monash University; Clayton, Vic. 3800 Australia
- Department of Chemistry Faculty of Science; Chiang Mai University; Chiang Mai 50200 Thailand
| | - Jie Zhang
- School of Chemistry; Monash University; Clayton, Vic. 3800 Australia
| | - David Gavaghan
- Department of Computer Science; University of Oxford; Wolfson Building Parks Road Oxford OX1 3QD United Kingdom
| | - Alan Bond
- School of Chemistry; Monash University; Clayton, Vic. 3800 Australia
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20
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Investigation of interactions of Comtan with human serum albumin by mathematically modeled voltammetric data: A study from bio-interaction to biosensing. Bioelectrochemistry 2018; 123:162-172. [DOI: 10.1016/j.bioelechem.2018.05.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/06/2018] [Accepted: 05/08/2018] [Indexed: 11/22/2022]
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21
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Mohammadi G, Faramarzi E, Mahmoudi M, Ghobadi S, Ghiasvand AR, Goicoechea HC, Jalalvand AR. Chemometrics-assisted investigation of interactions of Tasmar with human serum albumin at a glassy carbon disk: Application to electrochemical biosensing of electro-inactive serum albumin. J Pharm Biomed Anal 2018; 156:23-35. [DOI: 10.1016/j.jpba.2018.04.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/08/2018] [Accepted: 04/14/2018] [Indexed: 12/30/2022]
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22
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González-Calabuig A, Cetó X, Del Valle M. A Voltammetric Electronic Tongue for the Resolution of Ternary Nitrophenol Mixtures. SENSORS 2018; 18:s18010216. [PMID: 29342848 PMCID: PMC5795887 DOI: 10.3390/s18010216] [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: 12/15/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 11/16/2022]
Abstract
This work reports the applicability of a voltammetric sensor array able to quantify the content of 2,4-dinitrophenol, 4-nitrophenol, and picric acid in artificial samples using the electronic tongue (ET) principles. The ET is based on cyclic voltammetry signals, obtained from an array of metal disk electrodes and a graphite epoxy composite electrode, compressed using discrete wavelet transform with chemometric tools such as artificial neural networks (ANNs). ANNs were employed to build the quantitative prediction model. In this manner, a set of standards based on a full factorial design, ranging from 0 to 300 mg·L-1, was prepared to build the model; afterward, the model was validated with a completely independent set of standards. The model successfully predicted the concentration of the three considered phenols with a normalized root mean square error of 0.030 and 0.076 for the training and test subsets, respectively, and r ≥ 0.948.
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Affiliation(s)
- Andreu González-Calabuig
- Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain.
| | - Xavier Cetó
- Future Industries Institute, University of South Australia, SA 5095 Adelaide, Australia.
| | - Manel Del Valle
- Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain.
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23
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Borazjani M, Mehdinia A, Jabbari A. Betamethasone-based chiral electrochemical sensor coupled to chemometric methods for determination of mandelic acid enantiomers. J Mol Recognit 2017; 30. [DOI: 10.1002/jmr.2653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 04/29/2017] [Accepted: 06/12/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Marjan Borazjani
- Department of Chemistry, Faculty of Science; K. N. Toosi University of Technology; Tehran Iran
| | - Ali Mehdinia
- Department of Marine Living Science, Ocean Sciences Research Center; Iranian National Institute for Oceanography and Atmospheric Science; Tehran Iran
| | - Ali Jabbari
- Department of Chemistry, Faculty of Science; K. N. Toosi University of Technology; Tehran Iran
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24
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Jalalvand AR, Goicoechea HC. Applications of electrochemical data analysis by multivariate curve resolution-alternating least squares. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.01.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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25
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Simultaneous determination of ascorbic and uric acids and dopamine in human serum samples using three-way calibration with data from square wave voltammetry. Microchem J 2016. [DOI: 10.1016/j.microc.2016.07.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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González-Calabuig A, Cetó X, Del Valle M. Electronic tongue for nitro and peroxide explosive sensing. Talanta 2016; 153:340-6. [PMID: 27130125 DOI: 10.1016/j.talanta.2016.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 11/30/2022]
Abstract
This work reports the application of a voltammetric electronic tongue (ET) towards the simultaneous determination of both nitro-containing and peroxide-based explosive compounds, two families that represent the vast majority of compounds employed either in commercial mixtures or in improvised explosive devices. The multielectrode array was formed by graphite, gold and platinum electrodes, which exhibited marked mix-responses towards the compounds examined; namely, 1,3,5-trinitroperhydro-1,3,5-triazine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), pentaerythritol tetranitrate (PETN), 2,4,6-trinitrotoluene (TNT), N-methyl-N,2,4,6-tetranitroaniline (Tetryl) and triacetone triperoxide (TATP). Departure information was the set of voltammograms, which were first analyzed by means of principal component analysis (PCA) allowing the discrimination of the different individual compounds, while artificial neural networks (ANNs) were used for the resolution and individual quantification of some of their mixtures (total normalized root mean square error for the external test set of 0.108 and correlation of the obtained vs. expected concentrations comparison graphs r>0.929).
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Affiliation(s)
- Andreu González-Calabuig
- Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain
| | - Xavier Cetó
- Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain
| | - Manel Del Valle
- Sensors and Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain.
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27
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Pedroza RHP, Serrano N, Díaz-Cruz JM, Ariño C, Esteban M. Integration of Commercial Screen-printed Electrodes into a Voltammetric Electronic Tongue for the Analysis of Aminothiols. ELECTROANAL 2016. [DOI: 10.1002/elan.201501112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ricardo H. P. Pedroza
- Biological Chemistry and Chemometrics; Institute of Chemistry; Federal University of Rio Grande do Norte; 59072-970 Natal-RN Brazil
| | - Núria Serrano
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
| | - José Manuel Díaz-Cruz
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
| | - Cristina Ariño
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
| | - Miquel Esteban
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
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28
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Bioelectronic tongues: New trends and applications in water and food analysis. Biosens Bioelectron 2015; 79:608-26. [PMID: 26761617 DOI: 10.1016/j.bios.2015.12.075] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 12/11/2015] [Accepted: 12/21/2015] [Indexed: 11/23/2022]
Abstract
Over the last years, there has been an increasing demand for fast, highly sensitive and selective methods of analysis to meet new challenges in environmental monitoring, food safety and public health. In response to this demand, biosensors have arisen as a promising tool, which offers accurate chemical data in a timely and cost-effective manner. However, the difficulty to obtain sensors with appropriate selectivity and sensitivity for a given analyte, and to solve analytical problems which do not require the quantification of a certain analyte, but an overall effect on a biological system (e.g. toxicity, quality indices, provenance, freshness, etc.), led to the concept of electronic tongues as a new strategy to tackle these problems. In this direction, to improve the performance of electronic tongues, and thus to spawn new application fields, biosensors have recently been incorporated to electronic tongue arrays, leading to what is known as bioelectronic tongues. Bioelectronic tongues provide superior performance by combining the capabilities of electronic tongues to derive meaning from complex or imprecise data, and the high selectivity and specificity of biosensors. The result is postulated as a tool that exploits chemometrics to solve biosensors' interference problems, and biosensors to solve electronic tongues' selectivity problems. The review presented herein aims to illustrate the capabilities of bioelectronic tongues as analytical tools, especially suited for screening analysis, with particular emphasis in water analysis and the characterization of food and beverages. After briefly reviewing the key concepts related to the design and principles of electronic tongues, we provide an overview of significant contributions to the field of bioelectronic tongues and their future perspectives.
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29
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Deriving calibration curves at early times of chronoamperograms using the chemometrically resolved net faradaic current. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.07.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Ciepiela F, Sordoń W, Jakubowska M. Principal Components - Based Techniques in Voltammetric Determination of Caffeic, Syringic and Vanillic Acids. ELECTROANAL 2015. [DOI: 10.1002/elan.201500203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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31
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32
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Gholivand MB, Jalalvand AR, Goicoechea HC, Gargallo R, Skov T. Chemometrics: An important tool for monitoring interactions of vitamin B7 with bovine serum albumin with the aim of developing an efficient biosensing system for the analysis of protein. Talanta 2015; 132:354-65. [DOI: 10.1016/j.talanta.2014.09.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/09/2014] [Accepted: 09/11/2014] [Indexed: 12/22/2022]
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33
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de la Gala Morales M, Ariño C, Díaz-Cruz JM, Esteban M. Study of the Complexation of Pb(II) withmeso-2,3- Dimercaptosuccinic Acid (DMSA) and 2,3-Dimercapto-1-propanesulfonic acid (DMPS) Using a Bismuth-Bulk Rotating Disk Electrode. ELECTROANAL 2014. [DOI: 10.1002/elan.201400279] [Citation(s) in RCA: 6] [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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34
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Jakubowska M, Górski Ł, Piech R. Deviations from bilinearity in multivariate voltammetric calibration models. Analyst 2014; 138:6817-25. [PMID: 24056349 DOI: 10.1039/c3an01386c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work considers the problem of lack of bilinearity in multivariate calibration. In voltammetry this issue especially relies on the analysis of overlapping signals, which change the shape, sensitivity or shift along the potential axis, causing a significant loss of linearity. It limits the quality of many chemometric models designed for linear data. Improvement of the predictive ability of multivariate calibration models is achieved by pre-processing of the raw data. In this work we proposed the application of a technique called orthogonal signal correction (OSC). We demonstrated that orthogonal correction enables the removal of almost all non-linear effects, disturbing voltammetric signals that impede the building of effective PLS models. The methodology was presented using simulated signals, and also in determination of the nanomolar concentration of scandium in the presence of a high and changing excess of nickel.
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Affiliation(s)
- Małgorzata Jakubowska
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland.
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35
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Ziyatdinova G, Saveliev A, Evtugyn G, Budnikov H. Simultaneous voltammetric determination of phenolic antioxidants with chemometric approaches. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.06.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Gholivand MB, Jalalvand AR, Goicoechea HC. Multivariate analysis for resolving interactions of carbidopa with dsDNA at a fullerene-C60/GCE. Int J Biol Macromol 2014; 69:369-81. [DOI: 10.1016/j.ijbiomac.2014.05.074] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 05/19/2014] [Accepted: 05/20/2014] [Indexed: 11/25/2022]
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37
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Ghoreishi SM, Khoobi A, Behpour M, Masoum S. Application of multivariate curve resolution alternating least squares to biomedical analysis using electrochemical techniques at a nanostructure-based modified sensor. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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38
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Cetó X, Capdevila J, Puig-Pujol A, del Valle M. Cava Wine Authentication Employing a Voltammetric Electronic Tongue. ELECTROANAL 2014. [DOI: 10.1002/elan.201400057] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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Multivariate linear regression with variable selection by a successive projections algorithm applied to the analysis of anodic stripping voltammetry data. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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40
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Zhang Q, Wang Y, Ni Y, Kokot S. Analysis of Complex Molecular Systems: The Impact of Multivariate Analysis for Resolving the Interactions of Small Molecules with Biopolymers – a Review. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.865202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Qiu P, Ni Y, Kokot S. Simultaneous voltammetric determination of four triazine herbicides in water samples with the aid of chemometrics. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2014; 49:722-729. [PMID: 25065823 DOI: 10.1080/03601234.2014.929480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel differential pulse voltammetry (DPV) method was developed for the simultaneous analysis of herbicides in water. A mixture of four herbicides, atrazine, simazine, propazine and terbuthylazine was analyzed simultaneously and the complex, overlapping DPV voltammograms were resolved by several chemometrics methods such as partial least squares (PLS), principal component regression (PCR) and principal component-artificial networks (PC-ANN). The complex profiles of the voltammograms collected from a synthetic set of samples were best resolved with the use of the PC-ANN method, and the best predictions of the concentrations of the analytes were obtained with the PC-ANN model (%RPET = 6.1 and average %Recovery = 99.0). The new method was also used for analysis of real samples, and the obtained results were compared well with those from the GC-MS technique. Such conclusions suggest that the novel method is a viable alternative to the other commonly used methods such as GC, HPLC and GC-MS.
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Affiliation(s)
- Ping Qiu
- a State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang , China
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42
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43
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Direct separation of faradaic and double layer charging current in potential step voltammetry. Talanta 2013; 116:575-80. [DOI: 10.1016/j.talanta.2013.07.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 07/02/2013] [Accepted: 07/09/2013] [Indexed: 11/22/2022]
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44
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Determination of nitroaromatic and nitramine type energetic materials in synthetic and real mixtures by cyclic voltammetry. Talanta 2013; 115:768-78. [DOI: 10.1016/j.talanta.2013.06.047] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 06/21/2013] [Accepted: 06/25/2013] [Indexed: 11/22/2022]
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45
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Alves GMS, Magalhães JMCS, Tauler R, Soares HMVM. Simultaneous Anodic Stripping Voltammetric Determination of Pb and Cd, Using a Vibrating Gold Microwire Electrode, Assisted by Chemometric Techniques. ELECTROANAL 2013. [DOI: 10.1002/elan.201300198] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Xu Y, Zhang Y, Wang Y, Zhang G, Chen L. Thermogravimetric study of the kinetics and characteristics of the pyrolysis of lignite. REACTION KINETICS MECHANISMS AND CATALYSIS 2013. [DOI: 10.1007/s11144-013-0586-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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47
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Chemometrics assisted resolving of net faradaic current contribution from total current in potential step and staircase cyclic voltammetry. Anal Chim Acta 2013; 766:34-46. [DOI: 10.1016/j.aca.2012.12.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Revised: 12/16/2012] [Accepted: 12/18/2012] [Indexed: 11/18/2022]
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48
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Simultaneous identification and quantification of nitro-containing explosives by advanced chemometric data treatment of cyclic voltammetry at screen-printed electrodes. Talanta 2013; 107:270-6. [PMID: 23598222 DOI: 10.1016/j.talanta.2012.12.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 12/17/2012] [Accepted: 12/26/2012] [Indexed: 11/22/2022]
Abstract
The simultaneous determination of three nitro-containing compounds found in the majority of explosive mixtures, namely hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), 2,4,6-trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN), is demonstrated using both qualitative and quantitative approaches involving the coupling of electrochemical measurements and advanced chemometric data processing. Voltammetric responses were obtained from a single bare screen-printed carbon electrode (SPCE), which exhibited marked mix-responses towards the compounds examined. The responses obtained were then preprocessed employing discrete wavelet transform (DWT) and the resulting coefficients were input to an artificial neural network (ANN) model. Subsequently, meaningful data was extracted from the complex voltammetric readings, achieving either the correct discrimination of the different commercial mixtures (100% of accuracy, sensitivity and specificity) or the individual quantification of each of the compounds under study (total NRMSE of 0.162 for the external test subset).
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49
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Jaworski A, Wikiel H, Wikiel K. Automated AC Voltammetric Sensor for Early Fault Detection and Diagnosis in Monitoring of Electroplating Processes. ELECTROANAL 2012. [DOI: 10.1002/elan.201200380] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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50
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Cavanillas S, Chekmeneva E, Ariño C, Díaz-Cruz JM, Esteban M. Electroanalytical and isothermal calorimetric study of As(III) complexation by the metal poisoning remediators, 2,3-dimercapto-1-propanesulfonate and meso-2,3-dimercaptosuccinic acid. Anal Chim Acta 2012; 746:47-52. [PMID: 22975179 DOI: 10.1016/j.aca.2012.08.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 07/20/2012] [Accepted: 08/03/2012] [Indexed: 10/28/2022]
Abstract
A recently developed methodology, which combines voltammetry, ITC, ESI-MS and several chemometric tools, has been applied for the first time to the study of As(III) complexes. The ligands considered, DMSA and DMPS, are commonly used to treat heavy metal poisoning. The study yields a reliable and consistent picture of the binding of As(III) by the chelating therapy agents DMSA and DMPS providing an unambiguous description of the stoichiometries of the complexes (ML(2), with the occasional appearance of ML in the case of DMSA), both ligands have stability constants of the same order, with a logβ(2) of 9.2 and 9.8, respectively. These values confirm the potential efficiency of both ligands in the treatment of As(III) poisoning.
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Affiliation(s)
- Santiago Cavanillas
- Departament de Química Analítica, Universitat de Barcelona, Martí i Franquès, 1-11, E-08028 Barcelona, Spain
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