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Prasertying P, Jantawong N, Sonsa-Ard T, Wongpakdee T, Khoonrueng N, Buking S, Nacapricha D. Gold leaf electrochemical sensors: applications and nanostructure modification. Analyst 2021; 146:1579-1589. [PMID: 33599651 DOI: 10.1039/d0an02455d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This work presents the first planar three-electrode electrochemical sensor comprising local gold leaf as the working electrode and printed, or hand-drawn, counter and reference electrodes, respectively. The gold leaf was mounted on a polyvinyl chloride (PVC) adhesive sheet (15 mm × 30 mm) and covered with a second PVC sheet printed with the counter and reference electrodes. This sheet has a 3 mm circle and a 2 mm × 3 mm rectangle removed to expose the gold electrode area and electrical contacts, respectively. A third shorter insulating layer with a 10 mm circular hole was placed on top to delineate the sensing area of all electrodes. The sensor displayed expected performances in various modes of operation, such as cyclic voltammetry, square wave voltammetry and anodic stripping voltammetry. For the latter mode, the limit of detection of Pb(ii) was 3.2 μg L-1, compliant with regulation for drinking water (10 μg L-1 Pb(ii)). Although designed as a disposable unit, the electrode is effective for up to 200 cycles and applicable for multiple use. The gold leaf was modified by electrodeposition of the gold network and large nano-size gold particles which significantly enhanced the sensitivity of all voltametric sensing, giving lower limits of detection. For stripping voltammetry, the electroplating structure modification improved the simultaneous detection of lead and copper, with the copper response increasing 6-fold. The device has the capability of on-site identification of copper/lead bullets from gunshot residues within 6 min.
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Affiliation(s)
- Paithoon Prasertying
- Flow Innovation-Research for Science and Technology Laboratories (Firstlabs), Thailand. and Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400 Thailand and Center of Excellence on Agricultural Biotechnology (AG-BIO/PERDO-CHE), Bangkok, 10900 Thailand
| | - Nanthatchaphon Jantawong
- Flow Innovation-Research for Science and Technology Laboratories (Firstlabs), Thailand. and Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400 Thailand
| | - Thitaporn Sonsa-Ard
- Flow Innovation-Research for Science and Technology Laboratories (Firstlabs), Thailand. and Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400 Thailand
| | - Thinnapong Wongpakdee
- Flow Innovation-Research for Science and Technology Laboratories (Firstlabs), Thailand. and Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400 Thailand
| | - Nuttamon Khoonrueng
- Flow Innovation-Research for Science and Technology Laboratories (Firstlabs), Thailand. and Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400 Thailand
| | - Supatana Buking
- Office of Police Forensic Science, Royal Thai Police, Bangkok, 10330 Thailand
| | - Duangjai Nacapricha
- Flow Innovation-Research for Science and Technology Laboratories (Firstlabs), Thailand. and Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok, 10400 Thailand
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Han J, Fu R, Jin C, Li Z, Wang M, Yu P, Xie Y. Highly sensitive detection of trace Hg2+ via PdNPs/g-C3N4 nanosheet-modified electrodes using DPV. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104356] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Dang VH, Yen PTH, Phong PH, Duy PK, Ha VTT. Simultaneous determination of arsenic and mercury in water at trace levels by differential pulse anodic stripping voltammetry using a simple gold disk electrode. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Vu Hai Dang
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi Viet Nam
| | - Pham Thi Hai Yen
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi Viet Nam
| | - Pham Hong Phong
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi Viet Nam
| | - Pham Khac Duy
- Graduate University of Science and Technology; VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi Viet Nam
| | - Vu Thi Thu Ha
- Institute of Chemistry; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi Viet Nam
- University of Science and Technology of Hanoi; VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi Viet Nam
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Yen PTH, Dang VH, Phong PH, Ha VTT. Electrochemical Characterization of Gold-Nanostructured Platinum Substrates and Application to Determination of Hg(II) at Trace Levels. CURR ANAL CHEM 2018. [DOI: 10.2174/1573411014666180320154119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Objectives:
To develop gold nanostructure on Pt substrate for detection of Hg(II) in
environment by DPASV technique. Its structure was characterized by SEM and electrochemical performance
was evaluated. The fabricated electrodes were used to measure Hg(II) samples in a concentration
range from 2 to 100 ppb.
Method:
Gold nanoparticles (AuNPs) and AuNDs were deposited on platinum substrates by applying
potential of +0.50 V for AuNPs deposition and galvanostatic of -50 mA for AuNDs/Pt in a solution
20 mM HAuCl4, 10 mM KI, 5 mM NH4Cl and 0.5 M H2SO4.The electrochemical behaviors of
AuNPs/Pt and AuNDs/Pt were examined using CV in 5 mM K3[Fe(CN)6]/0.1 M PBS solution, pH = 7
and the detection of Hg(II) was performed by DPASV.
Results:
The SEM images show that largest surface area was obtained at 120 s depositing time. Effective
surface areas (ESA) of AuNPs and AuNDs are about 1.39 and 5.19 times higher than electrode
geometric area. Calibration curves achieved with R2= 0.9978; 0.9975; 0.9973 and LOD= 0.55; 0.105
and 0.042 ppb for Au disk, AuNPs/Pt and AuNDs/Pt respectively. Reproducibility with ten measurements
of 10, 40 and 80 ppb of Hg(II), RSD (%) were 3.5, 2.8 and 1.5 respectively. No significant effect
on Hg(II) signals was found except CCu(II) with 100 times higher than CHg(II). Comparison with AAS,
data difference between the two techniques is acceptable, at only 4.34%.
Conclusion:
LOD for Hg(II) detection by AuNDs/Pt achieved 0.042 ppb with linear range of 2.0–100
ppb. Combining with a laboratory constructed galvano-potentiostat, it can be used in on-site measurement.
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Affiliation(s)
- Pham Thi Hai Yen
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Vu Hai Dang
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Pham Hong Phong
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Vu Thi Thu Ha
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Suherman AL, Tanner EE, Compton RG. Recent developments in inorganic Hg 2+ detection by voltammetry. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Buttino I, Hwang JS, Romano G, Sun CK, Liu TM, Pellegrini D, Gaion A, Sartori D. Detection of malformations in sea urchin plutei exposed to mercuric chloride using different fluorescent techniques. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 123:72-80. [PMID: 26254716 DOI: 10.1016/j.ecoenv.2015.07.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 07/22/2015] [Accepted: 07/23/2015] [Indexed: 06/04/2023]
Abstract
Embryos of Mediterranean sea urchin Paracentrotus lividus and subtropical Echinometra mathaei were exposed to 5,10, 15 and 20µgL(-1), and to 1, 2, 3 and 4µgL(-1) mercuric chloride (HgCl2), respectively. The effective concentration (EC50) inducing malformation in 50% of 4-arm pluteus stage (P4) was 16.14µgL(-1) for P. lividus and 2.41µgL(-1) for E. mathaei. Two-photon (TP), second (SHG) and third harmonic generation (THG) microscopy techniques, TUNEL staining, propidium iodide (PI) and Hoechst 33342 probes were used to detect light signals or to stain apoptotic and necrotic cells in fixed and alive plutei. Signals were detected differently in the two species: TP fluorescence, commonly associated with apoptotic cells, did not increase with increasing HgCl2 concentrations in P. lividus and in fact, the TUNEL did not reveal induction of apoptosis. PI fluorescence increased in P. lividus in a dose-dependent manner, suggesting a loss of cell permeability. In E. mathaei plutei TP fluorescence increased at increasing HgCl2 concentrations. THG microscopy revealed skeletal rods in both species. Different fluorescent techniques, used in this study, are proposed as early-warning systems to visualize malformations and physiological responses in sea urchin plutei.
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Affiliation(s)
- Isabella Buttino
- Istituto Superiore per la Protezione e la Ricerca Ambientale, ISPRA_ STS-Livorno, Piazzale dei marmi 12, 57123, Italy.
| | - Jiang-Shiou Hwang
- Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Giovanna Romano
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | - Chi-Kuang Sun
- Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Tzu-Ming Liu
- Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - David Pellegrini
- Istituto Superiore per la Protezione e la Ricerca Ambientale, ISPRA_ STS-Livorno, Piazzale dei marmi 12, 57123, Italy
| | - Andrea Gaion
- Istituto Superiore per la Protezione e la Ricerca Ambientale, ISPRA_ STS-Livorno, Piazzale dei marmi 12, 57123, Italy
| | - Davide Sartori
- Istituto Superiore per la Protezione e la Ricerca Ambientale, ISPRA_ STS-Livorno, Piazzale dei marmi 12, 57123, Italy; CAISIAL, Academic Centre for Innovation and Development in the Food Industry, 80055 Portici (Na), Italy
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7
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Electrochemical determination of inorganic mercury and arsenic—A review. Biosens Bioelectron 2015; 74:895-908. [DOI: 10.1016/j.bios.2015.07.058] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/18/2015] [Accepted: 07/24/2015] [Indexed: 11/17/2022]
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Wu SH, Zheng ZY, Zhang JF, Song ZW, Fang L, Sun JJ. Sub-ppt Level Detection of Mercury(II) Based on Anodic Stripping Voltammetry with Prestripping Step at an In Situ Formed Bismuth Film Modified Glassy Carbon Electrode. ELECTROANAL 2015. [DOI: 10.1002/elan.201400721] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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9
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Electrochemical determination of mercury: A review. Talanta 2013; 116:1091-104. [DOI: 10.1016/j.talanta.2013.07.056] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/11/2013] [Accepted: 07/24/2013] [Indexed: 11/20/2022]
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Niu X, Chen C, Teng Y, Zhao H, Lan M. Novel Screen-Printed Gold Nano Film Electrode for Trace Mercury(II) Determination Using Anodic Stripping Voltammetry. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.653902] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Souza APD, Lima AS, Salles MO, Nascimento AN, Bertotti M. The use of a gold disc microelectrode for the determination of copper in human sweat. Talanta 2010; 83:167-70. [DOI: 10.1016/j.talanta.2010.09.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 08/31/2010] [Accepted: 09/01/2010] [Indexed: 11/27/2022]
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12
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Deshpande K, Mishra RK, Bhand S. A high sensitivity micro format chemiluminescence enzyme inhibition assay for determination of Hg(II). SENSORS 2010; 10:6377-94. [PMID: 22163555 PMCID: PMC3231124 DOI: 10.3390/s100706377] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Revised: 05/17/2010] [Accepted: 06/11/2010] [Indexed: 11/25/2022]
Abstract
A highly sensitive and specific enzyme inhibition assay based on alcohol oxidase (AlOx) and horseradish peroxidase (HRP) for determination of mercury Hg(II) in water samples has been presented. This article describes the optimization and miniaturization of an enzymatic assay using a chemiluminescence reaction. The analytical performance and detection limit for determination of Hg(II) was optimized in 96 well plates and further extended to 384 well plates with a 10-fold reduction in assay volume. Inhibition of the enzyme activity by dissolved Hg(II) was found to be linear in the range 5–500 pg·mL−1 with 3% CV in inter-batch assay. Due to miniaturization of assay in 384 well plates, Hg(II) was measurable as low as 1 pg·mL−1 within 15 min. About 10-fold more specificity of the developed assay for Hg(II) analysis was confirmed by challenging with interfering divalent metal ions such as cadmium Cd(II) and lead Pb(II). Using the proposed assay we could successfully demonstrate that in a composite mixture of Hg(II), Cd(II) and Pb(II), inhibition by each metal ion is significantly enhanced in the presence of the others. Applicability of the proposed assay for the determination of the Hg(II) in spiked drinking and sea water resulted in recoveries ranging from 100–110.52%.
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Affiliation(s)
- Kanchanmala Deshpande
- Chemistry Group, Birla Institute of Technology and Science, Pilani-Goa Campus, Zuarinagar Goa, PIN 403726, India.
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13
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Stripping voltammetric determination of mercury(II) and lead(II) using screen-printed electrodes modified with gold films, and metal ion preconcentration with thiol-modified magnetic particles. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0329-x] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Centrifugation: an efficient technique for preconcentration in anodic stripping voltammetric analysis of mercury using a gold film electrode. Mikrochim Acta 2009. [DOI: 10.1007/s00604-009-0246-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Kumar Jena B, Retna Raj C. Gold Nanoelectrode Ensembles for the Simultaneous Electrochemical Detection of Ultratrace Arsenic, Mercury, and Copper. Anal Chem 2008; 80:4836-44. [DOI: 10.1021/ac071064w] [Citation(s) in RCA: 291] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bikash Kumar Jena
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - C. Retna Raj
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
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16
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Okçu F, Ertaş H, Ertaş FN. Determination of mercury in table salt samples by on-line medium exchange anodic stripping voltammetry. Talanta 2008; 75:442-6. [DOI: 10.1016/j.talanta.2007.11.044] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2007] [Revised: 11/03/2007] [Accepted: 11/08/2007] [Indexed: 11/30/2022]
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17
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Ly SY. Voltammetric Assay of Mercury Ion in Fish Kidneys. Toxicol Res 2008; 24:23-28. [PMID: 32038773 PMCID: PMC7006273 DOI: 10.5487/tr.2008.24.1.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2007] [Accepted: 12/21/2007] [Indexed: 11/23/2022] Open
Abstract
Voltammetric analysis of mercury ions was developed using paste electrodes (PEs) with DNA and carbon nanotube mixed electrodes. The optimized analytical results of the cyclic voltammetry (CV) of the 1∼14 ng L−1 Hg(II) concentration and the square wave (SW) stripping voltammetry of the 1∼12 ng L−1 Hg(II) working range within an accumulation time of 400 seconds were obtained in 0.1 M NH4H2PO4 electrolyte solutions of pH 4.0. For the relative standard deviations of the 1 ng L−1 Hg(II), which were observed at 0.078% (n = 15) at the optimum conditions, the low detection limit (S/N) was pegged at 0.2 ng L−1 (7.37 × 10−13M) for Hg(II). The results can be applied to assays in biological fish kidneys and wastewater samples.
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Affiliation(s)
- Suw Young Ly
- Biosensor Research Institute, Seoul National University of Technology, Seoul, 139-743 Korea
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Abollino O, Giacomino A, Malandrino M, Piscionieri G, Mentasti E. Determination of Mercury by Anodic Stripping Voltammetry with a Gold Nanoparticle-Modified Glassy Carbon Electrode. ELECTROANAL 2008. [DOI: 10.1002/elan.200704044] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Vandenhecke J, Waeles M, Riso RD, Le Corre P. A stripping chronopotentiometric (SCP) method with a gold film electrode for determining inorganic arsenic species in seawater. Anal Bioanal Chem 2007; 388:929-37. [PMID: 17468856 DOI: 10.1007/s00216-007-1284-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2007] [Revised: 03/26/2007] [Accepted: 03/27/2007] [Indexed: 10/23/2022]
Abstract
An electrochemical method based on stripping chronopotentiometry (SCP) with a gold film electrode has been developed for determining arsenic in seawater. The detection limits were 0.053 ppb (0.71 nM) and 0.022 ppb (0.29 nM) for total inorganic As (As(T)) and As(III) after deposition times of 60 and 150 s, respectively. Compared to other stripping chronopotentiometric methods that use a gold macroelectrode to perform measurements of arsenic in seawater, the procedure described here exhibits better sensitivity and a fourfold shorter deposition time. Among the SCP methods, our procedure had proven its ability to analyse arsenic(III) in seawater. It therefore allows the concentrations of the various arsenic inorganic species in seawater--i.e. As(T), As(III) and As(V)--to be analysed. The proposed method is reliable, inexpensive and compact. It was successfully applied to the study of arsenic speciation along the salinity gradient of the Penzé estuary (NW France).
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Affiliation(s)
- Jennifer Vandenhecke
- Laboratoire de Chimie Marine, Université de Bretagne Occidentale IUEM, UMR CNRS 7144 Roscoff, Place Nicolas Copernic, Technopôle Brest-Iroise, Plouzané, France
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Garnier C, Lesven L, Billon G, Magnier A, Mikkelsen O, Pizeta I. Voltammetric procedure for trace metal analysis in polluted natural waters using homemade bare gold-disk microelectrodes. Anal Bioanal Chem 2006; 386:313-23. [PMID: 16865336 DOI: 10.1007/s00216-006-0625-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2006] [Revised: 05/23/2006] [Accepted: 06/16/2006] [Indexed: 10/24/2022]
Abstract
Voltammetric procedures for trace metals analysis in polluted natural waters using homemade bare gold-disk microelectrodes of 25- and 125-microm diameters have been determined. In filtered seawater samples, square wave anodic stripping voltammetry (SWASV) with a frequency of 25 Hz is applied for analysis, whereas in unfiltered contaminated river samples, differential pulse anodic stripping voltammetry (DPASV) gave more reliable results. The peak potentials of the determined trace metals are shifted to more positive values compared to mercury drop or mercury-coated electrodes, with Zn always displaying 2 peaks, and Pb and Cd inversing their positions. For a deposition step of 120 s at -1.1 V, without stirring, the 25-microm gold-disk microelectrode has a linear response for Cd, Cu, Mn, Pb and Zn from 0.2 microg L(-1) (1 microg L(-1) for Mn) to 20 microg L(-1) (30 microg L(-1) for Zn, Pb and 80 microg L(-1) for Mn). Under the same analytical conditions, the 125-microm gold-disk microelectrode shows linear behaviour for Cd, Cu, Pb and Zn from 1 microg L(-1) (5 microg L(-1) for Cd) to 100 microg L(-1) (200 microg L(-1) for Pb). The sensitivity of the 25-microm electrode varied for different analytes from 0.23 (+/-0.5%, Mn) to 4.83 (+/-0.9%, Pb) nA L micromol(-1), and sensitivity of the 125-microm electrode varied from 1.48 (+/-0.7%, Zn) to 58.53 (+/-1.1%, Pb nA L micromol(-1). These microelectrodes have been validated for natural sample analysis by use in an on-site system to monitor Cu, Pb and Zn labile concentrations in the Deûle River (France), polluted by industrial activities. First results obtained on sediment core issued from the same location have shown the ability of this type of microelectrode for in situ measurements of Pb and Mn concentrations in anoxic sediments.
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Affiliation(s)
- C Garnier
- Equipe de Chimie Analytique et Marine UMR8013, Université des Sciences et Technologies de Lille, Cité Scientifique 59655, Villeneuve d'Ascq, France.
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Rao TP, Metilda P, Gladis JM. Overview of Analytical Methodologies for Sea Water Analysis: Part I—Metals. Crit Rev Anal Chem 2005. [DOI: 10.1080/10408340500431272] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Measuring mercury ion concentration with a carbon nano tube paste electrode using the cyclic voltammetry method. J APPL ELECTROCHEM 2005. [DOI: 10.1007/s10800-005-2058-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Fiałkowski M, Grzeszczak P, Nowakowski R, Hołyst R. Absorption of Mercury in Gold Films and Its Further Desorption: Quantitative Morphological Study of the Surface Patterns. J Phys Chem B 2004. [DOI: 10.1021/jp0365413] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcin Fiałkowski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland, and Department of Mathematics and Natural Sciences - College of Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
| | - Patrycja Grzeszczak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland, and Department of Mathematics and Natural Sciences - College of Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
| | - Robert Nowakowski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland, and Department of Mathematics and Natural Sciences - College of Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
| | - Robert Hołyst
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland, and Department of Mathematics and Natural Sciences - College of Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
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Determination of mercury in process and lagoon waters by inductively coupled plasma-mass spectrometric analysis after electrochemical preconcentration: comparison with anodic stripping at gold and polymer coated electrodes. Anal Chim Acta 2001. [DOI: 10.1016/s0003-2670(01)00838-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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