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Sunday NU, Honeychurch KC, Newton L, Chidugu-Ogborigbo RU. An anodic stripping voltammetric approach for total mercury determination in sea sponges from the Niger Delta region of Nigeria. MARINE POLLUTION BULLETIN 2024; 208:117008. [PMID: 39299188 DOI: 10.1016/j.marpolbul.2024.117008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/25/2024] [Accepted: 09/14/2024] [Indexed: 09/22/2024]
Abstract
Mercury pollution from ongoing crude oil refining and waste disposal activities threatens aquatic ecosystems and human health in the Niger Delta. Mercury monitoring exercise in this region is challenging due to the high cost of traditional instruments and the complexity of marine samples. This research presents a novel analytical method using differential pulse anodic stripping voltammetry (DPASV) with a glassy carbon electrode (GCE) to determine mercury levels in sea sponges from the Niger Delta. Using a 2.36 M HCl + 2.4 M NaCl supporting electrolyte, -0.6 V deposition potential, and 300 s deposition time, average mercury levels were found to be 0.98 mg kg-1, 0.63 mg kg-1 and 0.42 mg kg-1 for Ibiotirem, Kaa and Samanga, respectively. The result showed that the Niger Delta is polluted, and remediation efforts are necessary. Furthermore, the DPASV method could be used for routine mercury monitoring as it is cost-effective, user-friendly, and highly sensitive.
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Affiliation(s)
- N U Sunday
- School of Applied Sciences, University of the West of England, Bristol BS16 1QY, United Kingdom
| | - K C Honeychurch
- School of Applied Sciences, University of the West of England, Bristol BS16 1QY, United Kingdom
| | - L Newton
- School of Applied Sciences, University of the West of England, Bristol BS16 1QY, United Kingdom
| | - R U Chidugu-Ogborigbo
- School of Applied Sciences, University of the West of England, Bristol BS16 1QY, United Kingdom.
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Laschi S, Sfragano PS, Tadini-Buoninsegni F, Guigues N, Palchetti I. Development of a flow system for decentralized electrochemical analysis of heavy metals using screen-printed electrodes: the importance of sensor stability. Analyst 2024; 149:4239-4249. [PMID: 38887058 DOI: 10.1039/d4an00616j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Year after year, the need for decentralized tools to tackle the monitoring of heavy metal levels in the environment gradually increases. In this context, suitable electrochemical methodologies are widely established and particularly attractive for the production of low-cost miniaturized field-deployable analytical platforms. This work focused on the development of an automatable portable system based on square-wave anodic stripping voltammetry (SWASV) for the on-line detection of heavy metals. The surface of the sensors is appropriately modified and coupled with a fluidic system equipped with an ad-hoc designed flow cell. A custom software tool was introduced to handle the remote-controlled potentiostat and automate the various steps of the procedure, including stirring operations, cleaning phases, SWASV measurements, and data collection. After studying technical and analytical challenges, the final system developed was applied to the simultaneous detection of Cd(II), Pb(II), and Cu(II) in solution, achieving sub-ppb detection limits. Additionally, the practical applicability of the method was successfully applied to river water samples collected from the Loire basin in France.
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Affiliation(s)
- Serena Laschi
- Department of Chemistry "Ugo Schiff" (DICUS), Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - Patrick Severin Sfragano
- Department of Chemistry "Ugo Schiff" (DICUS), Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | | | - Nathalie Guigues
- Laboratoire national de métrologie et d'essai (LNE), 1 rue Gaston Boissier, 75015 Paris, France
| | - Ilaria Palchetti
- Department of Chemistry "Ugo Schiff" (DICUS), Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
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Chen KY, Kachhadiya J, Muhtasim S, Cai S, Huang J, Andrews J. Underground Ink: Printed Electronics Enabling Electrochemical Sensing in Soil. MICROMACHINES 2024; 15:625. [PMID: 38793198 PMCID: PMC11123188 DOI: 10.3390/mi15050625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024]
Abstract
Improving agricultural production relies on the decisions and actions of farmers and land managers, highlighting the importance of efficient soil monitoring techniques for better resource management and reduced environmental impacts. Despite considerable advancements in soil sensors, their traditional bulky counterparts cause difficulty in widespread adoption and large-scale deployment. Printed electronics emerge as a promising technology, offering flexibility in device design, cost-effectiveness for mass production, and a compact footprint suitable for versatile deployment platforms. This review overviews how printed sensors are used in monitoring soil parameters through electrochemical sensing mechanisms, enabling direct measurement of nutrients, moisture content, pH value, and others. Notably, printed sensors address scalability and cost concerns in fabrication, making them suitable for deployment across large crop fields. Additionally, seamlessly integrating printed sensors with printed antenna units or traditional integrated circuits can facilitate comprehensive functionality for real-time data collection and communication. This real-time information empowers informed decision-making, optimizes resource management, and enhances crop yield. This review aims to provide a comprehensive overview of recent work related to printed electrochemical soil sensors, ultimately providing insight into future research directions that can enable widespread adoption of precision agriculture technologies.
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Affiliation(s)
- Kuan-Yu Chen
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
| | - Jeneel Kachhadiya
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
| | - Sharar Muhtasim
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
| | - Shuohao Cai
- Department of Soil Science, University of Wisconsin-Madison, Madison, WI 53706, USA; (S.C.); (J.H.)
| | - Jingyi Huang
- Department of Soil Science, University of Wisconsin-Madison, Madison, WI 53706, USA; (S.C.); (J.H.)
| | - Joseph Andrews
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
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Yang Q, Nguyen EP, Panáček D, Šedajová V, Hrubý V, Rosati G, Silva CDCC, Bakandritsos A, Otyepka M, Merkoçi A. Metal-free cysteamine-functionalized graphene alleviates mutual interferences in heavy metal electrochemical detection. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2023; 25:1647-1657. [PMID: 36824602 PMCID: PMC9940303 DOI: 10.1039/d2gc02978b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 01/13/2023] [Indexed: 05/07/2023]
Abstract
Heavy metal pollutants are of great concern to environmental monitoring due to their potent toxicity. Electrochemical detection, one of the main techniques, is hindered by the mutual interferences of various heavy metal ions in practical use. In particular, the sensitivity of carbon electrodes to Cd2+ ions (one of the most toxic heavy metals) is often overshadowed by some heavy metals (e.g. Pb2+ and Cu2+). To mitigate interference, metallic particles/films (e.g. Hg, Au, Bi, and Sn) typically need to be embedded in the carbon electrodes. However, these additional metallic materials may face issues of secondary pollution and unsustainability. In this study, a metal-free and sustainable nanomaterial, namely cysteamine covalently functionalized graphene (GSH), was found to lead to a 6-fold boost in the Cd2+ sensitivity of the screen-printed carbon electrode (SPCE), while the sensitivities to Pb2+ and Cu2+ were not influenced in simultaneous detection. The selective enhancement could be attributed to the grafted thiols on GSH sheets with good affinity to Cd2+ ions based on Pearson's hard and soft acid and base principle. More intriguingly, the GSH-modified SPCE (GSH-SPCE) featured high reusability with extended cycling times (23 times), surpassing the state-of-art SPCEs modified by non-covalently functionalized graphene derivatives. Last, the GSH-SPCE was validated in tap water.
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Affiliation(s)
- Qiuyue Yang
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC Campus UAB Bellaterra Barcelona 08193 Spain
- Department of Materials Science, Universitat Autònoma de Barcelona Campus de la UAB Plaça Cívica 08193 Bellaterra Barcelona Spain
| | - Emily P Nguyen
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC Campus UAB Bellaterra Barcelona 08193 Spain
| | - David Panáček
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC Campus UAB Bellaterra Barcelona 08193 Spain
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
| | - Veronika Šedajová
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
| | - Vítězslav Hrubý
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
- Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc 17. listopadu 12 771 46 Olomouc Czech Republic
| | - Giulio Rosati
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC Campus UAB Bellaterra Barcelona 08193 Spain
| | - Cecilia de Carvalho Castro Silva
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC Campus UAB Bellaterra Barcelona 08193 Spain
- MackGraphe-Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University Consolação Street 930 01302-907 São Paulo Brazil
| | - Aristides Bakandritsos
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
- Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB-Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
- IT4Innovations, VSB-Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
| | - Arben Merkoçi
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC Campus UAB Bellaterra Barcelona 08193 Spain
- Institució Catalana de Recerca i Estudis Avançats Pg. Lluís Companys 23 Barcelona 08010 Spain
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Ultrathin ion-selective membranes for trace detection of lead, copper and silver ions. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Simple and highly sensitive 2-hydroxy-1,4-naphthoquinone/glassy carbon sensor for the electrochemical detection of [Ni(CN)4]2− in metallurgical industry wastewater. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01691-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Beardsley CA, Fuller KZ, Reilly TH, Henry CS. Method for analysis of environmental lead contamination in soils. Analyst 2021; 146:7520-7527. [PMID: 34806095 DOI: 10.1039/d1an01744f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for lead (Pb) detection in soil is presented. Pb is a dangerous environmental pollutant that is present in soils, posing a health risk to millions of people worldwide, and regular monitoring of Pb contamination in soils is essential to public health. Many sensitive methods for detection of heavy metals in solid matrices exist, but they cannot be performed on-site because they are costly (>$30 per sample), require trained personnel, and many classical sample preparation methods are not safe to bring into the field. We describe an alternative process, combining a safer sample preparation method with electrochemical analysis. The process requires minimal training, making it an attractive overall method for regular environmental screening of Pb in soils. Extract obtained from the soil is pH adjusted and analyzed using a stencil-printed carbon electrode and square wave anodic stripping voltammetry. In this work, a study of 15 neighborhood soils examining the concentration of Pb present post-extraction was performed to demonstrate the method. The limit of detection for the electrochemical analysis was calculated to be 16 ppb-well below the United States Environmental Protection Agency's action limit for Pb in soils (400 mg kg-1 or 4000 ppb)-and third party inductively coupled plasma-optical emission spectroscopy analysis validated the results obtained in this study to within ±17% on average.
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Affiliation(s)
- Chloe A Beardsley
- Access Sensor Technologies LLC, 320 E. Vine Dr. STE 221, Fort Collins, CO 80524, USA.
| | - Kai Z Fuller
- Access Sensor Technologies LLC, 320 E. Vine Dr. STE 221, Fort Collins, CO 80524, USA.
| | - Thomas H Reilly
- Access Sensor Technologies LLC, 320 E. Vine Dr. STE 221, Fort Collins, CO 80524, USA.
| | - Charles S Henry
- Access Sensor Technologies LLC, 320 E. Vine Dr. STE 221, Fort Collins, CO 80524, USA. .,Department of Chemistry, Colorado State University, 1301 Center Ave., Fort Collins, CO 80523-1872, USA.
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