1
|
Gettler RC, Mehregan S, Koenig HD, Kaess AM, Young MJ. Nonequilibrium Anion Detection in Solid-Contact Ion-Selective Electrodes. ACS OMEGA 2024; 9:16443-16457. [PMID: 38617695 PMCID: PMC11007695 DOI: 10.1021/acsomega.4c00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/08/2024] [Accepted: 03/15/2024] [Indexed: 04/16/2024]
Abstract
Low-cost and portable nitrate and phosphate sensors are needed to improve farming efficiency and reduce environmental and economic impact arising from the release of these nutrients into waterways. Ion selective electrodes (ISEs) could provide a convenient platform for detecting nitrate and phosphate, but existing ionophore-based nitrate and phosphate selective membrane layers used in ISEs are high cost, and ISEs using these membrane layers suffer from long equilibration time, reference potential drift, and poor selectivity. In this work, we demonstrate that constant current operation overcomes these shortcomings for ionophore-based anion-selective ISEs through a qualitatively different response mechanism arising from differences in ion mobility rather than differences in ion binding thermodynamics. We develop a theoretical treatment of phase boundary potential and ion diffusion that allows for quantitative prediction of electrode response under applied current. We also demonstrate that under pulsed current operation, we can create functional solid-contact ISEs using lower-cost molecularly imprinted polymers (MIPs). MIP-based nitrate sensors provide comparable selectivity against chloride to costlier ionophore-based sensors and exhibit >100,000 times higher selectivity against perchlorate. Likewise, MIP-based solid contact ion-selective electrode phosphate sensors operated under pulsed current provide competitive selectivity against chloride, nitrate, perchlorate, and carbonate anions. The theoretical treatment and conceptual demonstration of pulsed-current ISE operation we report will inform the development of new materials for membrane layers in ISEs based on differences in ion mobility and will allow for improved ISE sensor designs.
Collapse
Affiliation(s)
- Ryan C. Gettler
- Chemical
and Biomedical Engineering, University of
Missouri, Columbia, Missouri 65211, United States
| | - Shima Mehregan
- Department
of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Henry D. Koenig
- Department
of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Andie M. Kaess
- Chemical
and Biomedical Engineering, University of
Missouri, Columbia, Missouri 65211, United States
| | - Matthias J. Young
- Chemical
and Biomedical Engineering, University of
Missouri, Columbia, Missouri 65211, United States
- Department
of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
- Materials
Science and Engineering Institute, University
of Missouri, Columbia, Missouri 65211, United States
| |
Collapse
|
2
|
Darestani-Farahani M, Ma F, Patel V, Selvaganapathy PR, Kruse P. An ion-selective chemiresistive platform as demonstrated for the detection of nitrogen species in water. Analyst 2023; 148:5731-5744. [PMID: 37840463 DOI: 10.1039/d3an01267k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
The use of ion-selective electrodes (ISE) is a well-established technique for the detection of ions in aqueous solutions but requires the use of a reference electrode. Here, we introduce a platform of ion-selective chemiresistors for the detection of nitrogen species in water as an alternative method without the need for reference electrodes. Chemiresistors have a sensitive surface that is prone to damage during operation in aqueous solutions. By applying a layer of ion-selective membrane to the surface of the chemiresistive device, the surface becomes protected and highly selective. We demonstrate both anion-selective (NO3-, NO2-) and cation-selective (NH4+) membranes. The nitrate sensors are able to measure nitrate ions in a range of 2.2-220 ppm with a detection limit of 0.3 ppm. The nitrite sensors respond between 67 ppb and 67 ppm of nitrite ions (64 ppb detection limit). The ammonium sensors can measure ammonium concentrations in a wide range from 10 ppb to 100 ppm (0.5 ppb detection limit). The fast responses to nitrate and nitrite are due to a mechanism involving electrostatic gating repulsion between negative charge carriers of the film and anions while ammonium detection arises from two mechanisms based on electrostatic gating repulsion and adsorption of ammonium ions at the surface of the p-doped chemiresistive film. The adsorption phenomenon slows down the recovery time of the ammonium sensor. This sensor design is a new platform to continuously monitor ions in industrial, domestic, and environmental water resources by robust chemiresistive devices.
Collapse
Affiliation(s)
- Maryam Darestani-Farahani
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Fanqing Ma
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Vinay Patel
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada.
| | | | - Peter Kruse
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| |
Collapse
|
3
|
Chen C, Wiorek A, Gomis-Berenguer A, Crespo GA, Cuartero M. Portable All-in-One Electrochemical Actuator-Sensor System for the Detection of Dissolved Inorganic Phosphorus in Seawater. Anal Chem 2023; 95:4180-4189. [PMID: 36724079 PMCID: PMC9979141 DOI: 10.1021/acs.analchem.2c05307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We present a methodology for the detection of dissolved inorganic phosphorous (DIP) in seawater using an electrochemically driven actuator-sensor system. The motivation for this work stems from the lack of tangible solutions for the in situ monitoring of nutrients in water systems. It does not require the addition of any reagents to the sample and works under mild polarization conditions, with the sample confined to a thin-layer compartment. Subsequent steps include the oxidation of polyaniline to lower the pH, the delivery of molybdate via a molybdenum electrode, and the formation of an electroactive phosphomolybdate complex from DIP species. The phosphomolybdate complex is ultimately detected by either cyclic voltammetry (CV) or square wave voltammetry (SWV). The combined release of protons and molybdate consistently results in a sample pH < 2 as well as a sufficient excess of molybdate, fulfilling the conditions required for the stoichiometric detection of DIP. The current of the voltammetric peak was found to be linearly related to DIP concentrations between 1 and 20 μM for CV and 0.1 and 20 μM for SWV, while also being selective against common silicate interference. The analytical application of the system was demonstrated by the validated characterization of five seawater samples, revealing an acceptable degree of difference compared to chromatography measurements. This work paves the way for the future DIP digitalization in environmental waters by in situ electrochemical probes with unprecedented spatial and temporal resolution. It is expected to provide real-time data on anthropogenic nutrient discharges as well as the improved monitoring of seawater restoration actions.
Collapse
Affiliation(s)
- Chen Chen
- Department
of Chemistry, School of Engineering Science in Chemistry, Biochemistry
and Health, KTH Royal Institute of Technology, SE-100 44Stockholm, Sweden
| | - Alexander Wiorek
- Department
of Chemistry, School of Engineering Science in Chemistry, Biochemistry
and Health, KTH Royal Institute of Technology, SE-100 44Stockholm, Sweden
| | - Alicia Gomis-Berenguer
- Department
of Chemistry, School of Engineering Science in Chemistry, Biochemistry
and Health, KTH Royal Institute of Technology, SE-100 44Stockholm, Sweden
| | - Gaston A. Crespo
- Department
of Chemistry, School of Engineering Science in Chemistry, Biochemistry
and Health, KTH Royal Institute of Technology, SE-100 44Stockholm, Sweden,UCAM-SENS,
Universidad Católica San Antonio de Murcia, UCAM HiTech, Avda. Andres Hernandez Ros 1, 30107Murcia, Spain
| | - Maria Cuartero
- Department
of Chemistry, School of Engineering Science in Chemistry, Biochemistry
and Health, KTH Royal Institute of Technology, SE-100 44Stockholm, Sweden,UCAM-SENS,
Universidad Católica San Antonio de Murcia, UCAM HiTech, Avda. Andres Hernandez Ros 1, 30107Murcia, Spain,
| |
Collapse
|
4
|
Ma W, Yan B. Monosystem Discriminative Sensor toward Inorganic Anions via Incorporating Three Different Luminescent Channels in Metal-Organic Frameworks. Anal Chem 2022; 94:5866-5874. [PMID: 35384662 DOI: 10.1021/acs.analchem.2c00019] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Because there are great demands of distinguishing multiple chemically similar analytes, chemical sensors for multivariate analyses have been developed rapidly in the past few decades. However, designing luminescent discriminative sensors based on a monosystem has been a challenge until now. In this work, we first develop a triemitting luminescent discriminative platform named RGB@TLU-2 with three different emission centers: blue-emitting center (BDC-NH2), green-emitting (Tb@BDC-SO3-), and red-emitting center (rhodamine B, RhB). The different luminescent mechanisms (ligand emission, LMET emission, guest emission) in these emission centers endow RGB@TLU-2 with high cross-reactivity, which is essential for discriminating applications. To balance the three luminescent centers, all variables in the synthesis process are optimized carefully. Surprisingly, the RGB@TLU-2 shows a variety of luminescent response patterns when immersed into 12 inorganic anions. Two unsupervised multidimensional analysis methods, (principal component analysis and hierarchical cluster analysis), are used to explore the relationship between these anions. On the basis of the luminescent response of analytes, 5 response modes are obtained and 12 inorganic anions are classified into 6 groups. The sensing mechanisms are discussed in detail. Detection limits of typical anions Cr2O72-, PO43-, ClO-, and NO2- are calculated as 2.895 × 10-8, 6.353 × 10-6, 1.134 × 10-5, and 4.56 × 10-4 mol/L, respectively. Furthermore, the RGB@TLU-2 also shows the ability to distinguish 4 (Fe3+, Fe2+, Cu2+ and Cr3+) of 12 metal ions and 3 (Trp, Pro, and Arg) of 11 amino acids.
Collapse
Affiliation(s)
- Wanpeng Ma
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| |
Collapse
|
5
|
Khoshmaram L, Tabaghchi S, Azhar FF. Combination of a methylene blue-iodide system with a smartphone-based portable colorimeter for the on-site determination of nitrite. NEW J CHEM 2022. [DOI: 10.1039/d1nj05340j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
On-site determination of nitrite using a novel colorimetric method based on bleaching the blue color of methylene-blue and image analysis.
Collapse
Affiliation(s)
- Leila Khoshmaram
- Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Sona Tabaghchi
- Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Fahimeh Farshi Azhar
- Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| |
Collapse
|
6
|
Sharma R, Geranpayehvaghei M, Ejeian F, Razmjou A, Asadnia M. Recent advances in polymeric nanostructured ion selective membranes for biomedical applications. Talanta 2021; 235:122815. [PMID: 34517671 DOI: 10.1016/j.talanta.2021.122815] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/13/2021] [Accepted: 08/18/2021] [Indexed: 12/30/2022]
Abstract
Nano structured ion-selective membranes (ISMs) are very attractive materials for a wide range of sensing and ion separation applications. The present review focuses on the design principles of various ISMs; nanostructured and ionophore/ion acceptor doped ISMs, and their use in biomedical engineering. Applications of ISMs in the biomedical field have been well-known for more than half a century in potentiometric analysis of biological fluids and pharmaceutical products. However, the emergence of nanotechnology and sophisticated sensing methods assisted in miniaturising ion-selective electrodes to needle-like sensors that can be designed in the form of implantable or wearable devices (smartwatch, tattoo, sweatband, fabric patch) for health monitoring. This article provides a critical review of recent advances in miniaturization, sensing and construction of new devices over last decade (2011-2021). The designing of tunable ISM with biomimetic artificial ion channels offered intensive opportunities and innovative clinical analysis applications, including precise biosensing, controlled drug delivery and early disease diagnosis. This paper will also address the future perspective on potential applications and challenges in the widespread use of ISM for clinical use. Finally, this review details some recommendations and future directions to improve the accuracy and robustness of ISMs for biomedical applications.
Collapse
Affiliation(s)
- Rajni Sharma
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia
| | - Marzieh Geranpayehvaghei
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia; Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115-175, Iran
| | - Fatemeh Ejeian
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 73441-81746, Iran
| | - Amir Razmjou
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia; Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 73441-81746, Iran; Centre for Technology in Water and Wastewater, University of Technology Sydney, New South Wales, Australia; UNESCO Center for Membrane Technology, School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Mohsen Asadnia
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia.
| |
Collapse
|
7
|
Lisak G. Reliable environmental trace heavy metal analysis with potentiometric ion sensors - reality or a distant dream. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117882. [PMID: 34364114 DOI: 10.1016/j.envpol.2021.117882] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/13/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Over two decades have passed since polymeric membrane ion-selective electrodes were found to exhibit sufficiently lower detection limits. This in turn brought a great promise to measure trace level concentrations of heavy metals using potentiometric ion sensors at environmental conditions. Despite great efforts, trace analysis of heavy metals using ion-selective electrodes at environmental conditions is still not commercially available. This work will predominantly concentrate on summarizing and evaluating prospects of using potentiometric ion sensors in view of environmental determination of heavy metals in on-site and on-line analysis modes. Challenges associated with development of reliable potentiometric sensors to be operational in environmental conditions will be discussed and reasoning behind unsuccessful efforts to develop potentiometric on-site and on-line environmental ion sensors will be explored. In short, it is now clear that solely lowering the detection limit of the ion-selective electrodes does not guarantee development of successful sensors that would meet the requirement of environmental matrices over long term usage. More pressing challenges of the properties and the performance of the potentiometric sensors must be addressed first before considering extending their sensitivity to low analyte concentrations. These are, in order of importance, selectivity of the ion-selective membrane to main ion followed by the membrane resistance to parallel processes, such as water ingress to the ISM, light sensitivity, change in temperature, presence of gasses in solution and pH and finally resistance of the ion-selective membrane to fouling. In the future, targeted on-site and on-line environmental sensors should be developed, addressing specific environmental conditions. Thus, ion-selective electrodes should be developed with the intention to be suitable to the operational environmental conditions, rather than looking at universal sensor design validated in the idealized and simple sample matrices.
Collapse
Affiliation(s)
- Grzegorz Lisak
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore.
| |
Collapse
|
8
|
Wiorek A, Hussain G, Molina-Osorio AF, Cuartero M, Crespo GA. Reagentless Acid-Base Titration for Alkalinity Detection in Seawater. Anal Chem 2021; 93:14130-14137. [PMID: 34652903 PMCID: PMC8552213 DOI: 10.1021/acs.analchem.1c02545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
![]()
Herein, we report
on a reagentless electroanalytical methodology
for automatized acid–base titrations of water samples that
are confined into very thin spatial domains. The concept is based
on the recent discovery from our group (WiorekA.2019, 91, 14951−1495931691565), in which polyaniline (PANI) films were found to be an excellent
material to release a massive charge of protons in a short time, achieving
hence the efficient (and controlled) acidification of a sample. We
now demonstrate and validate the analytical usefulness of this approach
with samples collected from the Baltic Sea: the titration protocol
indeed acts as an alkalinity sensor via the calculation of the proton
charge needed to reach pH 4.0 in the sample, as per the formal definition
of the alkalinity parameter. In essence, the alkalinity sensor is
based on the linear relationship found between the released charge
from the PANI film and the bicarbonate concentration in the sample
(i.e., the way to express alkalinity measurements). The observed alkalinity
in the samples presented a good agreement with the values obtained
by manual (classical) acid–base titrations (discrepancies <10%).
Some crucial advantages of the new methodology are that titrations
are completed in less than 1 min (end point), the PANI film can be
reused at least 74 times over a 2 week period (<5% of decrease
in the released charge), and the utility of the PANI film to even
more decrease the final pH of the sample (pH ∼2) toward applications
different from alkalinity detection. Furthermore, the acidification
can be accomplished in a discrete or continuous mode depending on
the application demands. The new methodology is expected to impact
the future digitalization of in situ acid–base titrations to
obtain high-resolution data on alkalinity in water resources.
Collapse
Affiliation(s)
- Alexander Wiorek
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Ghulam Hussain
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Andres F Molina-Osorio
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Maria Cuartero
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Gaston A Crespo
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| |
Collapse
|
9
|
|
10
|
Steininger F, Zieger SE, Koren K. Dynamic Sensor Concept Combining Electrochemical pH Manipulation and Optical Sensing of Buffer Capacity. Anal Chem 2021; 93:3822-3829. [DOI: 10.1021/acs.analchem.0c04326] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Fabian Steininger
- Aarhus University Centre for Water Technology, Department of Biology, Section for Microbiology, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
- Graz University of Technology, Institute of Analytical Chemistry and Food Chemistry, Stremayrgasse 9/II, 8010 Graz, Austria
| | - Silvia E. Zieger
- Aarhus University Centre for Water Technology, Department of Biology, Section for Microbiology, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
| | - Klaus Koren
- Aarhus University Centre for Water Technology, Department of Biology, Section for Microbiology, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
| |
Collapse
|
11
|
Jiang C, He Y, Liu Y. Recent advances in sensors for electrochemical analysis of nitrate in food and environmental matrices. Analyst 2020; 145:5400-5413. [PMID: 32572401 DOI: 10.1039/d0an00823k] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Nitrate is one of the most common contaminants in food and the environment and mainly arises from intense human activities. Electrochemical sensors have been considered as one of the most promising analytical tools for the rapid detection of nitrate in food and environmental matrices due to their quick response, high sensitivity, ease of operation and miniaturisation, and low sample and power consumption. In this review, we summarise advances in sensors for electrochemical analysis of nitrate over the past decade. We also discuss the application of electrochemical sensing systems for the determination of nitrate in the matrices of fresh water, seawater, food, soil and particulate matter.
Collapse
Affiliation(s)
- Chunbo Jiang
- College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia.
| | | | | |
Collapse
|
12
|
Zhu X, Ma J. Recent advances in the determination of phosphate in environmental water samples: Insights from practical perspectives. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115908] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
13
|
Promsuwan K, Kanatharana P, Thavarungkul P, Limbut W. Nitrite amperometric sensor for gunshot residue screening. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135309] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
14
|
Wiorek A, Cuartero M, De Marco R, Crespo GA. Polyaniline Films as Electrochemical-Proton Pump for Acidification of Thin Layer Samples. Anal Chem 2019; 91:14951-14959. [DOI: 10.1021/acs.analchem.9b03402] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Alexander Wiorek
- Department of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Maria Cuartero
- Department of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Roland De Marco
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
- Fuels and Energy Technology Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Gaston A. Crespo
- Department of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| |
Collapse
|
15
|
Affiliation(s)
- Elena Zdrachek
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Eric Bakker
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| |
Collapse
|
16
|
Cuartero M, Crespo G, Cherubini T, Pankratova N, Confalonieri F, Massa F, Tercier-Waeber ML, Abdou M, Schäfer J, Bakker E. In Situ Detection of Macronutrients and Chloride in Seawater by Submersible Electrochemical Sensors. Anal Chem 2018. [DOI: 10.1021/acs.analchem.7b05299] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Maria Cuartero
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Gaston Crespo
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Thomas Cherubini
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Nadezda Pankratova
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | | | - Francesco Massa
- Department of Earth, Environment and Life Sciences, University of Genoa, C.so Europa 26, 16132 Genoa, Italy
| | - Mary-Lou Tercier-Waeber
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Melina Abdou
- UMR CNRS 5805 EPOC, Université de Bordeaux, Bat 18, Allée Geoffroy Saint-Hilaire, 33615 Pessac, France
| | - Jörg Schäfer
- UMR CNRS 5805 EPOC, Université de Bordeaux, Bat 18, Allée Geoffroy Saint-Hilaire, 33615 Pessac, France
| | - Eric Bakker
- Department of Inorganic and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| |
Collapse
|
17
|
Crespo GA. Recent Advances in Ion-selective membrane electrodes for in situ environmental water analysis. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.159] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
18
|
Pankratova N, Cuartero M, Cherubini T, Crespo GA, Bakker E. In-Line Acidification for Potentiometric Sensing of Nitrite in Natural Waters. Anal Chem 2016; 89:571-575. [DOI: 10.1021/acs.analchem.6b03946] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Nadezda Pankratova
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Maria Cuartero
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Thomas Cherubini
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Gaston A. Crespo
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Eric Bakker
- Department of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| |
Collapse
|
19
|
Jansod S, Ghahraman Afshar M, Crespo GA, Bakker E. Alkalinization of Thin Layer Samples with a Selective Proton Sink Membrane Electrode for Detecting Carbonate by Carbonate-Selective Electrodes. Anal Chem 2016; 88:3444-8. [DOI: 10.1021/acs.analchem.6b00346] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sutida Jansod
- Department
of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Majid Ghahraman Afshar
- Department
of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Gastón A. Crespo
- Department
of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Eric Bakker
- Department
of Inorganic and
Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| |
Collapse
|
20
|
Gooding JJ, Kelley SO, Bakker E, Long Y, Tao N(NJ, Mazur AI. Welcome to ACS Sensors. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Yitao Long
- East China University of Science and Technology, Shanghai, China
| | | | | |
Collapse
|