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Krasnodębska-Ostręga B, Drwal K, Sadowska M, Bluszcz D, Miecznikowski K. Corrosion process of stainless steel in natural brine as a source of chromium and iron - the need for routine analysis. RSC Adv 2023; 13:28834-28842. [PMID: 37790094 PMCID: PMC10544036 DOI: 10.1039/d3ra04801b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/15/2023] [Indexed: 10/05/2023] Open
Abstract
The corrosion of the installations carrying high salinity water is particularly important in the case of utility and therapeutic waters, such as natural brine. The analysis of such complex systems is challenging in the context of routine analysis of Fe and Cr. Both elements can be determined by UV-Vis spectrophotometry after only 1 : 100 dilution and liquid-liquid extraction (LODFe = 0.03 mg L-1) or thermal chloride stripping (LODCr = 0.02 mg L-1). The corrosion process was characterized. Electrochemically accelerated corrosion showed uneven decomposition of the steel components - Cr is less easily released to the solution than Fe. Iron comprises 53% of the dissolved part, and Cr comprises 8.6%, while the steel originally contained 62% of Fe and 18% of Cr. During the short-term (one week) contact of the brine with stainless steel, the amounts of Fe and Cr released to the brine were insignificant from the perspective of its therapeutic value.
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Affiliation(s)
| | - Krzysztof Drwal
- Faculty of Chemistry, University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Monika Sadowska
- Faculty of Chemistry, University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Dominika Bluszcz
- Faculty of Chemistry, University of Warsaw Pasteura 1 02-093 Warsaw Poland
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2
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Sierpinski SFD, Baquer LML, Martins CC, Grassi MT. Exploratory evaluation of iron and its speciation in surface waters of Admiralty Bay, King George Island, Antarctica. AN ACAD BRAS CIENC 2023; 95:e20211520. [PMID: 37585980 DOI: 10.1590/0001-3765202320211520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 06/19/2022] [Indexed: 08/18/2023] Open
Abstract
The determination of dissolved iron concentrations and speciation was conducted for the first time in surface seawater coastline samples collected during the austral summer of 2020 in Admiralty Bay, King George Island, Antarctica. The technique of competitive ligand exchange/adsorptive cathodic stripping voltammetry with 2,3-dihydroxynaphthalene as the competing ligand was evaluated, showing a sensitivity between 14.25 and 21.05 nA nmol L-1 min-1, with an LOD of 14 pmol L-1 and a mean blank contribution of 0.248 nmol L-1. Physicochemical parameters such as pH (7.85 ± 0.2), salinity (32.7 ± 0.8) and dissolved oxygen (51.3 ± 26.6%) were compatible with those of the literature; however, the average temperature (4.2 ± 0.8 °C) was higher, possibly as a reflection of global warming. The dissolved iron mean value was 18.9 ± 6.1 nmol L-1, with a total ligand concentration of 23.6 ± 12.2 nmol L-1 and a conditional stability complex constant of 12.2 ± 0.2, indicating humic substances as possible ligands. On average, the calculated free iron concentrations were 0.7 ± 0.3 pmol L-1. Relatively high concentrations of iron indicate a possible local source of Fe, likely predominantly from upwelling sediments and secondarily from ice-melting waters, which does not limit the growth of the phytoplankton.
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Affiliation(s)
- Sheisa F D Sierpinski
- Universidade Federal do Paraná, Departamento de Química, Av. Francisco H. dos Santos, 100, Caixa Postal 19032, 81531-980 Curitiba, PR, Brazil
| | - Luis Miguel Laglera Baquer
- Universidad de las Islas Baleares, FI-TRACE, Departamento de Química, Palma, Islas Baleares, 07122, España
| | - César C Martins
- Universidade Federal do Paraná, Centro de Estudos do Mar, Av. Beira Mar, s/n, Caixa Postal 61, 83255-976 Pontal do Paraná, PR, Brazil
| | - Marco Tadeu Grassi
- Universidade Federal do Paraná, Departamento de Química, Av. Francisco H. dos Santos, 100, Caixa Postal 19032, 81531-980 Curitiba, PR, Brazil
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3
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Concentration, Spatial-Temporal Distribution, and Bioavailability of Dissolved Reactive Iron in Northern Coastal China Seawater. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10070890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The concentrations of total dissolved iron (TdFe) and dissolved reactive iron (DrFe) in the Northern coastal China seawater (Yantai Sishili Bay) in 2018 were determined using cathodic stripping voltammetry (CSV). It was found that while the concentrations of TdFe ranged from 27.8 to 82.0 nM, DrFe concentrations changed in a much narrower range from 6.8 to 13.3 nM. The annual mean concentrations of DrFe also ranged from 7.1 to 12.6 nM at the 12 sites monitored over the 4 years of the study (2017–2020). Considering the obvious changes in temperature (T), chlorophyll a (Chl a) concentrations (Chl a contents were higher in May, July and September than in March and November), and nutrients over a year in this zone, the consumption of DrFe was expected; the supplement of DrFe observed may have resulted from the transformation of strong organically complexed iron by photoreduction and cell surface reduction. Additionally, a pre-liminary conclusion was drawn based on the theoretical calculation of Fe* that the concentration of DrFe was sufficient to meet the phytoplankton demand.
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4
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Almeida JMS, Ribeiro ABP, Toloza CAT, Alves ICB, Santos JRN, De Azevedo LCM, Aucélio RQ, Marques ALB. Simple Voltammetric Determination of Iron in Ethanol and Biodiesel Using a Bismuth Film Coated Glassy Carbon Electrode. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2053701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Joseany M. S. Almeida
- Department of Chemical Technology, (NEPE: LPQA & LAPQAP), Federal University of Maranhão (UFMA), São Luís, Brazil
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
| | - Ana Beatriz P. Ribeiro
- Department of Chemical Technology, (NEPE: LPQA & LAPQAP), Federal University of Maranhão (UFMA), São Luís, Brazil
| | - Carlos A. T. Toloza
- Department of Natural and Exact Sciences, Universidad de la Costa, Barranquilla, Colombia
| | - Ismael C. B. Alves
- Department of Chemical Technology, (NEPE: LPQA & LAPQAP), Federal University of Maranhão (UFMA), São Luís, Brazil
| | - José Ribamar N. Santos
- Department of Chemical Technology, (NEPE: LPQA & LAPQAP), Federal University of Maranhão (UFMA), São Luís, Brazil
| | - Lorena C. M. De Azevedo
- Department of Chemical Technology, (NEPE: LPQA & LAPQAP), Federal University of Maranhão (UFMA), São Luís, Brazil
| | - Ricardo Q. Aucélio
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
| | - Aldaléa L. B. Marques
- Department of Chemical Technology, (NEPE: LPQA & LAPQAP), Federal University of Maranhão (UFMA), São Luís, Brazil
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5
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Ma K, Yang R, Qu S, Zhang Y, Liu Y, Xie H, Zhu M, Bi M. Evidence for coupled iron and nitrate reduction in the surface waters of Jiaozhou Bay. J Environ Sci (China) 2021; 108:70-83. [PMID: 34465438 DOI: 10.1016/j.jes.2021.02.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 06/13/2023]
Abstract
Iron and nitrate (NO3-) are dominant physiologically required nutrients for phytoplankton growth, and iron may also play a key role in the marine nitrogen cycle. In this study, we investigated the temporal and spatial distributions of dissolved iron (DFe) and Fe(II) in the surface waters of Jiaozhou Bay (JZB) from April 2 to July 26, 2017. High concentrations of DFe and Fe(II) predominantly occurred in nearshore and estuarine stations and concentrations were generally higher in April and May. The highest DFe concentration was observed along the coast of Hongdao (51.55 nmol/L) in May, while the lowest concentration was observed in the western coastal region (2.88 nmol/L) in April. The highest and lowest Fe(II) concentrations were observed in the Licun estuary (22.42 nmol/L) and outer bay (0.50 nmol/L) in May, respectively. We calculated the proportions of nitrate, nitrite, and ammonium in dissolved inorganic nitrogen (DIN) as well as the ratio of Fe(II) to DFe in all four months. The mean Fe(II)/DFe ratio was 0.48 in April, 0.43 in May, 0.69 in June, and 0.32 in July. The mean ratio of NO3- to DIN was 0.78 in April, 0.54 in May, 0.20 in June, and 0.62 in July. NO3-/DIN continuously decreased in the first three months, while Fe(II)/DFe remained high, which suggests that the reduction of iron and nitrate occurred simultaneously in the surface waters of JZB.
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Affiliation(s)
- Kunyu Ma
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Rujun Yang
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
| | - Shenglu Qu
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Yingying Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Jiangsu 224051, China; Jiangsu Provincial Key Laboratory of Coastal Ecology and Pollution Control, Yancheng 224051, China.
| | - Yuan Liu
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - He Xie
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Minghan Zhu
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Mengqi Bi
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
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Jiang Q, Reader HE, Stockmann TJ. Electrochemical Characterization of Fe(II) Complexation Reactions at an Electrified Micro Liquid‐Liquid Interface. ChemElectroChem 2021. [DOI: 10.1002/celc.202100127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qi Jiang
- Department of Chemistry Memorial University of Newfoundland 283 Prince Philip Dr. St. John's NL, A1B 3X7
| | - Heather E. Reader
- Department of Chemistry Memorial University of Newfoundland 283 Prince Philip Dr. St. John's NL, A1B 3X7
| | - Talia Jane Stockmann
- Department of Chemistry Memorial University of Newfoundland 283 Prince Philip Dr. St. John's NL, A1B 3X7
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7
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Zhu M, Yang R, Li Y, Su H, Shan Q, Ning Y, Fu S, Wang S. Seasonal and spatial variabilities of dissolved iron in southern Yellow Sea. CHEMOSPHERE 2020; 256:126856. [PMID: 32454349 DOI: 10.1016/j.chemosphere.2020.126856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/07/2020] [Accepted: 04/19/2020] [Indexed: 06/11/2023]
Abstract
The southern Yellow Sea (SYS) is considered to be of the most prolific fishing grounds in the China Sea. In this study, the seasonal and spatial distributions of total dissolved iron (DFe) are investigated across four seasons in the SYS, from July 2013 to January 2016. This investigation showed that the DFe values of all samples exhibited seasonal variations: summer (1.7-15.8 nM), autumn (0.9-38.5 nM), winter (3.0-69.8 nM), and spring (3.0-100.2 nM). The DFe values in both surface and bottom waters also exhibited distinct temporal changes. The influence of water masses on the distribution of DFe as well as other factors, such as major nutrient concentrations of total dissolved nitrogen, total dissolved phosphate, and hydrologic factors, was investigated in this study. Based on the investigation of DFe and major nutrients in the SYS, the Yellow Sea Cold Water Mass was identified as the most conservable water mass in the study area. The results of this study further indicate that in winter, DFe0.4 μm (using a 0.4 μm filter) is considerably higher than DFe0.2 μm (using a 0.2 μm filter) in the surface water of the SYS coastal area. Therefore, the dissolution of colloidal Fe in this area had a significant effect on DFe.
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Affiliation(s)
- Minghan Zhu
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
| | - Rujun Yang
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China.
| | - Yan Li
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
| | - Han Su
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
| | - Qianqian Shan
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
| | - Yutong Ning
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
| | - Shulin Fu
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
| | - Shirong Wang
- College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao, 266100, PR China
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8
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Arı B, Can SZ, Bakırdere S. Traceable and accurate quantification of iron in seawater using isotope dilution calibration strategies by triple quadrupole ICP-MS/MS: Characterization measurements of iron in a candidate seawater CRM. Talanta 2020; 209:120503. [DOI: 10.1016/j.talanta.2019.120503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/20/2019] [Accepted: 10/23/2019] [Indexed: 01/16/2023]
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9
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Strategies for the characterization and optimization of adsorptive stripping voltammetry with catalytic enhancement for ultratrace element determination: The case of iron 2,3-dihydroxynaphthalene complex with catalytic enhancement by atmospheric oxygen. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Sanvito F, Pacileo L, Monticelli D. Fostering and Understanding Iron Detection at the Ultratrace Level by Adsorptive Stripping Voltammetry with Catalytic Enhancement. ELECTROANAL 2019. [DOI: 10.1002/elan.201800675] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Francesca Sanvito
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; via Valleggio 11 22100 Como Italy
| | - Lucia Pacileo
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; via Valleggio 11 22100 Como Italy
| | - Damiano Monticelli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; via Valleggio 11 22100 Como Italy
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11
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Raveendran V, Suresh Babu AR, Renuka NK. Mint leaf derived carbon dots for dual analyte detection of Fe(iii) and ascorbic acid. RSC Adv 2019; 9:12070-12077. [PMID: 35517017 PMCID: PMC9063547 DOI: 10.1039/c9ra02120e] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 04/04/2019] [Indexed: 01/06/2023] Open
Abstract
Highly luminescent carbon dots (CDs) are obtained from mint leaves adopting a simple and cost effective route devoid of additional chemical reagents and functionalization.
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12
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Lin M, Hu X, Pan D, Han H. Determination of iron in seawater: From the laboratory to in situ measurements. Talanta 2018; 188:135-144. [PMID: 30029355 DOI: 10.1016/j.talanta.2018.05.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/20/2018] [Accepted: 05/21/2018] [Indexed: 11/25/2022]
Abstract
The marine biogeochemistry of iron plays a significant role in regulating climate change. Trace dissolved iron in oceanic surface water can limit phytoplankton growth which in turn limits the carbon dioxide flux at the air/sea interface. To better understand the relationship between iron and its different species with phytoplankton, as well as the biogeochemical cycle of iron in seawater, accurate, sensitive, and in situ methods are needed for iron determination. This paper reviews the methods for determining iron in seawater from the laboratory, shipboard to in situ measurements, including such strategies as atomic spectrometry, spectrophotometry, chemiluminescence, and voltammetry, which will provide the foundation for developing reliable long-term iron monitoring and sensing platforms in the future.
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Affiliation(s)
- Mingyue Lin
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Xueping Hu
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Dawei Pan
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Haitao Han
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
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13
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Xu H, Zhou S, Liu J, Wei Y. Nanospace-confined preparation of uniform nitrogen-doped graphene quantum dots for highly selective fluorescence dual-function determination of Fe3+ and ascorbic acid. RSC Adv 2018; 8:5500-5508. [PMID: 35542405 PMCID: PMC9078092 DOI: 10.1039/c7ra13001e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 01/27/2018] [Indexed: 12/27/2022] Open
Abstract
N-Doped graphene quantum dots (N-GQDs) combine the advantages of N-doped carbon and quantum dot materials, displaying enhanced performance in electrocatalysis, drug delivery, sensing and so on. In this work, novel hydrotropic N-GQDs with controlled size are obtained for the first time via a nanospace-confined preparation strategy, in which HNO3 vapour serves as scissors for quickly cutting the N-doped carbon nanolayer in the confined nanospace of reusable mesoporous molecular sieves. The as-prepared N-GQDs exhibit a uniform lateral size of about 2.4 nm, high photostability and yellow fluorescence, which is strongly quenched upon addition of ferric ions due to the coordination between ferric ions and N/O-rich groups of the N-GQDs surface. Significantly, the fluorescence response to Fe3+ is linear in the 0.5 to 40 μM concentration range and the N-GQDs showed good selectivity and satisfying recovery for ferric ion detection in tap water. Noteworthily, the quenched fluorescence by Fe3+ can be recovered by adding ascorbic acid (AA), which efficiently destroyed the coordination between Fe3+ and N-GQDs. Based on this principle, the N-GQDs were used to successfully construct an AA sensor, exhibiting a wide linearity range (between 0.5 and 90 μM) with a low detection of limit (80 nM at S/N = 3) and better selectivity towards AA compared with other common physiological substances. Finally, the constructed fluorescence sensor was employed successfully for AA determination in fish blood with satisfactory recovery ranging from 95.3 to 106.2%. The results indicate that N-GQDs synthesized by the nanospace-confined strategy are promising in biosensor fabrication. Nanospace-confined synthesis of N-GQDs was successfully achieved via a mesoporous silica recycling and vapor cutting route for label-free fluorescence dual-function detection of Fe3+ and AA.![]()
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Affiliation(s)
- Hongbo Xu
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
| | - Shenghai Zhou
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
| | - Jinyu Liu
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
| | - Yajun Wei
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
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Sheikhshoaie M, Karimi-Maleh H, Sheikhshoaie I, Ranjbar M. Voltammetric amplified sensor employing RuO 2 nano-road and room temperature ionic liquid for amaranth analysis in food samples. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.088] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Zhang J, Cai C, Razzaque S, Hussain I, Lu QW, Tan B. Synthesis of water-soluble and highly fluorescent gold nanoclusters for Fe3+ sensing in living cells using fluorescence imaging. J Mater Chem B 2017. [DOI: 10.1039/c7tb00966f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanoclusters are used as excellent scaffolds for the development of chemical and biological sensors due to their outstanding physical and chemical properties.
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Affiliation(s)
- Jianqiao Zhang
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- Hubei Key Laboratory of Material Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
| | - Chen Cai
- Key Laboratory of Molecular Biophysics of Ministry of Education
- College of Life Science and Technology
- Center for Human Genome Research
- Huazhong University of Science and Technology
- Wuhan
| | - Shumaila Razzaque
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- Hubei Key Laboratory of Material Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
| | - Irshad Hussain
- Department of Chemistry
- SBA School of Science & Engineering (SSE)
- Lahore University of Management Sciences (LUMS)
- DHA
- Lahore Cantt-54792
| | - Qun-Wei Lu
- Key Laboratory of Molecular Biophysics of Ministry of Education
- College of Life Science and Technology
- Center for Human Genome Research
- Huazhong University of Science and Technology
- Wuhan
| | - Bien Tan
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- Hubei Key Laboratory of Material Chemistry and Service Failure
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
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16
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Vettorelo SN, Garay F. Adsorptive square-wave voltammetry of quasi-reversible electrode processes with a coupled catalytic chemical reaction. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3273-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Laglera LM, Caprara S, Monticelli D. Towards a zero-blank, preconcentration-free voltammetric method for iron analysis at picomolar concentrations in unbuffered seawater. Talanta 2016; 150:449-54. [PMID: 26838429 DOI: 10.1016/j.talanta.2015.12.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/18/2015] [Accepted: 12/22/2015] [Indexed: 11/17/2022]
Abstract
A method with negligible blank values for the determination of total iron at the ultratrace level in seawater has been optimized and validated exploring for the first time the performance and limitations of Adsorptive Cathodic Stripping Voltammetry (AdCSV) in non-buffered solutions. The method is based on the CSV determination of the Fe-dihydroxynaphthalene (DHN) complex using atmospheric oxygen to catalytically enhance the signal via hydrogen peroxide formation at the electrode/solution interface. The accumulation of hydroxyl ions, the by-product of the hydrogen peroxide formation, increased the pH in the diffusion layer in the absence of buffer bringing it to 9, the optimum for the analytical performance of the method. Voltammograms in UV digested seawater showed no stability or reproducibility drawbacks. The negligible, lower than 5pM, blank level, is due to the simplicity of the procedure requiring no sample manipulation and a maximum of three reagents only, necessarily the ligand DHN and a base only for those samples previously acidified to raise the pH to circumneutral values (here HCl and NH3 according to common trace metals protocols). These reagents do not require cleaning before use, further simplifying the overall procedure. Analysis of seawater previously acidified at pH ~1.5 with HCl and neutralized with ammonia showed interferences due to the buffering properties of the NH3/NH4Cl couple and the transient formation of a volatile electroactive interference that can be easily removed by simply allowing a set time before analysis. In general, the proposed method features several advantages, including high sample throughput, an excellent limit of detection at 12pM, minimum sample handling (no preconcentration or change of matrix is required), cost effectiveness and mainly a negligible blank. The method was successfully validated using open ocean consensus samples (SAFe D2 and S).
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Affiliation(s)
- Luis M Laglera
- FI-TRACE, Departamento de Química, Universidad de las Islas Baleares, Palma, Balearic Islands 07122, Spain.
| | - Salvatore Caprara
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, via Valleggio 11, 22100 Como, Italy
| | - Damiano Monticelli
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, via Valleggio 11, 22100 Como, Italy
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18
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Hu X, Pan D, Lin M, Han H, Li F. Graphene oxide-assisted synthesis of bismuth nanosheets for catalytic stripping voltammetric determination of iron in coastal waters. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1733-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Caprara S, Laglera LM, Monticelli D. Ultrasensitive and Fast Voltammetric Determination of Iron in Seawater by Atmospheric Oxygen Catalysis in 500 μL Samples. Anal Chem 2015; 87:6357-63. [DOI: 10.1021/acs.analchem.5b01239] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Salvatore Caprara
- Dipartimento
di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, via Valleggio 11, 22100 Como, Italy
| | - Luis M. Laglera
- FI-TRACE,
Departamento de Química, Universidad de las Islas Baleares, Palma, Balearic
Islands 07122, Spain
| | - Damiano Monticelli
- Dipartimento
di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, via Valleggio 11, 22100 Como, Italy
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20
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Laglera LM, Santos-Echeandía J, Caprara S, Monticelli D. Quantification of Iron in Seawater at the Low Picomolar Range Based on Optimization of Bromate/Ammonia/Dihydroxynaphtalene System by Catalytic Adsorptive Cathodic Stripping Voltammetry. Anal Chem 2013; 85:2486-92. [DOI: 10.1021/ac303621q] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luis Miguel Laglera
- FI-TRACE, Departamento
de Química, Universidad de las Islas Baleares, Palma, Balearic
Islands 07122, Spain
| | - Juan Santos-Echeandía
- Marine Biogeochemistry
Group, Instituto de Investigaciones Marinas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - Salvatore Caprara
- Dipartimento di Scienza
e Alta Tecnologia, Università degli Studi dell’Insubria, via Valleggio 11, 22100
Como, Italy
| | - Damiano Monticelli
- Dipartimento di Scienza
e Alta Tecnologia, Università degli Studi dell’Insubria, via Valleggio 11, 22100
Como, Italy
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21
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Du Y, Chen M, Zhang Y, Luo F, He C, Li M, Chen X. Determination of iron(III) based on the fluorescence quenching of rhodamine B derivative. Talanta 2012; 106:261-5. [PMID: 23598126 DOI: 10.1016/j.talanta.2012.10.078] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/19/2012] [Accepted: 10/25/2012] [Indexed: 10/27/2022]
Abstract
A new method for determination of iron(III) has been developed using a kind of rhodamine B derivative fluorescent probe, rhodamine amide (RHA), in acidic HAc-NaAc buffer solution. In this approach, the heavy atom effect of I₃(-) was applied to quench the fluorescence of RHA. When iron(III) and KI coexisted in HAc-NaAc buffer solution, iron(III) reacted with the excess KI to produce I₃(-) that quenched the fluorescence of RHA through the formation of a non-fluorescence compound. The results showed that the fluorescence intensity decrease of RHA presented a good linear relationship with the iron(III) concentrations in the range from 0.5 to 5.0 μmol L(-1) with the correlation coefficient of 0.9970, and the detection limit was 0.3 μmol L(-1) iron(III). The approach was applied to determination of iron(III) in water samples, and the recovery was found to be from 80.7% to 100. 8%.
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Affiliation(s)
- Yanyan Du
- Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou 350002, China
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22
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23
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Cheize M, Sarthou G, Croot PL, Bucciarelli E, Baudoux AC, Baker AR. Iron organic speciation determination in rainwater using cathodic stripping voltammetry. Anal Chim Acta 2012; 736:45-54. [PMID: 22769004 DOI: 10.1016/j.aca.2012.05.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 04/10/2012] [Accepted: 05/10/2012] [Indexed: 11/28/2022]
Abstract
A sensitive method using Competitive Ligand Exchange-Adsorptive Cathodic Stripping Voltammetry (CLE-ACSV) has been developed to determine for the first time iron (Fe) organic speciation in rainwater over the typical natural range of pH. We have adapted techniques previously developed in other natural waters to rainwater samples, using the competing ligand 1-nitroso-2-naphthol (NN). The blank was equal to 0.17±0.05 nM (n=14) and the detection limit (DL) for labile Fe was 0.15 nM which is 10-70 times lower than that of previously published methods. The conditional stability constant for NN under rainwater conditions was calibrated over the pH range 5.52-6.20 through competition with ethylenediaminetetraacetic acid (EDTA). The calculated value of the logarithm of β'(Fe(3+)(NN)(3)) increased linearly with increasing pH according to log β'(Fe(3+)(NN)(3)) (salinity=2.9, T=20 °C). The validation of the method was carried out using desferrioxamine mesylate B (DFOB) as a natural model ligand for Fe. Adequate detection windows were defined to detect this class of ligands in rainwater with 40 μM of NN from pH 5.52 to 6.20. The concentration of Fe-complexing natural ligands was determined for the first time in three unfiltered and one filtered rainwater samples. Organic Fe-complexing ligand concentrations varied from 104.2±4.1 nM equivalent of Fe(III) to 336.2±19.0 nM equivalent of Fe(III) and the logarithm of the conditional stability constants, with respect to Fe(3+), varied from 21.1±0.2 to 22.8±0.3. This method will provide important data for improving our understanding of the role of wet deposition in the biogeochemical cycling of iron.
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Affiliation(s)
- Marie Cheize
- Université Européenne de Bretagne, Rennes, France.
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24
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Santos-Echeandía J. Direct simultaneous determination of Co, Cu, Fe, Ni and V in pore waters by means of adsorptive cathodic stripping voltammetry with mixed ligands. Talanta 2011; 85:506-12. [DOI: 10.1016/j.talanta.2011.04.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 04/04/2011] [Accepted: 04/11/2011] [Indexed: 10/18/2022]
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25
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Yang R, Van den Berg CMG. Metal complexation by humic substances in seawater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:7192-7197. [PMID: 19848121 DOI: 10.1021/es900173w] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We determined the complex stability of copper, zinc, cobalt and aluminum with humic acid (HA) and fulvic acid (FA) in pH 8 seawater. The method is based on metal competition against iron, for which the complex stability with humic substances (HS) in seawater had been calibrated previously against EDTA. The conditional stability constants, log K'(Mn+HS) values, were found to decrease in the order of Cu > Zn > Co and Fe > Al. The complex stability of the HA species was greater than the FA species, but all determined complex stabilities are sufficiently high for significant complexation of the examined metals by HS in seawater. Data modeling shows a good data fit over the entire titrations for Cu and Co and for low levels of Zn. A second site on the HS appears to bind higher levels of Zn. The Al data suggest that Fe is exchanged for Al at a ratio different from 1:1. The data suggests that HS may be an important ligand for these metals in seawater.
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Affiliation(s)
- Rujun Yang
- Department of Earth and Ocean Sciences, University of Liverpool, Liverpool L69 3GP, United Kingdom
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26
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Zamani HA, Ganjali MR, Behmadi H, Behnajady MA. Fabrication of an iron(III) PVC-membrane sensor based on bis-benzilthiocarbohydrazide as a selective sensing material. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.12.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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28
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Laglera LM, Battaglia G, van den Berg CMG. Determination of humic substances in natural waters by cathodic stripping voltammetry of their complexes with iron. Anal Chim Acta 2007; 599:58-66. [PMID: 17765064 DOI: 10.1016/j.aca.2007.07.059] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 07/12/2007] [Accepted: 07/23/2007] [Indexed: 10/23/2022]
Abstract
A new voltammetric method is presented for the measurement of humic substances (HS) in natural waters. The method is based on catalytic cathodic stripping voltammetry (CSV) and makes use of adsorptive properties of iron-HS complexes on the mercury drop electrode at natural pH. A fulvic acid standard (IHSS) was used to confirm the voltammetric response (peak potential and sensitivity) for the HS for natural water samples. Optimized conditions included the linear-sweep mode, deposition at -0.1 V, pH buffered at 8 and a scan rate of 50 mV s(-1). At a deposition time of 240 s in the presence of 10 nM iron and 30 mM bromate, the detection limit was 5 microg L(-1) HS in seawater, which could be lowered further by an increase in the bromate concentration, or in the adsorption time. The method was used to determine HS in the Irish Sea which were found to occur at levels between 60 and 600 microg L(-1). The new method is sufficiently sensitive to detect the low HS content in oceanic samples and has implications to the study of iron speciation.
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Affiliation(s)
- Luis M Laglera
- Department of Earth and Ocean Sciences, University of Liverpool, Liverpool L69 3GP, UK
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29
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Riso RD, Pernet-Coudrier B, Waeles M, Le Corre P. Dissolved iron analysis in estuarine and coastal waters by using a modified adsorptive stripping chronopotentiometric (SCP) method. Anal Chim Acta 2007; 598:235-41. [PMID: 17719897 DOI: 10.1016/j.aca.2007.07.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Revised: 07/11/2007] [Accepted: 07/17/2007] [Indexed: 11/26/2022]
Abstract
An electrochemical method based on adsorptive stripping chronopotentiometry (SCP) with a rotating mercury film electrode has been developed for the determination of dissolved iron (III) at subnanomolar concentrations in estuarine and coastal waters. The detection limit was 0.11 nM after adsorption time of 60s. Compared to the other chronopotentiometric methods available for dissolved iron measurement in natural and estuarine waters, the procedure described here exhibits a 15-fold better sensitivity. Therefore, it allows one to accurately quantify concentrations commonly found in estuarine and coastal waters. Moreover, by using the speciation scheme proposed by Aldrich and van den Berg (Electroanalysis 10 (1998) 369), several forms could be measured, i.e. reactive iron (Fe R) and reactive iron (III) (Fe(III) R), or estimated, i.e. complexed iron (Fe C) and reactive iron (II) (Fe(II) R). The method described here is reliable, fast, inexpensive and compact. It was applied successfully to the study of the chemical speciation of dissolved iron along the salinity gradient of the Aulne estuary (Brittany-France).
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Affiliation(s)
- Ricardo D Riso
- Laboratoire de Chimie Marine, Université de Bretagne Occidentale (IUEM), UMR CNRS et UPMC 7144 (Roscoff), Place Nicolas Copernic, Technopôle Brest-Iroise, 29280 Plouzané, France.
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30
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van den Berg CMG. Chemical speciation of iron in seawater by cathodic stripping voltammetry with dihydroxynaphthalene. Anal Chem 2007; 78:156-63. [PMID: 16383323 DOI: 10.1021/ac051441+] [Citation(s) in RCA: 165] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The chemical speciation of iron in seawater is determined by cathodic stripping voltammetry using 2,3-dihydroxynaphthalene (DHN) as adsorptive and competing ligand. The optimized conditions include a DHN concentration of 0.5-1 microM, seawater at its original pH of 8, and equilibration overnight. The alpha-coefficient for DHN (=[FeDHN]/[Fe']) was calibrated against EDTA giving values of 166 for 0.5 microM DHN and 366 at 1 microM DHN and a value of 8.51 +/- 0.07 for log K'(Fe'DHN). The dissociation of the natural iron species FeL was found to have a characteristic reaction time of 50 min, indicating that titrations should be equilibrated overnight rather than the shorter periods sometimes used onboard ship. The method was applied to samples from the Pacific giving ligand concentrations of 1.1 and 1.6 nM for deep and surface waters, respectively, with an average value for log K'(FeL) of 11.9 +/- 0.3 compared to a value of 11.5 for the siderophore deferoxamine. The results are similar to those obtained previously for similar samples, but the new method has much greater sensitivity for iron than previous methods, leading to lower limits of detection and shorter analysis time.
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31
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ZHANG F, ZHANG M, CHENG J, YANG L, JI M, BI S. Direct Voltammetric Specific Recognition of Dopamine Using AlIII-DA Complexes at the Hanging Mercury Drop Electrode. ANAL SCI 2007; 23:1325-9. [DOI: 10.2116/analsci.23.1325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Fuping ZHANG
- School of Chemistry & Chemical Engineering, MOE Key Laboratory for Life Science & State Key Laboratory of Coordination Chemistry of China, Nanjing University
| | - Min ZHANG
- School of Chemistry & Chemical Engineering, MOE Key Laboratory for Life Science & State Key Laboratory of Coordination Chemistry of China, Nanjing University
| | - Jiongjia CHENG
- School of Chemistry & Chemical Engineering, MOE Key Laboratory for Life Science & State Key Laboratory of Coordination Chemistry of China, Nanjing University
| | - Li YANG
- School of Chemistry & Chemical Engineering, MOE Key Laboratory for Life Science & State Key Laboratory of Coordination Chemistry of China, Nanjing University
| | - Ming JI
- School of Chemistry & Chemical Engineering, MOE Key Laboratory for Life Science & State Key Laboratory of Coordination Chemistry of China, Nanjing University
| | - Shuping BI
- School of Chemistry & Chemical Engineering, MOE Key Laboratory for Life Science & State Key Laboratory of Coordination Chemistry of China, Nanjing University
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32
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Chung Chun Lam CKS, Jickells TD, Richardson DJ, Russell DA. Fluorescence-Based Siderophore Biosensor for the Determination of Bioavailable Iron in Oceanic Waters. Anal Chem 2006; 78:5040-5. [PMID: 16841927 DOI: 10.1021/ac060223t] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
With direct evidence that iron is the chemical limitation of phytoplankton growth, particularly in the Southern Ocean, it is increasingly important to develop new tools that provide direct measurement of the bioavailable iron fraction in oceanic waters. Here we report the development of a fluorescence quenching-based siderophore biosensor capable of the in situ measurement of this ultratrace Fe(III) fraction at ambient pH ( approximately 8). Parabactin was extracted from cultures of Paracoccus denitrificans. The purified siderophore was encapsulated within a spin-coated sol-gel thin film, which was subsequently incorporated in a flow cell system. The parabactin biosensor has been fully characterized for the detection of Fe(III) in seawater samples. The biosensor can be regenerated by lowering the pH of the flowing solution, thereby releasing the chelated Fe(III), enabling multiple use. The LOD of the biosensor was determined to be 40 pM, while for an Fe(III) concentration of 1 nM, a reproducibility with a RSD of 6% (n = 10) was obtained. The accuracy of the biosensing system has been determined through analysis of a certified seawater reference sample. Samples from the Atlantic Ocean have been analyzed using the parabactin biosensor providing a concentration vs depth profile for the bioavailable Fe(III) fraction in the 50 pM-1 nM range.
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Affiliation(s)
- Cathy K S Chung Chun Lam
- School of Chemical Sciences and Pharmacy, School of Environmental Sciences, and School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
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33
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Gun J, Salaün P, van den Berg CMG. Advantages of using a mercury coated, micro-wire, electrode in adsorptive cathodic stripping voltammetry. Anal Chim Acta 2006; 571:86-92. [PMID: 17723424 DOI: 10.1016/j.aca.2006.04.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2006] [Revised: 04/12/2006] [Accepted: 04/20/2006] [Indexed: 11/23/2022]
Abstract
A mercury coated, gold, micro-wire electrode is used here for the determination of iron in seawater by catalytic cathodic stripping voltammetry (CSV) with a limit of detection of 0.1 nM Fe at a 60s adsorption time. It was found that the electrode surface is stable for extended periods of analyses (at least five days) and that it is reactivated by briefly (2s) applying a negative potential prior to each scan. Advantages of this electrode over mercury drop electrodes are that metallic mercury use is eliminated and that it can be readily used for flow analysis. This is demonstrated here by the determination of iron in seawater by continuous flow analysis. It is likely that this method can be extended to other elements. Experiments using bismuth coated, carbon fibre, electrodes showed that the bismuth catalyses the oxidation of the important oxidants bromate and hydrogen peroxide, which makes it impossible to use bismuth based electrodes for catalytic CSV involving these oxidants. For this reason mercury coated electrodes retain a major advantage for catalytic voltammetric analyses.
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Affiliation(s)
- Jenny Gun
- The Laboratory of Environmental Chemistry, The Casali Institute of Applied Chemistry, Hebrew University, Jerusalem 91904, Israel
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34
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Miura J, Zhang C, Nagaosa Y, Kato T. Highly Selective Determination of Total Iron in Environmental Water Samples by HPLC. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826070500364454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jun'ichiro Miura
- a Department of Applied Chemistry and Biotechnology , University of Fukui , Fukui, Japan
| | - Cheng‐jie Zhang
- a Department of Applied Chemistry and Biotechnology , University of Fukui , Fukui, Japan
| | - Yukio Nagaosa
- a Department of Applied Chemistry and Biotechnology , University of Fukui , Fukui, Japan
| | - Takunori Kato
- b Hokkaido Institute of Environmental Sciences , Kita‐Ku, Sapporo, Japan
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35
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Riso RD, Waeles M, Pernet-Coudrier B, Le Corre P. Determination of dissolved iron(III) in estuarine and coastal waters by adsorptive stripping chronopotentiometry (SCP). Anal Bioanal Chem 2006; 385:76-82. [PMID: 16552536 DOI: 10.1007/s00216-006-0393-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2005] [Revised: 02/17/2006] [Accepted: 02/22/2006] [Indexed: 10/24/2022]
Abstract
An adsorptive stripping chronopotentiometric (SCP) method has been developed for quantification of dissolved iron in estuarine and coastal waters. After UV-digestion of filtered samples the Fe(III) ions in non-deoxygenated samples were complexed with solochrom violet RS (SVRS). The complexes were then accumulated by adsorption on the surface of a mercury-film electrode. The stripping step was performed by applying a constant current of -17 microA. Sensitivity and detection limit were 15 ms nmol(-1) L (270 ms microg(-1) L) and 1.5 nmol L(-1) (84 ng L(-1)), respectively, for 60-s electrolysis time. Compared with the only other chronopotentiometric method available for measurement of iron in natural waters, our procedure is fifty times more sensitive in a quarter of the electrolysis time. It therefore enables detection of the concentrations currently found in estuarine and coastal waters. The method was successfully used to study the behaviour and seasonal variations of dissolved iron in the Penzé estuary, NW France.
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Affiliation(s)
- Ricardo D Riso
- Laboratoire de Chimie Marine, Université de Bretagne Occidentale (IUEM), UMR CNRS 7144 Roscoff, Place Nicolas Copernic, Technopôle Brest-Iroise, 29280 Plouzané, France.
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36
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Mikkelsen Ø, van den Berg C, Schrøder K. Determination of Labile Iron at Low nmol L−1 Levels in Estuarine and Coastal Waters by Anodic Stripping Voltammetry. ELECTROANAL 2006. [DOI: 10.1002/elan.200503360] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Li YH, Long H, Zhou FQ. Determination of trace tin by catalytic adsorptive cathodic stripping voltammetry. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.08.047] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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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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39
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Zhang F, Ji M, Xu Q, Yang L, Bi S. Linear scan voltammetric indirect determination of AlIII by the catalytic cathodic response of norepinephrine at the hanging mercury drop electrode. J Inorg Biochem 2005; 99:1756-61. [PMID: 16039719 DOI: 10.1016/j.jinorgbio.2005.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2005] [Revised: 05/24/2005] [Accepted: 06/09/2005] [Indexed: 10/25/2022]
Abstract
The biological effects of aluminum (Al) have received much attention in recent years. Al is of basic relevance as concern with its reactivity and bioavailability. In this paper, the electrochemical behaviors of norepinephrine (NE) in the absence and presence of Al(III) at the hanging mercury drop electrode have been studied and applied to the practical analysis. Highly selective catalytic cathodic peak of NE is yielded by linear scan voltammetry (LSV) at -1.32 V (vs. SCE). A linear relationship holds between the cathodic peak current and the Al(III) concentration. It has been successfully applied to the determination of Al(III) in real waters and synthetic biological samples with satisfying results, which are in accordance with those obtained by ICP-AES method. The electrochemical properties and the mechanisms of the peaks in the presence and absence of Al(III) have been explored. The results show that they are irreversible adsorptive hydrogen catalytic waves. These studies not only enrich the methods of determining Al, but also lay foundations of further understanding of the mechanisms of neurodementia.
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Affiliation(s)
- Fuping Zhang
- Department of Chemistry, State Key Laboratory of Coordination Chemistry of China, Key Laboratory of MOE for Life Science, Nanjing University, Nanjing 210093, PR China
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40
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Park EH, Chung KH. Determination of Lead (II) at Glassy Carbon Electrodes Modified with Nafion-DTPA-Glycerol. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2005. [DOI: 10.5012/jkcs.2005.49.4.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Determination of Iron in Natural and Drinking Waters by Stripping Voltammetry. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/s10809-005-0156-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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The role of adsorption in the catalytic electrode mechanism studied by means of square-wave voltammetry. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2004.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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43
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Doğutan M, Filik H, Apak R. Preconcentration of manganese(II) from natural and sea water on a palmitoyl quinolin-8-ol functionalized XAD copolymer resin and spectrophotometric determination with the formaldoxime reagent. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00408-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Bobrowski A, Królicka A. A Novel Catalytic Adsorptive Stripping Voltammetric Method of Iron Determination as Its 1,2-Cyclohexanedione Dioxime Complex. ELECTROANAL 2003. [DOI: 10.1002/elan.200390074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Particle-based detection of DNA hybridization using electrochemical stripping measurements of an iron tracer. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00206-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Bowie AR, Achterberg EP, Sedwick PN, Ussher S, Worsfold PJ. Real-time monitoring of picomolar concentrations of iron(II) in marine waters using automated flow injection-chemiluminescence instrumentation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2002; 36:4600-4607. [PMID: 12433170 DOI: 10.1021/es020045v] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A shipboard-deployable, flow-injection (FI) based instrument for monitoring iron(II) in surface marine waters is described. It incorporates a miniature, low-power photon-counting head for measuring the light emitted from the iron(II)-catalyzed chemiluminescence (CL) luminol reaction. System control, signal acquisition, and data processing are performed in a graphical programming environment. The limit of detection for iron(II) is in the range 8-12 pmol L(-1) (based on 3 s of the blank), and the precision over the range 8-1000 pmol L(-1) varies between 0.9 and 7.6% (n = 4). Results from a day-night deployment during a north-to-south transect of the Atlantic Ocean and a daytime transect in the Sub-Antarctic Front are presented together with ancillary temperature, salinity, and irradiance data. The generic nature of the components used to assemble the instrument make the technology readily transferable to other laboratories and the modular construction makes it easy to adapt the system for use with other CL chemistries.
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47
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Development of an Analytical Method for the Spectrometric Simultaneous Determination of Fe 2+and Fe 3+Ions Using a Technique of Flow Injection Analysis. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2002. [DOI: 10.5012/jkcs.2002.46.5.419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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48
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Affiliation(s)
- Eric Bakker
- Department of Chemistry, Auburn University, Alabama 36849, USA
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