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Liu Y, Yu C, Cao Z, Shvarts D, Trogler WC. A Highly Sensitive Enzymatic Catalysis System for Trace Detection of Arsenic in Water. Chemistry 2017. [PMID: 28631380 DOI: 10.1002/chem.201702769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Arsenic (As) is an extremely toxic element that exists in the environment in different chemical forms. The detection of arsenic in potable water remains a challenging task. This study presents a highly sensitive enzymatic catalysis system for trace sensing of inorganic arsenic in water. This is the first enzyme-catalyzed fluorescence assay capable of detecting arsenic at concentrations below the allowable level adopted by the World Health Organization (10 ppb in drinking water). The enzyme catalytically produces fluorescent NADH in the presence of arsenate, which enables facile detection of arsenate at concentrations in the 0-200 ppb range. Calibration curves made at a set time interval allow accurate determination of unknown arsenic samples. This method holds potential for interfacing with automated analytical sampling systems to allow arsenic determinations in environmental health applications.
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Affiliation(s)
- Yuanli Liu
- Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, California, 92093-0358, USA
| | - Chuanbai Yu
- Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, California, 92093-0358, USA
| | - Zhixin Cao
- Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, California, 92093-0358, USA
| | - Daniel Shvarts
- Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, California, 92093-0358, USA
| | - William C Trogler
- Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, 9500 Gilman Drive, La Jolla, California, 92093-0358, USA
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Ma J, Sengupta MK, Yuan D, Dasgupta PK. Speciation and detection of arsenic in aqueous samples: A review of recent progress in non-atomic spectrometric methods. Anal Chim Acta 2014; 831:1-23. [DOI: 10.1016/j.aca.2014.04.029] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 04/08/2014] [Accepted: 04/15/2014] [Indexed: 11/26/2022]
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Tănase IGH, Popa DE, David IG, Buleandră M. Single Laboratory Validation of a Method for the Determination of Total Inorganic Arsenic by Hydride Generation Atomic Absorption Spectrometry. ANAL LETT 2010. [DOI: 10.1080/00032710903518609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Butt SB, Riaz M. Determination of Cations and Anions in Environmental Samples by HPLC: Review. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070902841299] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- S. Bilal Butt
- a Central Analytical Facility Division, PINSTECH , P.O. Nilore, Islamabad, Pakistan
| | - M. Riaz
- b Chemistry Division, PINSTECH , P.O. Nilore, Islamabad, Pakistan
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Gonzalvez A, Cervera M, Armenta S, de la Guardia M. A review of non-chromatographic methods for speciation analysis. Anal Chim Acta 2009; 636:129-57. [DOI: 10.1016/j.aca.2009.01.065] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2008] [Revised: 01/28/2009] [Accepted: 01/28/2009] [Indexed: 11/17/2022]
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Mallajosyula SS, Usha H, Datta A, Pati SK. Molecular modelling of a chemodosimeter for the selective detection of As(III) ion in water. J CHEM SCI 2009. [DOI: 10.1007/s12039-008-0095-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Chowdhury AN, Ferdousi S, Islam MM, Okajima T, Ohsaka T. Arsenic detection by nanogold/conducting-polymer-modified glassy carbon electrodes. J Appl Polym Sci 2007. [DOI: 10.1002/app.25785] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Cosnier S, Mousty C, Cui X, Yang X, Dong S. Specific Determination of As(V) by an Acid Phosphatase−Polyphenol Oxidase Biosensor. Anal Chem 2006; 78:4985-9. [PMID: 16841921 DOI: 10.1021/ac060064d] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An original amperometric biosensor based on the simultaneous entrapment of acid phosphatase (AcP) and polyphenol oxidase (PPO) into anionic clays (layered double hydroxides) was developed for the specific detection of As(V). The functioning principle of the bienzyme electrode consisted of the successive hydrolysis of phenyl phosphate into phenol by AcP, followed by the oxidation of phenol into o-quinone by PPO. The phenyl phosphate concentration was, thus, monitored by potentiostating the biosensor at -0.2 V vs Ag/AgCl to detect amperometrically the generated quinone. The detection of As(V) was based on its inhibitory effect on AcP activity toward the hydrolysis of phenyl phosphate into phenol. The As(V) can be specifically determined in pH 6.0 acetate buffer without any interferences of As(III) or phosphate, the detection limit being 2 nM or 0.15 ppb after an incubation step for 20 min.
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Affiliation(s)
- Serge Cosnier
- Laboratoire d'Electrochimie Organique et de Photochimie Redox, UMR CNRS 5630, ICMG FR CNRS 2607, Universite Joseph Fourier, Grenoble, France.
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Harrison CR, Sader JA, Lucy CA. Sulfonium and phosphonium, new ion-pairing agents with unique selectivity towards polarizable anions. J Chromatogr A 2006; 1113:123-9. [PMID: 16488425 DOI: 10.1016/j.chroma.2006.01.132] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2005] [Revised: 01/26/2006] [Accepted: 01/31/2006] [Indexed: 11/15/2022]
Abstract
Ion-pair chromatography (IPC) almost universally relies upon ammonium-based ion-pairing agents (IPAs) for anion separations. This work compares tetrabutylammonium (TBA) with tetrabutylphosphonium (TBP) and tributylsulfonium (TBS). To best understand the retention behavior analytes used for characterization of the IPAs spanned the Hofmeister series; from kosmotropic monoanions (iodate, chloride, nitrite) and intermediate anions (nitrate, bromide) to chaotropic ions (perchlorate, thiocyanate, iodide). The studies demonstrate that tetrabutylphosphonium is the most chaotropic IPA, followed by tetrabutylammonium and finally tributylsulfonium is the least chaotropic. In the case of the chaotropic anions, the retention of perchlorate was least with tributylsulfonium, and greatest for tetrabutylphosphonium, with tetrabutylammonium being intermediate. The multivalent kosmotropic anions (sulfate, chromate, thiosulfate) demonstrated unique selectivity changes depending on the kosmotropic/chaotropic nature of the IPA. Demonstrating increases in retention with increasing IPA concentration only with tributylsulfonium, whereas the more chaotropic IPAs universally decreased the retention of the multivalent anions.
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Affiliation(s)
- Christopher R Harrison
- Department of Chemistry, Gunning/Lemieux Chemistry Centre, University of Alberta, Edmonton, Alta., Canada T6G 2G2
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van Elteren JT, Slejkovec Z, Arcon I, Glass HJ. An interdisciplinary physical-chemical approach for characterization of arsenic in a calciner residue dump in Cornwall (UK). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2006; 139:477-88. [PMID: 16102880 DOI: 10.1016/j.envpol.2005.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2005] [Accepted: 06/03/2005] [Indexed: 05/04/2023]
Abstract
During the later stages of hard-rock mining in Cornwall, UK, widespread processing and refining of arsenic in purpose-built calciners resulted in severe, localized contamination of soils with arsenic. Several physical-chemical techniques were applied to characterize arsenic in a calciner residue dump: X-ray powder diffraction (XRD), sequential extraction combined with hyphenated speciation methods, and X-ray absorption spectroscopic (XAS) methods such as XANES (X-ray absorption near-edge structure) and EXAFS (extended X-ray absorption fine structure). Arsenic was predominantly present in pentavalent form, bound to amorphous or poorly-crystalline hydrous oxides of Fe (probably alpha-hematite). A small amount of a non-classified crystalline iron arsenate phase was found, viz. Fe2(As(AsO4)3). There was also evidence for the presence of some arsenate bound to quartz (alpha-SiO2). The overall results make us believe that the normally assumed relative safety, from a mobility point of view, is questionable since only a small fraction of arsenic is found in a crystalline iron arsenate form.
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Affiliation(s)
- Susan D Richardson
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, Athens, Georgia 30605, USA
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Sathrugnan K, Balasubramanian R. Evaluation of a microwave-assisted extraction technique for determination of water-soluble inorganic species in urban airborne particulate matter. Anal Bioanal Chem 2005; 381:1604-8. [PMID: 15827720 DOI: 10.1007/s00216-005-3138-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2004] [Revised: 01/25/2005] [Accepted: 01/31/2005] [Indexed: 10/25/2022]
Abstract
A simple and rapid microwave-assisted extraction (MAE) technique has been developed for the determination of water-soluble inorganic species (cations: Na+, NH4+, K+, Ca2+ and Mg2+ and anions: F-, Cl-, NO3-, PO4(3-) and SO4(2-)) in airborne particulate matter. The analytes were extracted under different treatment conditions such as microwave power and extraction time. They were quantified using ion chromatography. The observed concentrations and recovery yields obtained under different conditions were compared. The results of a comparison between this MAE and sonication using NIST SRM 1648 are also given in this paper. The optimized MAE technique gave results in good agreement with the values obtained by the sonication. For some ions, for example Mg2+ and K+, recovery was low with both techniques. The results demonstrated that the optimized MAE is fast and efficient compared with conventional ultrasonic extraction. Urban airborne particles were collected and subjected to the MAE followed by the IC analysis to determine the relative proportions of different water-soluble inorganic species. These results are briefly discussed.
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Affiliation(s)
- K Sathrugnan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Block E5 4 Engineering Drive 4, Singapore 117576
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Orero Iserte L, Roig-Navarro A, Hernández F. Simultaneous determination of arsenic and selenium species in phosphoric acid extracts of sediment samples by HPLC-ICP-MS. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2004.08.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Richardson SD. Environmental Mass Spectrometry: Emerging Contaminants and Current Issues. Anal Chem 2004; 76:3337-63. [PMID: 15193112 DOI: 10.1021/ac040060d] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Susan D Richardson
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, Athens, Georgia 30605, USA
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