1
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Ma X, Hu Q, Yuan J, Feng Y, Cheng Z. Glutathione Modified silicon-doped Carbon Quantum dots as a Sensitive Fluorescent Probe for ClO - Detection. J Fluoresc 2024:10.1007/s10895-024-03797-4. [PMID: 38861058 DOI: 10.1007/s10895-024-03797-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 06/06/2024] [Indexed: 06/12/2024]
Abstract
A selective and sensitive fluorescence method for hypochlorite (ClO-) was designed using glutathione (GSH) modified silicon-doped carbon quantum dots (GSH@Si-CDs). Then a dual emission ratio fluorescence probe (RF-probe) was obtained based on carbodiimide-activated coupling reaction between GSH and Si-CDs. i.e., when the excitation wavelength was kept at 360 nm, the GSH@Si-CDs exhibited strong blue and weak yellow fluorescence at 430 and 580 nm. Meanwhile, the fluorescence of GSH@Si-CDs could be selectively quenched at 430 nm and enhanced at 580 nm in the presence of ClO-, and corresponding limit of detection (LOD) and linear range were measured to be 0.35 µM and 1.0-33.3 µM. The sensing mechanism of the system was also investigated in detail. Moreover, the RF-probe with good accuracy was successfully employed to monitor ClO- in real samples with satisfactory results compared to the standard iodometric method.
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Affiliation(s)
- Xue Ma
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, West Normal University, Nanchong, 637002, China
| | - Qingqing Hu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, West Normal University, Nanchong, 637002, China
| | - Jingxue Yuan
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, West Normal University, Nanchong, 637002, China
| | - Yao Feng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, West Normal University, Nanchong, 637002, China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, West Normal University, Nanchong, 637002, China.
- Institute of Applied Chemistry, China West Normal University, Nanchong, 637002, China.
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2
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Chen P, Nie Q, Yan Y, Yang J, Feng HT, Tang BZ. A ratiometric fluorescent probe for rapid and specific detection of hypochlorite. LUMINESCENCE 2024; 39:e4600. [PMID: 37752625 DOI: 10.1002/bio.4600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/08/2023] [Accepted: 09/17/2023] [Indexed: 09/28/2023]
Abstract
Hypochlorite (ClO- ), as a kind of essential reactive oxygen species, plays a crucial role in vitro and in vivo. Here, a ratiometric fluorescent probe (TPAM) was designed and constructed for sensing ClO- based on substituted triphenylamine and malononitrile, which exhibited obvious colour transfer from orange to colourless under daylight accompanied by noticeable fluorescence change from red to green in response to ClO- . TPAM could effectively monitor ClO- with the merits of fast response, excellent selectivity, high sensitivity and a low detection limit of 0.1014 μM. 1 H NMR, mass spectra and theoretical calculations proved that ClO- caused the oxidation of the carbon-carbon double bond in TPAM, resulting in compound 1 and marked changes in colour and fluorescence. In addition, TPAM was utilized for imaging ClO- in living cells successfully with good photostability and biocompatibility.
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Affiliation(s)
- Pu Chen
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Qingli Nie
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Yuting Yan
- College of Chemistry & Materials Science, Northwest University, Xi'an, China
| | - Juncheng Yang
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Hai-Tao Feng
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen, China
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3
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McCarthy WP, Srinivas M, Danaher M, Connor CO, Callaghan TFO, van Sinderen D, Kenny J, Tobin JT. Isolation and identification of chlorate-reducing Hafnia sp. from milk. MICROBIOLOGY (READING, ENGLAND) 2023; 169:001347. [PMID: 37450378 PMCID: PMC10433419 DOI: 10.1099/mic.0.001347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 05/31/2023] [Indexed: 07/18/2023]
Abstract
Chlorate has become a concern in the food and beverage sector, related to chlorine sanitizers in industrial food production and water treatment. It is of particular concern to regulatory bodies due to the negative health effects of chlorate exposure. This study investigated the fate of chlorate in raw milk and isolated bacterial strains of interest responsible for chlorate breakdown. Unpasteurized milk was demonstrated to have a chlorate-reducing capacity, breaking down enriched chlorate to undetectable levels in 11 days. Further enrichment and isolation using conditions specific to chlorate-reducing bacteria successfully isolated three distinct strains of Hafnia paralvei. Chlorate-reducing bacteria were observed to grow in a chlorate-enriched medium with lactate as an electron donor. All isolated strains were demonstrated to reduce chlorate in liquid medium; however, the exact mechanism of chlorate degradation was not definitively identified in this study.
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Affiliation(s)
- William P. McCarthy
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, Dublin 7, Ireland
| | - Meghana Srinivas
- Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Martin Danaher
- Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland
| | - Christine O. Connor
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, Dublin 7, Ireland
| | - Tom F. O. Callaghan
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
| | - Douwe van Sinderen
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - John Kenny
- Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- VistaMilk Science Foundation Ireland Research Centre, Teagasc, Moorepark, Fermoy, Cork, Ireland
| | - John T. Tobin
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- VistaMilk Science Foundation Ireland Research Centre, Teagasc, Moorepark, Fermoy, Cork, Ireland
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4
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McCarthy WP, Blais HN, O'Callaghan TF, Hossain M, Moloney M, Danaher M, O'Connor C, Tobin JT. Application of nanofiltration for the removal of chlorate from skim milk. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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5
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Jackson WA, Brundrett M, Böhlke JK, Hatzinger PB, Mroczkowski SJ, Sturchio NC. Isotopic composition of natural and synthetic chlorate (δ 18O, Δ 17O, δ 37Cl, 36Cl/Cl): Methods and initial results. CHEMOSPHERE 2021; 274:129586. [PMID: 33529957 DOI: 10.1016/j.chemosphere.2021.129586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
Natural chlorate (ClO3-) is widely distributed in terrestrial and extraterrestrial environments. To improve understanding of the origins and distribution of ClO3-, we developed and tested methods to determine the multi-dimensional isotopic compositions (δ18O, Δ17O, δ37Cl, 36Cl/Cl) of ClO3- and then applied the methods to samples of natural nitrate-rich caliche-type salt deposits in the Atacama Desert, Chile, and Death Valley, USA. Tests with reagents and artificial mixed samples indicate stable-isotope ratios were minimally affected by the purification processes. Chlorate extracted from Atacama samples had δ18O = +7.0 to +11.1‰, Δ17O = +5.7 to +6.4‰, δ37Cl = -1.4 to +1.3‰, and 36Cl/Cl = 48 × 10-15 to 104 × 10-15. Chlorate from Death Valley samples had δ18O = -6.9 to +1.6‰, Δ17O = +0.4 to +2.6‰, δ37Cl = +0.8 to +1.0‰, and 36Cl/Cl = 14 × 10-15 to 44 × 10-15. Positive Δ17O values of natural ClO3- indicate that its production involved reaction with O3, while its Cl isotopic composition is consistent with a tropospheric or near-surface source of Cl. The Δ17O and δ18O values of natural ClO3- are positively correlated, as are those of ClO4- and NO3- from the same localities, possibly indicating variation in the relative contributions of O3 as a source of O in the formation of the oxyanions. Additional isotopic analyses of ClO3- could provide stronger constraints on its production mechanisms and/or post-formational alterations, with applications for environmental forensics, global biogeochemical cycling of Cl, and the origins of oxyanions detected on Mars.
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Affiliation(s)
| | | | - J K Böhlke
- U. S. Geological Survey, Reston, VA, 20192, USA
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6
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Yin X, Cui H, Li S, Niu S. Simultaneous determination of chlorite, chlorate, perchlorate and bromate in ozonated saline by using IC-MS. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5916-5921. [PMID: 33290456 DOI: 10.1039/d0ay01903h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A simple, accurate and reliable analytical method for simultaneous determination of chlorite, chlorate, perchlorate and bromate in ozonated saline by using ion chromatography coupled with triple quadrupole mass spectrometry (IC-MS) has been developed. The use of silver (Ag) and hydrogen (H) OnGuard cartridges and 100-fold dilution were found to be simple and effective for sample pretreatment. Under optimized MS parameters, method validation was convincingly confirmed. A good linearity was obtained with regression correlation coefficients (R2) larger than 0.999. The mean relative recoveries of chlorite (ClO2-), chlorate (ClO3-), perchlorate (ClO4-), and bromate (BrO3-) ranged from 79.96 to 97.63%. The obtained limit of detection (LOD) was 1.00 μg L-1 for ClO2-, 0.10 μg L-1 for ClO3-, 0.04 μg L-1 for ClO4-, and 0.50 μg L-1 for BrO3-. Chlorate and bromate were only detected in ozonated samples. In addition, the concentration of chlorate and bromate was in direct proportion to the amount of ozone in saline.
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Affiliation(s)
- Xiuzhen Yin
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China.
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7
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Huang B, Rohrer J. Targeted Quantitation Mode Comparison of Haloacetic Acids, Bromate, and Dalapon in Drinking Water Using Ion Chromatography Coupled to High-Resolution (Orbitrap) Mass Spectrometry. J Chromatogr A 2020; 1630:461538. [PMID: 32992219 DOI: 10.1016/j.chroma.2020.461538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/19/2020] [Accepted: 09/13/2020] [Indexed: 11/24/2022]
Abstract
A highly selective, sensitive, and simple analytical method for identification and quantification of nine haloacetic acids, bromate, and dalapon has been developed. This method uses ion chromatography (IC) coupled with electrospray ionization-high-resolution mass spectrometry (IC-ESI-HRMS) to directly analyze water samples on a high capacity anion-exchange column, eliminating the need for sample pretreatment/derivatization. Our study compared the following three types of targeted quantitation experiments using a quadrupole-orbitrap hybrid mass spectrometer, full-scan MS with data-dependent tandem mass spectrometry (full MS/dd-MS2 with inclusion list), targeted selected ion monitoring (SIM) with data-dependent tandem mass spectrometry (t-SIM/dd-MS2), and parallel reaction monitoring (PRM). Sensitivity, linearity, accuracy, and precision were validated following the guidelines of U.S. EPA Method 557. Single laboratory lowest concentration minimum reporting levels (LCMRLs) for the analytes using three different acquisition modes ranged from 0.0011 to 0.18 μg/L. All three quantitation modes showed good linearity for the eleven analytes with coefficients of determination of 0.9981- 0.9993. This IC-ESI-HRMS method was successfully applied to the analysis of commercial bottled water, tap water from San Francisco Bay Area, and the same tap water that has been through a filtered drinking water faucet. Both t-SIM/dd-MS2 and PRM modes were sensitive to confirm the trace-level presence of all nine HAAs, bromate, and dalapon in the tap water sample. Full-scan HRMS data acquisition provided the benefits of simultaneous data collection for both targeted and non-targeted components, and thus, suitability for simultaneous quantification of an unlimited number of compounds. Data-dependent MS/MS (dd-MS2) product-ion spectra were used for confirmation. All three modes showed good quantitative performance and obtained similar values. Single laboratory precision and accuracy data are presented for three water matrices: reagent water, laboratory synthetic sample matrix (LSSM), and tap water. Single laboratory precision was 0.078- 8.04%, and accuracy was in the range 70-130% for the three MS modes.
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Affiliation(s)
- Beibei Huang
- Thermo Fisher Scientific, 1214 Oakmead Parkway, Sunnyvale, CA 94085, United States.
| | - Jeffrey Rohrer
- Thermo Fisher Scientific, 1214 Oakmead Parkway, Sunnyvale, CA 94085, United States
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8
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Wang C, Chen H, Zhu L, Liu X, Lu C. Accurate, sensitive and rapid determination of perchlorate in tea by hydrophilic interaction chromatography-tandem mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3592-3599. [PMID: 32701081 DOI: 10.1039/d0ay00811g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Perchlorate is an environmental contaminant interrupting thyroid hormone production, and perchlorate in tea has raised wide concern recently. In this study, an accurate method was developed for the determination of perchlorate in tea using hydrophilic interaction chromatography-tandem mass spectrometry and a simplified QuEChERS procedure. The method utilized a zwitterion HILIC column for separation, and the optimal gradient eluents consisted of acetonitrile and aqueous solution with 0.1% formic acid and 20 mmol L-1 ammonium formate. Calibration curves were fitted by the quadratic model with 1/x weight instead of the linear model. As perchlorate was only partially extractable when using acetonitrile or methanol as the extraction solvent, acetonitrile/water (1 : 1, v/v) was chosen to extract perchlorate from tea samples. Graphitized carbon black was used as the dispersive solid phase extraction sorbent to clean up tea extracts. The method exhibited satisfactory accuracy with recoveries of 81.4-100.9% and relative standard deviations of 1.3-14.5% for green and black teas. The limit of quantitation was 0.005 mg kg-1, while the limits of detection were 0.0011 mg kg-1 for green tea and 0.0013 mg kg-1 for black tea, indicating an excellent sensitivity of this method. A 100% positive rate of perchlorate was found in 100 real tea samples, and the concentrations ranged from 0.0030 mg kg-1 to 0.78 mg kg-1. This accurate, sensitive and rapid method would be suitable for monitoring, risk assessment and source identification of perchlorate in tea.
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Affiliation(s)
- Chen Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China.
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9
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Constantinou P, Louca-Christodoulou D, Agapiou A. LC-ESI-MS/MS determination of oxyhalides (chlorate, perchlorate and bromate) in food and water samples, and chlorate on household water treatment devices along with perchlorate in plants. CHEMOSPHERE 2019; 235:757-766. [PMID: 31280044 DOI: 10.1016/j.chemosphere.2019.06.180] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/14/2019] [Accepted: 06/23/2019] [Indexed: 06/09/2023]
Abstract
The results of the validation study of the LC-ESI-MS/MS method for the determination of chlorate (ClO3-), perchlorate (ClO4-) and bromate (BrO3-) in water and food samples are summarized. Towards this, 284 samples of drinking water were analysed, out of which the 69% contained chlorate above the limit of quantitation (LOQ) of 0.01 mg/L, with maximum amount of 1.1 mg/L. Only 6 samples were found to be positive with perchlorate at levels <0.01 mg/L. Bromate was detected in 5 drinking water samples at levels above the LOQ, at concentrations up to 0.026 mg/L. For the validation of the method in food, 108 blank samples were spiked with chlorate and perchlorate for the LC-MS/MS analysis at two levels. In total 247 food samples from the market of 19 different commodities including fruits, vegetables, cereals and wine, were analysed. The maximum concentration of chlorate was found at 0.83 mg/kg in a sample of cultivated mushrooms. The number of samples contaminated with perchlorate was also small, with all the determined concentrations below the LOQ of 0.05 mg/kg. Experiments for the chlorate reduction in drinking water, showed that reverse osmosis treatment is effective in particular with newly installed cartridges. Finally, according to the results of the pilot study when chlorinated water is used for the plant irrigation, accumulation of chlorate is observed, especially in the green parts of the plant. Perchlorate was also detected in leafy samples, although it was not present in the irrigation water.
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Affiliation(s)
- Panayiotis Constantinou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678, Nicosia, Cyprus; State General Laboratory, Pesticide Residues Laboratory, Nicosia, Cyprus
| | | | - Agapios Agapiou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678, Nicosia, Cyprus.
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10
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Wang J, Wang G, Chen M, Wang Y, Ding G, Zhang Y, Kang Y, Pan X. An integrated microfluidic chip for treatment and detection of microalgae cells. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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12
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McCarthy WP, O'Callaghan TF, Danahar M, Gleeson D, O'Connor C, Fenelon MA, Tobin JT. Chlorate and Other Oxychlorine Contaminants Within the Dairy Supply Chain. Compr Rev Food Sci Food Saf 2018; 17:1561-1575. [DOI: 10.1111/1541-4337.12393] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/27/2022]
Affiliation(s)
- William P. McCarthy
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
- Dublin Inst. of Technology; Cathal Brugha Street, Dublin 1 Dublin Ireland
| | - Tom F. O'Callaghan
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
| | - Martin Danahar
- Food Safety Dept.; Ashtown Food Research Centre; Teagasc, Ashtown, Dublin 15 Dublin Ireland
| | - David Gleeson
- Teagasc; Animal & Grassland Research and Innovation Centre, Moorepark; Fermoy Co. Cork, Cork Ireland
| | - Christine O'Connor
- Dublin Inst. of Technology; Cathal Brugha Street, Dublin 1 Dublin Ireland
| | - Mark A. Fenelon
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
| | - John T. Tobin
- Food Chemistry & Technology Dept.; Teagasc Food Research Centre, Moorepark; Fermoy, Co. Cork Cork Ireland
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13
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Xing P, Zhang Z, Niu Y, Qi Y, Dong L, Wang C. Water solubility is essential for fluorescent probes to image hypochlorous acid in live cells. Chem Commun (Camb) 2018; 54:9889-9892. [DOI: 10.1039/c8cc04631j] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Our findings, for the first time, highlight the importance of water-solubility of fluorescent probes for HClO imaging.
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Affiliation(s)
- Panfei Xing
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macau SAR
| | - Zhe Zhang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macau SAR
| | - Yiming Niu
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macau SAR
| | - Yaning Qi
- Choi Kai Yau College
- University of Macau
- Macau SAR
| | - Lei Dong
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University Institution
- Nanjing
- China
| | - Chunming Wang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macau SAR
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14
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Boal AK, Patsalis FI. Use of Sodium Thiosulfate to Quench Hypochlorite Solutions Prior to Chlorate Analysis. ACTA ACUST UNITED AC 2017. [DOI: 10.5942/jawwa.2017.109.0097] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Krishnan U, Saji S, Clarkson R, Lalloo R, Moule AJ. Free Active Chlorine in Sodium Hypochlorite Solutions Admixed with Octenidine, SmearOFF, Chlorhexidine, and EDTA. J Endod 2017; 43:1354-1359. [DOI: 10.1016/j.joen.2017.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/14/2017] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
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16
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Topcu C. Highly selective direct determination of chlorate ions by using a newly developed potentiometric electrode based on modified smectite. Talanta 2016; 161:623-631. [DOI: 10.1016/j.talanta.2016.09.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/01/2016] [Accepted: 09/05/2016] [Indexed: 10/21/2022]
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17
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Leonardo NGES, Carlotto IB, Luisi SB, Kopper PMP, Grecca FS, Montagner F. Calcium Hypochlorite Solutions: Evaluation of Surface Tension and Effect of Different Storage Conditions and Time Periods over pH and Available Chlorine Content. J Endod 2016; 42:641-5. [DOI: 10.1016/j.joen.2016.01.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/11/2016] [Accepted: 01/12/2016] [Indexed: 11/27/2022]
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18
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The Effect of Surfactants on the Stability of Sodium Hypochlorite Preparations. J Endod 2015; 41:1344-8. [DOI: 10.1016/j.joen.2015.03.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 03/16/2015] [Accepted: 03/16/2015] [Indexed: 11/20/2022]
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19
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West DM, Mu R, Gamagedara S, Ma Y, Adams C, Eichholz T, Burken JG, Shi H. Simultaneous detection of perchlorate and bromate using rapid high-performance ion exchange chromatography-tandem mass spectrometry and perchlorate removal in drinking water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:8594-602. [PMID: 25561263 DOI: 10.1007/s11356-014-4028-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Accepted: 12/18/2014] [Indexed: 05/08/2023]
Abstract
Perchlorate and bromate occurrence in drinking water causes health concerns due to their effects on thyroid function and carcinogenicity, respectively. The purpose of this study was threefold: (1) to advance a sensitive method for simultaneous rapid detection of perchlorate and bromate in drinking water system, (2) to systematically study the occurrence of these two contaminants in Missouri drinking water treatment systems, and (3) to examine effective sorbents for minimizing perchlorate in drinking water. A rapid high-performance ion exchange chromatography-tandem mass spectrometry (HPIC-MS/MS) method was advanced for simultaneous detection of perchlorate and bromate in drinking water. The HPIC-MS/MS method was rapid, required no preconcentration of the water samples, and had detection limits for perchlorate and bromate of 0.04 and 0.01 μg/L, respectively. The method was applied to determine perchlorate and bromate concentrations in total of 23 selected Missouri drinking water treatment systems during differing seasons. The water systems selected include different source waters: groundwater, lake water, river water, and groundwater influenced by surface water. The concentrations of perchlorate and bromate were lower than or near to method detection limits in most of the drinking water samples monitored. The removal of perchlorate by various adsorbents was studied. A cationic organoclay (TC-99) exhibited effective removal of perchlorate from drinking water matrices.
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Affiliation(s)
- Danielle M West
- Department of Chemistry, Missouri University of Science and Technology, 400 West 11th Street, Rolla, MO, 65409, USA
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20
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21
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Nayanova EV, Elipasheva EV, Sergeev GM. Photometric redox determination of bromate ions in drinking water. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815020136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Clarkson RM, Smith TK, Kidd BA, Evans GE, Moule AJ. Assessment of residual active chlorine in sodium hypochlorite solutions after dissolution of porcine incisor pulpal tissue. Aust Dent J 2013; 58:428-33. [DOI: 10.1111/adj.12115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 02/22/2013] [Accepted: 03/13/2013] [Indexed: 11/30/2022]
Affiliation(s)
- R M Clarkson
- School of Dentistry, The University of Queensland
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23
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Guo Y, Xu F, Meng L, Tang W, Xia Y, Wu Y, Zhang S. Preparation and application of trimethylamine amination polychloromethyl styrene nanolatex coated capillary column for the determination of bromate by field-amplified sample stacking open-tubular capillary electrochromatography. Electrophoresis 2013; 34:1312-8. [DOI: 10.1002/elps.201200541] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 02/02/2013] [Accepted: 02/02/2013] [Indexed: 11/12/2022]
Affiliation(s)
- Yaxiao Guo
- Chemistry Department; Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou; P. R. China
| | - Feifei Xu
- Chemistry Department; Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou; P. R. China
| | - Lei Meng
- Chemistry Department; Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou; P. R. China
| | - Wei Tang
- Chemistry Department; Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou; P. R. China
| | - Yan Xia
- School of Chemistry; Nankai University; Tianjin; P. R. China
| | - Yangjie Wu
- Chemistry Department; Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou; P. R. China
| | - Shusheng Zhang
- Chemistry Department; Key Laboratory of Chemical Biology and Organic Chemistry of Henan; Zhengzhou University; Zhengzhou; P. R. China
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24
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Stanford BD, Pisarenko AN, Dryer DJ, Zeigler-Holady JC, Gamage S, Quiñones O, Vanderford BJ, Dickenson ER. Chlorate, perchlorate, and bromate in onsite-generated hypochlorite systems. ACTA ACUST UNITED AC 2013. [DOI: 10.5942/jawwa.2013.105.0014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Aleksey N. Pisarenko
- Southern Nevada Water Authority, Water Quality Laboratory and Applied Research and Development Center; Las Vegas Nev
| | | | - Janie C. Zeigler-Holady
- Southern Nevada Water Authority, Water Quality Laboratory and Applied Research and Development Center; Las Vegas Nev
| | - Sujanie Gamage
- Southern Nevada Water Authority, Water Quality Laboratory and Applied Research and Development Center; Las Vegas Nev
| | - Oscar Quiñones
- Southern Nevada Water Authority, Water Quality Laboratory and Applied Research and Development Center; Las Vegas Nev
| | - Brett J. Vanderford
- Southern Nevada Water Authority, Water Quality Laboratory and Applied Research and Development Center; Las Vegas Nev
| | - Eric R.V. Dickenson
- Southern Nevada Water Authority, Water Quality Laboratory and Applied Research and Development Center; Las Vegas Nev
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25
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Yokota A, Kubota H, Komiya S, Sato K, Akiyama H, Koshiishi I. Sensitive and simple determination of bromate in foods disinfected with hypochlorite reagents using high performance liquid chromatography with post-column derivatization. J Chromatogr A 2012; 1262:219-22. [DOI: 10.1016/j.chroma.2012.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 09/04/2012] [Accepted: 09/04/2012] [Indexed: 10/27/2022]
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26
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Wang N, He S, Zhu Y. Low-level bromate analysis by ion chromatography on a polymethacrylate-based monolithic column followed by a post-column reaction. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1800-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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ARANDA-RODRIGUEZ R, JIN Z, ZHU J, FENG YL. Application of Pressure-assisted Electrokinetic Injection–Tandem Mass Spectrometry in the Determination of Perchlorate in Water and Soil Samples. ANAL SCI 2012; 28:231-6. [DOI: 10.2116/analsci.28.231] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Rocio ARANDA-RODRIGUEZ
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Health Canada
| | - Zhiyun JIN
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Health Canada
| | - Jiping ZHU
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Health Canada
| | - Yong-Lai FENG
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Health Canada
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28
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Pisarenko AN, Young R, Quiñones O, Vanderford BJ, Mawhinney DB. Two New Methods of Synthesis for the Perbromate Ion: Chemistry and Determination by LC-MS/MS. Inorg Chem 2011; 50:8691-3. [DOI: 10.1021/ic201329q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aleksey N. Pisarenko
- Southern Nevada Water Authority, Applied Research & Development Center, P.O. Box 99954, Las Vegas, Nevada 89193, United States
| | - Robert Young
- Southern Nevada Water Authority, Applied Research & Development Center, P.O. Box 99954, Las Vegas, Nevada 89193, United States
- Department of Soil & Crop Sciences, Colorado State University, Fort Collins, Colorado 80523-1170, United States
| | - Oscar Quiñones
- Southern Nevada Water Authority, Applied Research & Development Center, P.O. Box 99954, Las Vegas, Nevada 89193, United States
| | - Brett J. Vanderford
- Southern Nevada Water Authority, Applied Research & Development Center, P.O. Box 99954, Las Vegas, Nevada 89193, United States
| | - Douglas B. Mawhinney
- Southern Nevada Water Authority, Applied Research & Development Center, P.O. Box 99954, Las Vegas, Nevada 89193, United States
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29
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Stanford BD, Pisarenko AN, Snyder SA, Gordon G. Perchlorate, bromate, and chlorate in hypochlorite solutions: Guidelines for utilities. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/j.1551-8833.2011.tb11474.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Michalski R, Jabłonska M, Szopa S, Łyko A. Application of Ion Chromatography with ICP-MS or MS Detection to the Determination of Selected Halides and Metal/Metalloids Species. Crit Rev Anal Chem 2011. [DOI: 10.1080/10408347.2011.559438] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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KOSAKA K, ASAMI M, TAKEI K, AKIBA M. Analysis of Bromate in Drinking Water Using Liquid Chromatography-Tandem Mass Spectrometry without Sample Pretreatment. ANAL SCI 2011; 27:1091-5. [DOI: 10.2116/analsci.27.1091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Koji KOSAKA
- Water Management Section, Department of Environmental Health, National Institute of Public Health
| | - Mari ASAMI
- Water Management Section, Department of Environmental Health, National Institute of Public Health
| | - Kanako TAKEI
- Water Management Section, Department of Environmental Health, National Institute of Public Health
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32
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Balaji Rao BR, Hatzinger PB, Böhlke JK, Sturchio NC, Andraski BJ, Eckardt FD, Jackson WA. Natural chlorate in the environment: application of a new IC-ESI/MS/MS method with a Cl¹⁸O₃-internal standard. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:8429-8434. [PMID: 20968289 DOI: 10.1021/es1024228] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A new ion chromatography electrospray tandem mass spectrometry (IC-ESI/MS/MS) method has been developed for quantification and confirmation of chlorate (ClO₃⁻) in environmental samples. The method involves the electrochemical generation of isotopically labeled chlorate internal standard (Cl¹⁸O₃⁻) using ¹⁸O water (H₂¹⁸O) he standard was added to all samples prior to analysis thereby minimizing the matrix effects that are associated with common ions without the need for expensive sample pretreatments. The method detection limit (MDL) for ClO₃⁻ was 2 ng L⁻¹ for a 1 mL volume sample injection. The proposed method was successfully applied to analyze ClO₃⁻ in difficult environmental samples including soil and plant leachates. The IC-ESI/MS/MS method described here was also compared to established EPA method 317.0 for ClO₃⁻ analysis. Samples collected from a variety of environments previously shown to contain natural perchlorate (ClO₄⁻) occurrence were analyzed using the proposed method and ClO₃⁻ was found to co-occur with ClO₄⁻ at concentrations ranging from < 2 ng L⁻¹ in precipitation from Texas and Puerto Rico to >500 mg kg⁻¹ in caliche salt deposits from the Atacama Desert in Chile. Relatively low concentrations of ClO₃⁻ in some natural groundwater samples (0.1 µg L⁻¹) analyzed in this work may indicate lower stability when compared to ClO₄⁻ in the subsurface. The high concentrations ClO₃⁻ in caliches and soils (3-6 orders of magnitude greater) as compared to precipitation samples indicate that ClO₃⁻, like ClO₄⁻, may be atmospherically produced and deposited, then concentrated in dry soils, and is possibly a minor component in the biogeochemical cycle of chlorine.
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Affiliation(s)
- Balaji Rao Balaji Rao
- Department of Civil and Environmental Engineering, Texas Tech University, Lubbock, Texas 79409-1023, USA
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