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Robert-Peillard F, El Mouchtari EM, Bonne D, Humbel S, Boudenne JL, Coulomb B. Determination of dissolved nickel in natural waters using a rapid microplate fluorescence assay method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 275:121170. [PMID: 35344856 DOI: 10.1016/j.saa.2022.121170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
A new microplate analytical procedure is described for the determination of nickel (Ni2+) ions in natural water samples. A lophine analogue fluorescent sensor was synthesized and a spectral study showed a selective fluorescence quenching effect of chemical sensor by Ni2+ under optimized conditions. Density functional theory (DFT) calculations confirmed the formation of a Ni(II)L3 complex obtained by the Job plot. The calculations showed that the fluorescence emission peak of L collapses due to the distortion of L in the complex. The simple and fast microplate procedure allowed us to quantify Ni2+ with a linear response from 1.6 to 40 µg L-1 and a quantification limit of 5.4 µg L-1 without the need of a preconcentration step. The optimized procedure using high-throughput microplate assay has been applied for the determination of Ni2+ in natural water samples with good analytical performances.
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Affiliation(s)
| | | | - Damien Bonne
- Aix Marseille Université, CNRS, Centrale Marseille iSm2, Marseille, France
| | - Stéphane Humbel
- Aix Marseille Université, CNRS, Centrale Marseille iSm2, Marseille, France
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Hu J, Zhang X, Liu T, Gao HW, Lu S, Uvdal K, Hu Z. Ratiometric fluorogenic determination of endogenous hypochlorous acid in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 219:232-239. [PMID: 31048252 DOI: 10.1016/j.saa.2019.04.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/11/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
Hypochlorous acid (HClO) is one of the most important ROS (reactive oxygen species) and common pollutant in tap-water. However, the determination of HClO with fast response and high sensitivity/selectivity is still an urgent demanding. Here we fabricated a ratiometric fluorescent probe RC based on TBET (through-bond energy transfer) on the platform of coumarin and rhodamine with the thiosemicarbazide group as the linker. This probe could display the characteristic fluorescence emission of coumarin. Upon addition of HClO, the linker was reacted into an oxadiazole, resulting in the opening of spiro-ring of rhodamine. The resultant then gives ratiometric fluorogenic changes. The probe exhibits fast response and high selectivity and sensitivity towards HClO with a low limit of detection (~140 nM). Eventually, RC is successfully applicated for determining spiked HClO in water samples and imaging endogenous HClO in living cells.
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Affiliation(s)
- Jiwen Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China; Division of Molecular Surface Physics & Nanoscience, Department of Physics, Chemistry and Biology, Linköping University, Linköping 58183, Sweden
| | - Xin Zhang
- Division of Molecular Surface Physics & Nanoscience, Department of Physics, Chemistry and Biology, Linköping University, Linköping 58183, Sweden
| | - Tingting Liu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Hong-Wen Gao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Senlin Lu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China.
| | - Kajsa Uvdal
- Division of Molecular Surface Physics & Nanoscience, Department of Physics, Chemistry and Biology, Linköping University, Linköping 58183, Sweden
| | - Zhangjun Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China; Division of Molecular Surface Physics & Nanoscience, Department of Physics, Chemistry and Biology, Linköping University, Linköping 58183, Sweden.
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Zhao D, Zhang G. Highly sensitive determination of Cu(II) iron in ng/mL level in natural waters using Sulfochlorophenol S. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:72. [PMID: 25647804 DOI: 10.1007/s10661-015-4317-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 01/18/2015] [Indexed: 06/04/2023]
Abstract
The highly sensitive complexation of Cu(II) with Sulfochlorophenol S (SCPS) at pH 4.03 was characterized by the spectral correction technique. This reaction was used to determine the Cu(II) content in various sources by the light-absorption ratio variation approach (LARVA). The limit of detection of Cu(II) was only 1.35 ng/mL, thus facilitating the direct monitoring of natural water. The Cu(II) contents in the Huangpu River, Yangtze River, and Taihu Lake of China were determined with satisfactory results, and the recovery rates of Cu(II) using SCPS were between 94.5 and 102.6 %.
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Affiliation(s)
- Danhua Zhao
- Department of Chemistry, Guangdong University of Education, Guangzhou, 510303, People's Republic of China
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Zhang YL, Pei XM, Liu XH, Gao HW. Light-Absorption Ratio Variation Approach to Sensitive and Selective Determination of Iron with Trimethoxyphenylflurone, Cetylpyridinium, and Thioglycollic Acid. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200500124] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Determination of main components in the extracellular polymeric substances extracted from activated sludge using a spectral probing method. Colloids Surf B Biointerfaces 2012; 94:151-6. [DOI: 10.1016/j.colsurfb.2012.01.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 12/29/2011] [Accepted: 01/22/2012] [Indexed: 11/20/2022]
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Abstract
AbstractThe effects of Cu2+ on the catalytical degradation of acid chrome blue K (ACBK) in UV-TiO2 and H2O2 processes were studied. In these two processes, Cu2+ markedly depressed the catalytical degradation of ACBK by its interaction with ACBK. Through this interaction, the new complex Cu(ACBK)2 formed. The formation of this new complex was favorable to protect some groups in ACBK from the oxidation of reactive oxygen generated in UV-TiO2 and H2O2 processes, and consequently had suppressing effects on degradation of ACBK. In addition, Cu2+ also inhibited the degradation of ACBK in UV-TiO2 process by influencing the adsorption of ACBK on the surface of TiO2 particles.
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Zhao HP, Zhao XT, Bai J, Gao HW. Interaction of Reactive Brilliant Red with Cetylpyridinium and Application to Determination of Cationic Surfactant in Water. J CHIN CHEM SOC-TAIP 2008. [DOI: 10.1002/jccs.200800011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gao HW, Wang CL, Jia JY, Zhang YL. Continuous flow analysis combined with a light-absorption ratio variation approach for determination of copper at ng/ml level in natural water. ANAL SCI 2007; 23:655-9. [PMID: 17575347 DOI: 10.2116/analsci.23.655] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The complexation between Cu(II) and naphthochrome green (NG) is very sensitive at pH 4.09 with the formation of complex ion [Cu(NG)2(H2O)2](2-). It can thus used for the determination of Cu(II) by the light-absorption ratio variation approach (LARVA) with a good selectivity. Both the ordinary detection procedure and continuous flow analysis (CFA) were carried out, where the latter is fit for continuous and rapid analysis of samples. The limit of detection (LOD) of Cu(II) is only 1 ng/ml, which is favorable for direct monitoring of natural water. About 30 samples could be analyzed per hour by CFA. Cu(II) contents in Yangtze River, West Lake, Taihu Lake of China and seawater near Shanghai were determined with satisfactory results. The CFA-LARVA spectrophotometry was the first to be coupled and it will play an important role in the in-situ analysis of natural water quality.
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Affiliation(s)
- Hong-Wen Gao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji Universit, P. R. China.
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Gao HW, Chen FF, Chen L, Zeng T, Pan LT, Li JH, Luo HF. A novel detection approach based on chromophore-decolorizing with free radical and application to photometric determination of copper with acid chrome dark blue. Anal Chim Acta 2007; 587:52-9. [PMID: 17386753 DOI: 10.1016/j.aca.2007.01.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2006] [Revised: 11/08/2006] [Accepted: 01/15/2007] [Indexed: 10/23/2022]
Abstract
A novel detection approach named chromophore-decolorizing with free radicals is developed for determination of trace heavy metal. The hydroxyl radicals (HO) generated from Fe(III) and hydrogen peroxide will oxidize the free chromophore into almost colorless products. The copper-acid chrome dark blue (ACDB) complexation was investigated at pH 5.07. In the presence of Fe(III) and hydrogen peroxide, the excess ACDB was decolorized in the Cu-ACDB reaction solution, and the final solution contained only one color compound, the Cu-ACDB complex. After oxidation of free hydroxyl radicals, the complexation becomes sensitive and selective and it has been used for the quantitation of trace amounts of Cu(II) dissolved in natural water. Beer's law is obeyed in the range from 0 to 0.500 microg mL(-1) Cu(II) and the limit of detection is only 6 microg L(-1) Cu(II). Besides, the Cu-ACDB complex formed was characterized.
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Affiliation(s)
- Hong-Wen Gao
- Key Laboratory of Yangtze Water Environment of Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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Zhao XT, Zhao HP, Le YQ, Zeng T, Gao HW. Determination of Cobalt at ng ml-1 Level in Water Using the Electrophilic Substiution Complexation between Co(II) and Chlorophosphonazo- p-Cl-Cu(II) Complex. ACTA ACUST UNITED AC 2007; 97:251-63. [PMID: 17822232 DOI: 10.1002/adic.200790009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The chromophore chlorophosphonazo-p-Cl (PCCPA) was used to complex Co(II) and Cu(II) at pH 9.18. The formation of Co(PCCPA)2 and Cu(PCCPA)2 complexes were characterized by the spectral correction technique. Co(II) could competitively substitute Cu(II) from the Cu(II)-PCCPA complex via electrophilic effect. With the assistance of the light-absorption ratio variation approach, the electrophilic substitution complexation showed a high selectivity and good sensitivity with 1.9 ng mL(-1) of LOD. The proposed method has been applied to the direct detection of Co(II) in surface water and wastewater with good percent of recovery.
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Affiliation(s)
- Xue-Tao Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
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Liang ZQ, Wang CX, Yang JX, Gao HW, Tian YP, Tao XT, Jiang MH. A highly selective colorimetric chemosensor for detecting the respective amounts of iron(ii) and iron(iii) ions in water. NEW J CHEM 2007. [DOI: 10.1039/b701201m] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gao HW, Zeng T, Pan LT, Chen L, Li ML, Yuan Y. Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone. Mikrochim Acta 2006. [DOI: 10.1007/s00604-006-0677-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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