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Jiang C, Chen J, Tang J, Xiao J, Xu F, Luo H, Huang K, Zou Z. A portable/miniaturized analytical kit for on-site analysis: Chemical vapor generation-visual colorimetric and smartphone RGB dual-mode for detection of sulfide ion in water and food additives. Food Chem 2024; 444:138532. [PMID: 38330600 DOI: 10.1016/j.foodchem.2024.138532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/30/2023] [Accepted: 01/20/2024] [Indexed: 02/10/2024]
Abstract
Chemical vapor generation (CVG) was used as a gaseous sample introduction technique for the visual/smartphone RGB readout colorimetric system, with the advantages of efficient matrix elimination and high vapor generation efficiency, this analytical system exhibits a good selectivity and sensitivity. Sulfide ion (S2-) in solution was transformed to its volatile form (H2S), the generated H2S reacted with a silver-containing metal organic framework (Ag-BTC) selectively, Ag2S was thus generated. Ag-BTC (fabricated on paper sheet) changed from white to dark brown, the color variance was identified by smartphone and naked-eye simultaneously. Under the optimized conditions, a limit of detection of 0.02 μg/mL was obtained by naked-eye. Several water samples and commercial food additives were analyzed for confirming its accuracy and potential application for on-site detection, recoveries ranging 94-110 % were obtained. To meet the demand of on-site analysis of S2-, this colorimetric system was integrated in a portable/miniaturized analytical kit. It is an easy-used, affordable and portable analytical kit for S2- detection in field.
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Affiliation(s)
- Chenxi Jiang
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Jihong Chen
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Jiayuan Tang
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Jing Xiao
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Fengzhou Xu
- Fujian Provincial Key Laboratory of Ecology-toxicological Effects & Control for Emerging Contaminants, College of Environmental and Biological Engineering, Putian University, Putian, Fujian 351100, China
| | - Hong Luo
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Ke Huang
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Zhirong Zou
- Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China; Fujian Provincial Key Laboratory of Ecology-toxicological Effects & Control for Emerging Contaminants, College of Environmental and Biological Engineering, Putian University, Putian, Fujian 351100, China.
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Gebremedhin KH, Kahsay MH, Wegahita NK, Teklu T, Berhe BA, Gebru AG, Tesfay AH, Asgedom AG. Nanomaterial-based optical colorimetric sensors for rapid monitoring of inorganic arsenic species: a review. DISCOVER NANO 2024; 19:38. [PMID: 38421536 PMCID: PMC10904709 DOI: 10.1186/s11671-024-03981-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
Health concerns about the toxicity of arsenic compounds have therefore encouraged the development of new analytical tools for quick monitoring of arsenic in real samples with improved sensitivity, selectivity, and reliability. An overview of advanced optical colorimetric sensor techniques for real-time monitoring of inorganic arsenic species in the environment is given in this review paper. Herein, several advanced optical colorimetric sensor techniques for arsenite (As+3) and arsenate (As+5) based on doping chromogenic dyes/reagents, biomolecule-modified nanomaterials, and arsenic-binding ligand tethered nanomaterials are introduced and discussed. This review also highlights the benefits and limitations of the colorimetric sensor for arsenic species. Finally, prospects and future developments of an optical colorimetric sensor for arsenic species are also proposed. For future study in this sector, particularly for field application, authors recommend this review paper will be helpful for readers to understand the design principles and their corresponding sensing mechanisms of various arsenic optical colorimetric sensors.
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Affiliation(s)
- Kalayou Hiluf Gebremedhin
- Department of Chemistry, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia.
| | - Mebrahtu Hagos Kahsay
- Department of Chemistry, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Nigus Kebede Wegahita
- Department of Environmental Science, School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Tesfamariam Teklu
- Department of Chemistry, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Berihu Abadi Berhe
- School of Earth Science, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Asfaw Gebretsadik Gebru
- Department of Chemistry, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Amanuel Hadera Tesfay
- Department of Chemistry, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Abraha Geberekidan Asgedom
- Department of Chemistry, College of Natural and Computational Science, Mekelle University, Mekelle, Tigray, Ethiopia
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Zou Z, Ye S, Xiao J, Jiang C, Zhang S, Tan C, Xiong X, Huang K. Ag-containing metal organic framework reacted with AsH 3: Mechanism and application for inorganic arsenic detection by hydride generation-smartphone RGB readout colorimetric system. Food Chem 2023; 428:136806. [PMID: 37450952 DOI: 10.1016/j.foodchem.2023.136806] [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: 02/15/2023] [Revised: 06/26/2023] [Accepted: 07/02/2023] [Indexed: 07/18/2023]
Abstract
The reaction mechanism of Ag-containing metal organic framework (Ag-BTC) and hydrogen arsenide (AsH3) was discussed in detail in this work. Silver ions in Ag-BTC were reacted with AsH3, and silver nanoparticles were generated on the surface of Ag-BTC, causing its color changed. This property was further applied to a hydride generation-colorimetric analytical system. As(III) was converted to AsH3via hydride generation and then reacted with the Ag-BTC (immobilized on test paper), leading to the test paper changed from white to black. Visual colorimetric and smartphone RGB readout mode were used for this analytical system. The results could be readout by naked-eye in visual colorimetric mode and a smartphone in RGB readout mode. Under the optimized conditions, As(III) concentration as low as 10 μg/L and 50 μg/L could be readout by smartphone and naked-eye, respectively. This method was further successful applied to As(III) determination in real samples (drinking water samples and scented tea samples), with recoveries of 91-113%.
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Affiliation(s)
- Zhirong Zou
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China; Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan 644000, China.
| | - Shuang Ye
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Jing Xiao
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Chenxi Jiang
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Shu Zhang
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Chao Tan
- Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan 644000, China
| | - Xiaoli Xiong
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China
| | - Ke Huang
- College of Chemistry and Material Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, Sichuan 610068, China.
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Krishna MVB, Thangavel S, Sunitha Y. A blue arsenomolybdic acid-crystal violet ion-associate pair paving the way for the field detection of arsenic in groundwater. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3539-3551. [PMID: 36018243 DOI: 10.1039/d2ay00608a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A simple visual colorimetric method based on arsenomolybdic acid-crystal violet ion-associate pair formation is described for the detection of As in groundwater at about 10, 25 and 50 μg L-1 levels. The pair exhibits light green coloration at ≤5 μg L-1 and blue colorations of distinctly different intensities at about 10, 25 and 50 μg L-1 concentrations of arsenic. High sensitivity is achieved by the preconcentration of As that entails simultaneous sorption of both As(III) and As(V) from groundwater on covellite (CuS) and, later, their elution as As(V), which subsequently participates in the formation of arsenomolybdic acid. The interference in the color development from PO43-ions that are as efficiently sorbed on CuS and eluted as the oxyanions of As is eliminated by their selective removal by Ce4+ ions under basic (pH ∼ 8.5) conditions. The removal is caused by the formation of cerium phosphate and its co-precipitation with calcium hydroxide. SiO42- ions do not interfere in the process as they are not sorbed by CuS. Groundwater containing ≤0.5 mg L-1 P and ≥200 mg L-1 total dissolved solid can be conveniently analysed by the method. The direct sensing of As(III) as well as As(V), the use of benign and easily available chemicals, the absence of any hazardous by-product, undiminished applicability in sunlight, the testing procedure lasting only for about 30 min, and rapidity are the major advantages of the method. Thus, the method is potentially well-suited for the on-site testing of groundwater potability under different regulations.
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Affiliation(s)
- M V Balarama Krishna
- National Centre for Compositional Characterization of Materials, Bhabha Atomic Research Centre, Hyderabad-500062, India.
| | - S Thangavel
- National Centre for Compositional Characterization of Materials, Bhabha Atomic Research Centre, Hyderabad-500062, India.
| | - Y Sunitha
- National Centre for Compositional Characterization of Materials, Bhabha Atomic Research Centre, Hyderabad-500062, India.
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