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Laosuwan M, Poonsawat C, Burakham R, Srijaranai S, Mukdasai S. A novel liquid colorimetric probe for highly selective and sensitive detection of lead (II). Food Chem 2021; 363:130254. [PMID: 34120039 DOI: 10.1016/j.foodchem.2021.130254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 05/06/2021] [Accepted: 05/29/2021] [Indexed: 01/10/2023]
Abstract
A novel liquid colorimetric sensor based on deep eutectic solvent (DES) was developed for the preconcentration and detection of Pb2+ in fruit juice, milk and cereal samples. The colorimetric probe was simply fabricated by adding dithizone (DZ) into DES, prepared from choline chloride and phenol. Pb2+ was formed complex with DZ in the probe, providing hydrophobic complex of [Pb-DZ] which was simultaneously extracted into DES and the color was changed from light orange to carmine red. The enriched [Pb-DZ] in DES was detected using spectrophotometer at 520 nm and naked-eyes. In addition, a smartphone in combination with an Image J program was used as an alternative detection device. Under optimal conditions, the enrichment factor was 92 with LOD of 2.1 µg L-1 and the linear range was 0.007-0.075 mg L-1. The proposed liquid colorimetric sensor was successfully applied for Pb2+ detection in various food samples and the results were in good agreement with those obtained by FAAS. The advantages of this method are simple, rapid, environmental friendly and low cost.
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Affiliation(s)
- Melasinee Laosuwan
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Choosak Poonsawat
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Rodjana Burakham
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Supalax Srijaranai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Siriboon Mukdasai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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Charoensuk J, Thonglao J, Wichaiyo B, Mukdasai K, Santaladchaiyakit Y, Srijaranai S, Mukdasai S. A simple and sensitive colorimetric sensor for cadmium (II) detection based on self-assembled trimethyl tetradecyl ammonium bromide and murexide on colloidal silica. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105666] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Lin X, Xuan D, Li F, Liu C, Fan P, Xiao F, Liang H, Yang S. DNA-AgNCs as a fluorescence turn-off probe for dual functional detection of H 2O 2 and Fe(II) ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117894. [PMID: 31865100 DOI: 10.1016/j.saa.2019.117894] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/02/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
A novel fluorescence probe (DNA-AgNCs) was synthesized for dually detecting hydrogen peroxide (H2O2) and ferrous ion (Fe(II)) in water samples. The assay is carried out through a dramatic "turn-off" fluorescence response of AgNCs by hydroxyl radical (OH), which is produced when H2O2 and Fe(II) are present simultaneously. Under the optimal conditions, the degree of fluorescence quenching of the DNA-AgNCs at 525 nm is linearly related to the concentration of H2O2 in the range of 0.3 to 450 pM, and Fe(II) in the range of 0.2 to 6.0 μM. The limit of detection (LOD) of H2O2 and Fe(II) are as low as 99 fM and 60 nM, respectively. Moreover, this method has the advantages of good specificity, high sensitivity, and can be successfully applied for detecting H2O2 and Fe(II) in the real water samples.
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Affiliation(s)
- Xi Lin
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China; Jiading Center for Disease Control and Prevention, Shanghai 201800, China
| | - Dongliang Xuan
- Jiading Center for Disease Control and Prevention, Shanghai 201800, China
| | - Feifei Li
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China
| | - Can Liu
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China
| | - Pengfei Fan
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China
| | - Fubin Xiao
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China
| | - Hao Liang
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China
| | - Shengyuan Yang
- College of Public Health, University of South China, Hengyang 421001, People's Republic of China; Key Laboratory of Hengyang for Health Hazard Factors Inspection and Quarantine, Hengyang 421001, People's Republic of China.
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In-situ fabrication of reduced graphene oxide/leucomethylene blue/platinum nanoparticles modified electrode for voltammetric determination of trace Fe(II) in seawater. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Asgari S, Bagheri H, Es-haghi A. Imprinted silica nanofiber formation via sol–gel-electrospinning for selective micro solid phase extraction. NEW J CHEM 2018. [DOI: 10.1039/c8nj01818a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular imprinted silica nanofibers were implemented for atrazine recognition via an on-line micro-SPE-HPLC set up.
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Affiliation(s)
- Sara Asgari
- Environmental and Bio-Analytical Laboratories
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
| | - Habib Bagheri
- Environmental and Bio-Analytical Laboratories
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
| | - Ali Es-haghi
- Department of Physico Chemistry
- Razi Vaccine & Serum Research Institute
- Agricultural Research, Education and Extension Organization (AREEO)
- Karaj
- Iran
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