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Determination of Ultra-Trace Amounts of Copper in Environmental Water Samples by Dispersive Liquid-Liquid Microextraction Combined with Graphite Furnace Atomic Absorption Spectrometry. SEPARATIONS 2023. [DOI: 10.3390/separations10020093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
A new method of dispersive liquid-liquid microextraction (DLLME) combined with graphite furnace atomic absorption spectrometry (GFAAS) was proposed for the determination of ultra-trace copper. It was based on the reaction of Cu(II) with the laboratory-prepared chelating agent 2-(5-bromo-2-pyridylazo)-5-dimethylaminoaniline (5-Br-PADMA) in a HAc-NaAc buffer solution at pH 5.0 to form stable hydrophobic chelates, which were separated and enriched by DLLME with chlorobenzene (C6H5Cl) and acetonitrile (CH3CN) as extraction and disperser solvents, respectively. The sedimented phase containing the chelates was then determined with GFAAS. Various operating variables that may be affected by the extraction process such as the pH of the solution, the concentration of the chelating agent 5-Br-PADMA, the types and volumes of extraction and disperser solvents, the extraction time, and the centrifugation time were investigated. Under optimum conditions, the calibration curve was linear in the range from 0.02 ng/mL to 0.16 ng/mL of copper with a correlation coefficient of r = 0.9961, and the detection limit was 0.01 ng/mL based on 3Sb. The relative standard deviation for six replicate measurements of 0.05 ng /mL of copper was 3.9%. An enrichment factor (EF) of 110 was obtained. The method has the advantages of low detection limit, high sensitivity, simple operation, less consumption of organic solvents, higher enrichment factor, and environmental friendliness and was applied to the determination of trace copper in environmental water samples with satisfactory results.
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Racheva PV, Milcheva NP, Genc F, Gavazov KB. A centrifuge-less cloud point extraction-spectrophotometric determination of copper(II) using 6-hexyl-4-(2-thiazolylazo)resorcinol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 262:120106. [PMID: 34214740 DOI: 10.1016/j.saa.2021.120106] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/11/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
A simple, cheap, and environmentally friendly centrifuge-less cloud point extraction procedure was developed for the preconcentration of traces of Cu(II) before its spectrophotometric determination. It is based on a complexation reaction with the hydrophobic azo reagent 6-hexyl-4-(2-thiazolylazo)resorcinol (HTAR), in which a complex with a stoichiometric ratio of 1:1 and an absorption maximum at 535 nm is formed. The experimental conditions for Cu(II) determination were found: HTAR concentration (8 × 10-6 mol mL-1), mass fraction of the surfactant Triton X-114 (2.2%), pH (5.9, ammonium acetate buffer), and incubation time (10 min at 60 °C). The linear range, limit of detection, molar absorption coefficient and preconcentration factor were calculated to be 4.5-254 ng mL-1, 1.34 ng mL-1, 2.54 × 105 L mol-1 cm-1, and 10, respectively. The effect of foreign ions was studied, and the proposed procedure was applied to the analysis of water samples and a saline solution for intravenous infusion.
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Affiliation(s)
- Petya V Racheva
- Medical University of Plovdiv, Faculty of Pharmacy, Department of Chemical Sciences, 120 Buxton Bros Str., Plovdiv, Bulgaria
| | - Nikolina P Milcheva
- Medical University of Plovdiv, Faculty of Pharmacy, Department of Chemical Sciences, 120 Buxton Bros Str., Plovdiv, Bulgaria
| | - Fatma Genc
- İstanbul Yeni Yüzyıl Üniversitesi, Faculty of Pharmacy, 26 Yılanlı Ayazma Caddesi, İstanbul, Turkey
| | - Kiril B Gavazov
- Medical University of Plovdiv, Faculty of Pharmacy, Department of Chemical Sciences, 120 Buxton Bros Str., Plovdiv, Bulgaria.
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Soylak M, Agirbas M, Yilmaz E. A new strategy for the combination of supramolecular liquid phase microextraction and UV-Vis spectrophotometric determination for traces of maneb in food and water samples. Food Chem 2020; 338:128068. [PMID: 32950010 DOI: 10.1016/j.foodchem.2020.128068] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/23/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023]
Abstract
A novel and green method was developed for enrichment of maneb (manganese ethylene-bisdithiocarbamate) with a supramolecular solvent liquid phase microextraction method. The microextraction method has been used for the first time in the literature for separation-preconcentration of maneb. 1-decanol and tetrahydrofuran were used in the supramolecular solvent formation. The Mn2+ content of maneb was extracted in the supramolecular solvent phase as 1-(2-pyridylazo)-2-naphthol complex at pH 12.0. Manganese concentration was determined by UV-Vis spectrophotometer at 555 nm. Then, the maneb concentration equivalent to manganese concentration was calculated. The analytical parameters which effective in the method, including pH, volume of reagents, and sample volume were optimized. The limit of detection and the limit of quantification values for maneb were calculated as 2.22 μg L-1 and 7.32 μg L-1, respectively. The method was successfully applied in the analysis of the maneb content of water and food samples.
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Affiliation(s)
- Mustafa Soylak
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Technology Research and Application Center (TAUM), Erciyes University, 38039 Kayseri, Turkey.
| | - Metin Agirbas
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey
| | - Erkan Yilmaz
- Technology Research and Application Center (TAUM), Erciyes University, 38039 Kayseri, Turkey; Erciyes University, Faculty of Pharmacy, Department of Analytical Chemistry, 38039 Kayseri, Turkey; ERNAM Erciyes University, Nanotechnology Application and Research Center, 38039 Kayseri, Turkey
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Pectic acid–graphene oxide nanocomposite as an adsorbent in vortex-assisted dispersive solid-phase extraction for preconcentration of copper ion followed by flame atomic absorption spectrometry. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02884-y] [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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Shirani M, Habibollahi S, Akbari A. Centrifuge-less deep eutectic solvent based magnetic nanofluid-linked air-agitated liquid–liquid microextraction coupled with electrothermal atomic absorption spectrometry for simultaneous determination of cadmium, lead, copper, and arsenic in food samples and non-alcoholic beverages. Food Chem 2019; 281:304-311. [DOI: 10.1016/j.foodchem.2018.12.110] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/14/2018] [Accepted: 12/29/2018] [Indexed: 11/26/2022]
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Faraji M, Pourmohammad M, Aryanasab F, Shabanian M. (4-Hydroxy-2-oxo-2H-chromen-3-yl)methyl pyrrolidine-1-carbodithioate as a novel, highly selective and sensitive ligand for determination of copper in water and food samples by dispersive liquid–liquid microextraction coupled with microvolume UV–Vis spectrophotometry. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01616-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zaman BT, Bakırdere EG, Kasa NA, Deniz S, Sel S, Chormey DS, Bakırdere S. Development of an efficient and sensitive analytical method for the determination of copper at trace levels by slotted quartz tube atomic absorption spectrometry after vortex-assisted dispersive liquid-liquid microextraction in biota and water samples using a novel ligand. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:437. [PMID: 29951716 DOI: 10.1007/s10661-018-6735-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
This study describes the determination of trace levels of copper by slotted quartz tube atomic absorption spectrometry after dispersive liquid-liquid microextraction. A ligand synthesized from the reaction of salicylaldehyde and 1-naphthylamine was used to form coordinate copper complex prior to extraction. All parameters that influence the output of complex formation, extraction, and instrumental measurement were optimized to enhance the absorbance signal of copper. Under the optimum conditions, about 104-fold enhancement in sensitivity was recorded over the conventional flame atomic absorption spectrometer, corresponding to a 0.51 ng/mL detection limit. The percent relative standard deviation calculated for the lowest concentration (4.8%) indicated high precision for the experimental procedure. Accuracy and applicability of the optimum method were determined by performing spiked recovery tests on urine, lake water, and mineral water samples. Satisfactory recovery results were obtained between 82.2 and 106.3% at four different concentrations. Matrix matching method was also performed to increase the accuracy of quantification, and the percent recovery calculated for 175 ng/mL was 105.14%.
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Affiliation(s)
- Buse Tuğba Zaman
- Chemistry Department, Faculty of Art and Science, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Emine Gülhan Bakırdere
- Department of Science Education, Faculty of Education, Yıldız Technical University, 34210, İstanbul, Turkey.
| | - Nursu Aylin Kasa
- Chemistry Department, Faculty of Art and Science, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Serenay Deniz
- Chemistry Department, Faculty of Art and Science, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Sabriye Sel
- Chemistry Department, Faculty of Art and Science, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Dotse Selali Chormey
- Chemistry Department, Faculty of Art and Science, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Sezgin Bakırdere
- Chemistry Department, Faculty of Art and Science, Yıldız Technical University, 34210, İstanbul, Turkey.
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Usage of deep eutectic solvents for the digestion and ultrasound-assisted liquid phase microextraction of copper in liver samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1419-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Khayatian G, Moradi M, Hassanpoor S. MnO2/3MgO Nanocomposite for Preconcentration and Determination of Trace Copper and Lead in Food and Water by Flame Atomic Absorption Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818050088] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abbasi-Daronjoughi F, Tamaddon A, Ahmad Panahi H. In situ solvent formation microextraction based on a new ionic liquid for green preconcentration of trace amount of Cu (II) ions in water samples. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1448416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
| | - Atefeh Tamaddon
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Homayon Ahmad Panahi
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Sorouraddin SM, Farajzadeh MA, Ghorbani M. In situ-produced CO2-assisted dispersive liquid–liquid microextraction for extraction and preconcentration of cobalt, nickel, and copper ions from aqueous samples followed by graphite furnace atomic absorption spectrometry determination. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1224-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Application of Response Surface Methodology and Genetic Algorithm for Optimization and Determination of Iron in Food Samples by Dispersive Liquid–Liquid Microextraction Coupled UV–Visible Spectrophotometry. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2856-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Mohamed MA, El-badawy FM, El-Desoky HS, Ghoneim MM. Magnetic cobalt ferrite nanoparticles CoFe2O4platform as an efficient sensor for trace determination of Cu(ii) in water samples and different food products. NEW J CHEM 2017. [DOI: 10.1039/c7nj01857f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel electrochemical sensing platform using mesoporous nanoparticles for precise Cu determination is described.
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Affiliation(s)
- Mona A. Mohamed
- Pharmaceutical Chemistry Deptartment
- National Organization for Drug Control and Research [NODCAR]
- Giza
- Egypt
| | - Fared M. El-badawy
- Analytical and Electrochemistry Research Unit
- Department of Chemistry
- Faculty of Science
- Tanta University
- 31527 Tanta
| | - Hanaa S. El-Desoky
- Analytical and Electrochemistry Research Unit
- Department of Chemistry
- Faculty of Science
- Tanta University
- 31527 Tanta
| | - Mohamed M. Ghoneim
- Analytical and Electrochemistry Research Unit
- Department of Chemistry
- Faculty of Science
- Tanta University
- 31527 Tanta
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