1
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Efficient and easily scaled-up biosorbent based on natural and chemically modified macauba (Acrocomia aculeata) to remove Al 3+, Mn 2+ and Fe 3+ from surface water contaminated with iron mining tailings. Talanta 2023; 256:124273. [PMID: 36706501 DOI: 10.1016/j.talanta.2023.124273] [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: 08/06/2022] [Revised: 12/18/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
The ruptures of tailings mine dams in the cities of Mariana and Brumadinho contaminated local Brazilian Rivers with toxic metals. Herein, we describe a scaled-up biosorbent based on natural macauba endocarp (NTE) and macauba endocarp chemically treated (TE) to remove Al3+, Mn2+ and Fe3+ from aqueous solutions. For the TE material: the variation of pH and temperature of water did not cause significant sorption interferences; the kinetics studies suggest a pseudo-second-order model; the adsorption isotherms revealed that the Langmuir equation was the best fit for Al3+ and Mn2+, while the Freundlich equation best described the Fe3+; and the maximum adsorption capacities were between 0.268 mg g-1 and 1.379 mg g-1. A scaled-up was carried out using an adsorption column to remove the metals from Rio Paraopeba River water samples and the results showed that both NTE and TE are potentially low cost biosorbents for removing Al3+, Mn2+ and Fe3+.
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2
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Selective Membrane Sensor for Aluminum Determination in Food Products, Real Samples and Standard Alloys. MEMBRANES 2021; 11:membranes11070504. [PMID: 34209425 PMCID: PMC8308029 DOI: 10.3390/membranes11070504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 11/17/2022]
Abstract
The study involves the fabrication of an aluminum liquid membrane sensor based on the association of aluminum ions with the cited reagent 2,9-dimethyl-4,11-diphenyl -1,5,8,12-tetraaza cyclote tradeca-1,4,8,11-tetraene [DDTCT]. The characteristics slope (58 mV), rapid and linear response for aluminum ion was displayed by the proposed sensor within the concentration range 2.5 × 10-7-1.5 × 10-1 M, the detection limit (1.6 × 10-7) M, the selectivity behavior toward some metal cations, the response time 10 s), lifetime (150 days), the effect of pH on the suggested electrode potential and the requisite analytical validations were examined. The suitable pH range was (5.0-8.0 ), in this range the proposed electrode response is independent of pH. The suggested electrode was applied to detect the aluminum ions concentration in food products, real samples and standard alloys. The resulting data by the suggested electrode were statistically analyzed, and compared with the previously reported aluminum ion-selective electrodes in the literature.
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Rekhi H, Kaur R, Rani S, Malik AK, Kabir A, Furton KG. Direct Rapid Determination of Trace Aluminum in Various Water Samples with Quercetin by Reverse Phase High-Performance Liquid Chromatography Based on Fabric Phase Sorptive Extraction Technique. J Chromatogr Sci 2020; 56:452-460. [PMID: 31986204 DOI: 10.1093/chromsci/bmy015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/22/2018] [Indexed: 11/12/2022]
Abstract
The determination of trace levels of aluminum by high-performance liquid chromatography (HPLC) with UV detection using quercetin, a natural bioactive flavonol, as a metal complexation agent is presented in the current article. The developed method has been successfully applied to the direct determination of aluminum in water samples collected from various sources. A preconcentration technique is indispensable due to the presence of aluminum in environmental water at trace levels. Fabric phase sorptive extraction (FPSE), a relatively new but promising sample preparation technique, was applied to preconcentrate quercetin-Al(III) complex from water samples. Efficient extraction of the quercetin-Al(III) complex from aqueous samples has been accomplished by applying FPSE using a cellulose fabric substrate coated with sol-gel C18 hybrid nanocomposite sorbent. Baseline separation of Al-quercetin complex has been achieved on a reverse phase C18 column with the use of acetonitrile: 3% acetic acid (30:70; v/v) as the mobile phase at a flow rate of 1.0 mL/min. The new FPSE-HPLC-UV method can be used for the routine screening of Al ions in various water samples with high sensitivity, precision and reliability.
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Affiliation(s)
- Heena Rekhi
- Department of Chemistry, Punjabi University, Patiala-147002, India
| | - Ramandeep Kaur
- Department of Chemistry, Punjabi University, Patiala-147002, India
| | - Susheela Rani
- Department of Chemistry, Punjabi University, Patiala-147002, India
| | | | - Abuzar Kabir
- Department of Chemistry, Punjabi University, Patiala-147002, India.,Department of Chemistry, G.S.S.D.G.S. Khalsa College Patiala, Patiala-147001, India
| | - Kenneth G Furton
- Department of Chemistry and Biochemistry, International Forensic Research Institute, Florida International University, Miami, FL 33193, USA
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4
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Fahimirad B, Asghari A. The simple design of a new recyclable magnetic carbon graphite adsorbent based on 2-amino-5-mercapto-1,3,4-thiadiazole for the fast extraction of two anti-depressant drugs. NEW J CHEM 2020. [DOI: 10.1039/d0nj00053a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, an efficient magnetic nanoadsorbent, cubic SnFe2O4/graphitic carbon nitride (g-C3N4) modified by 2-amino-5-mercapto-1,3,4-thiadiazole (AMT), was synthesized.
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Affiliation(s)
| | - Alireza Asghari
- Department of Chemistry
- Semnan University
- Semnan 35195-363
- Iran
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5
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Fahimirad B, Rajabi M, Elhampour A. A rapid and simple extraction of anti-depressant drugs by effervescent salt-assisted dispersive magnetic micro solid-phase extraction method using new adsorbent Fe3O4@SiO2@N3. Anal Chim Acta 2019; 1047:275-284. [DOI: 10.1016/j.aca.2018.10.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 09/18/2018] [Accepted: 10/12/2018] [Indexed: 01/05/2023]
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6
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Lima LC, Papai R, Gaubeur I. Butan-1-ol as an extractant solvent in dispersive liquid-liquid microextraction in the spectrophotometric determination of aluminium. J Trace Elem Med Biol 2018; 50:175-181. [PMID: 30262277 DOI: 10.1016/j.jtemb.2018.06.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/17/2018] [Accepted: 06/25/2018] [Indexed: 01/17/2023]
Abstract
Determining aluminium ions at μg L-1 scale currently requires either costly analytical techniques such as inductively coupled plasma, and/or graphite furnace atomic absorption spectrometry. Dispersive liquid-liquid microextraction (DLLME) is designed to promote separation and preconcentration, thus making it possible to determine the analyte of interest without significant matrix influence. This study was aimed at the development of a spectrophotometric method to determine Al3+ after microextraction of its complex with quercetin. Butan-1-ol was used as a novel extractant solvent in the DLLME process. The parameters influencing complexation and microextraction, such as the amount of quercetin and volume of extractant were evaluated by univariate analysis. In optimised conditions were estimated for the proposed method: linear range from 7.5 to 165.0 μg L-1, LOD of 2.0 μg L-1, and LOQ of 7.0 μg L-1. The accuracy was checked by applying the proposed method to water (NIST SRM-1643e) and rice flour (NIST SRM-1568c) certified reference materials and spike-and-recovery trials with distinct samples (mineral water, green tea, thermal spring water, contact lens disinfecting solution, saline concentrate for hemodialysis and urine).
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Affiliation(s)
- Lucas Carvalho Lima
- Laboratório de Espectroanalítica Molecular e Atômica (LEMA), Centro de Ciências Naturais e Humanas, UFABC - Universidade Federal do ABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Rodrigo Papai
- Laboratório de Espectroanalítica Molecular e Atômica (LEMA), Centro de Ciências Naturais e Humanas, UFABC - Universidade Federal do ABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Ivanise Gaubeur
- Laboratório de Espectroanalítica Molecular e Atômica (LEMA), Centro de Ciências Naturais e Humanas, UFABC - Universidade Federal do ABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil.
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7
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Quantitative Determining of Ultra-Trace Aluminum Ion in Environmental Samples by Liquid Phase Microextraction Assisted Anodic Stripping Voltammetry. SENSORS 2018; 18:s18051503. [PMID: 29748500 PMCID: PMC5981444 DOI: 10.3390/s18051503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/03/2018] [Accepted: 05/06/2018] [Indexed: 01/31/2023]
Abstract
Direct detecting of trace amount Al(III) in aqueous solution by stripping voltammetry is often frustrated by its irreversible reduction, resided at −1.75 V (vs. Ag/AgCl reference), which is in a proximal potential of proton reduction. Here, we described an electroanalytical approach, combined with liquid phase microextraction (LPME) using ionic liquid (IL), to quantitatively assess trace amount aluminum in environmental samples. The Al(III) was caged by 8-hydroxyquinoline, forming a superb hydrophobic metal⁻chelate, which sequentially transfers and concentrates in the bottom layer of IL-phase during LPME. The preconcentrated Al(III) was further analyzed by a square-wave anodic stripping voltammetry (SW-ASV). The resulting Al-deposited electrodes were characterized by scanning electron microscopy and powder X-ray diffraction, showing the intriguing amorphous nanostructures. The method developed provides a linear calibration ranging from 0.1 to 1.2 ng L−1 with a correlation coefficient of 0.9978. The LOD attains as low as 1 pmol L−1, which reaches the lowest report for Al(III) detection using electroanalytical techniques. The applicable methodology was implemented for monitoring Al(III) in commercial distilled water.
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8
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Al-Kindy SM, Al-Hinai A, Al-Rasbi NK, Suliman FEO, Al-Lawati HJ. Spectrofluorimetric determination of aluminium in water samples using N-((2-hydroxynaphthalen-1-yl)methylene) acetylhydrazide. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2015.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Salma M.Z. Al-Kindy
- Department of Chemistry, College of Science, Sultan Qaboos UniversityPO Box 36Al-Khod 123Oman
| | - Aamna Al-Hinai
- Department of Chemistry, College of Science, Sultan Qaboos UniversityPO Box 36Al-Khod 123Oman
| | - Nawal K. Al-Rasbi
- Department of Chemistry, College of Science, Sultan Qaboos UniversityPO Box 36Al-Khod 123Oman
| | - Fakhr Eldin O. Suliman
- Department of Chemistry, College of Science, Sultan Qaboos UniversityPO Box 36Al-Khod 123Oman
| | - Haider J. Al-Lawati
- Department of Chemistry, College of Science, Sultan Qaboos UniversityPO Box 36Al-Khod 123Oman
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9
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Zhou F, Wang H, Liu P, Hu Q, Wang Y, Liu C, Hu J. A highly selective and sensitive turn-on probe for aluminum(III) based on quinoline Schiff's base and its cell imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 190:104-110. [PMID: 28917162 DOI: 10.1016/j.saa.2017.09.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 09/02/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
A reversible Schiff's base fluorescence probe for Al3+, (3,5-dichloro-2- hydroxybenzylidene) quinoline-2-carbohydrazide (QC), based on quinoline derivative has been designed, synthesized and evaluated. The QC exhibited a high sensitivity and selectivity toward Al3+ in EtOH-H2O (v/v=1:9, pH=6) by forming a 1:1 complex with Al3+ and the detection limit of QC for Al3+ was as low as 0.012μM. Furthermore, these results displayed that the binding of QCAl3+ was broken by F-, so this system could be used to monitor F- in the future. The enhancement fluorescence of the QC could be attributed to the inhibition of PET and ESIPT and the emergency of CHEF process induced by Al3+. More importantly, QC was not only successfully used for the determination of trace Al3+ in the tap water and the human blood serum, but was valid for fluorescence imaging of Al3+ in the Hela cells.
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Affiliation(s)
- Fenfen Zhou
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China
| | - Hongqing Wang
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China.
| | - Pengying Liu
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China
| | - Qinghua Hu
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China
| | - Yuyuan Wang
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China
| | - Can Liu
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China
| | - Jiangke Hu
- College of Chemistry and Chemical Engineering, University of South China, 28 Changsheng West Road Hengyang, Hunan 421001, PR China
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10
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Cheng D, Wang X, Xi Y, Cao J, Jiang W. Identification of the Al-binding proteins that account for aluminum neurotoxicity and transport in vivo. Toxicol Res (Camb) 2017; 7:127-135. [PMID: 30090569 DOI: 10.1039/c7tx00261k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 11/22/2017] [Indexed: 12/22/2022] Open
Abstract
Studies have shown that aluminum (Al) is the most abundant neurotoxic element on Earth, and is implicated in the pathogenesis of Alzheimer's disease (AD). However, the mechanisms underlying Al-induced neurotoxicity are still largely elusive. Based on affinity analyses with Al and LC-LTQ-MS, we have found that serum albumin, brain CK-B and 14-3-3ζ protein have a high affinity for Al3+, and albumin has a much stronger affinity for Al than transferrin. The normal activity of CK-B, and physiological combination of 14-3-3ζ with tau can be severely perturbed by Al. We anticipate that our assay will provide a new focus concerning the mechanism underlying Al-induced neurotoxicity, and aid the design of strategies to prevent AD and other human diseases related to Al overload.
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Affiliation(s)
- Dai Cheng
- Key Laboratory of Food Safety and Sanitation , Ministry of Education , College of Food Engineering and Biotechnology , Tianjin University of Science and Technology , Tianjin , People's Republic of China.,College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , People's Republic of China . .,Research Center of Food Science and Human Health , School of Medicine , Nankai University , Tianjin , 300071 , China
| | - Xiaomei Wang
- College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , People's Republic of China .
| | - Yu Xi
- College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , People's Republic of China .
| | - Jiankang Cao
- College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , People's Republic of China .
| | - Weibo Jiang
- College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , People's Republic of China .
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11
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Samarina TO, Volkov DS, Mikheev IV, Proskurnin MA. High-Sensitivity and High-Performance Determination of Trace Aluminum in Water for Pharmaceutical Purposes by Microwave Plasma and Inductively Coupled Plasma–Atomic Emission Spectrometry. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1348510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- T. O. Samarina
- Analytical Centre, M.V. Lomonosov Moscow State University, Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - D. S. Volkov
- Analytical Centre, M.V. Lomonosov Moscow State University, Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - I. V. Mikheev
- Analytical Centre, M.V. Lomonosov Moscow State University, Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - M. A. Proskurnin
- Analytical Centre, M.V. Lomonosov Moscow State University, Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
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12
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Cheng D, Zhang X, Li X, Hou L, Wang C. Determination of Aluminum in Edible Jellyfish Using Chrome Azurol S with Spot Test on Filter Paper. ANAL SCI 2017; 33:185-189. [PMID: 28190838 DOI: 10.2116/analsci.33.185] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aluminum (Al) has been well known as an environmental factor that may affect several enzymes and other biomolecules related to Alzheimer's disease. The increasing use of Al in the preparation and storage of food currently represents the main form of Al exposure for the general public. The present study was aimed to develop a household procedure for the rapid test determination of Al in edible jellyfish. The method was developed based on the reaction of Chrome Azurol S with Al in acidic medium, forming a colored compound on the surface of filter paper. Experimental design methodologies were used to optimize the measurement conditions. The proposed method was applied successfully to the analysis of Al in edible jellyfish products in clinical laboratory and household settings.
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Affiliation(s)
- Dai Cheng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology
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13
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Santarossa DG, Talio MC, Fernández LP. Aluminium traces determination in biological and water samples using a novel extraction scheme combined with molecular fluorescence. Microchem J 2016. [DOI: 10.1016/j.microc.2016.06.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Biosorption of aluminum through the use of non-viable biomass of Pseudomonas putida. J Biotechnol 2016; 236:57-63. [DOI: 10.1016/j.jbiotec.2016.07.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 11/22/2022]
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15
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Farajbakhsh F, Amjadi M, Manzoori J, Ardalan MR, Jouyban A. Microextraction Methods for Preconcentration of Aluminium in Urine Samples. PHARMACEUTICAL SCIENCES 2016. [DOI: 10.15171/ps.2016.15] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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16
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A new automated system for the determination of Al(III) species in dialysis concentrates by electrothermal atomic absorption spectrometry using a combination of chelating resin. Microchem J 2015. [DOI: 10.1016/j.microc.2015.04.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Yousif AM, Labib SA. Fabrication of New Cellulose-Based Sorbents for Fast and Efficient Removal of Hazardous Al(III) Ions from Their Aqueous Solutions. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2015.1050732] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Garau A, Oliver M, Rosende M, Mánuel-Vez MP, Miró M. High-throughput automatic flow method for determination of trace concentrations of aluminum in dialysis concentrate solutions using salicylaldehyde picolinoylhydrazone as a turn-on fluorescent probe. Talanta 2015; 133:120-6. [DOI: 10.1016/j.talanta.2014.04.094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 04/02/2014] [Accepted: 04/21/2014] [Indexed: 10/25/2022]
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19
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Polak-Berecka M, Szwajgier D, Waśko A. Biosorption of Al+3and Cd+2by an Exopolysaccharide fromLactobacillus rhamnosus. J Food Sci 2014; 79:T2404-8. [DOI: 10.1111/1750-3841.12674] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 08/25/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Magdalena Polak-Berecka
- Dept. of Biotechnology; Human Nutrition and Science of Food Commodities; Univ. of Life Sciences in Lublin; Skromna 8 20-704 Lublin Poland
| | - Dominik Szwajgier
- Dept. of Biotechnology; Human Nutrition and Science of Food Commodities; Univ. of Life Sciences in Lublin; Skromna 8 20-704 Lublin Poland
| | - Adam Waśko
- Dept. of Biotechnology; Human Nutrition and Science of Food Commodities; Univ. of Life Sciences in Lublin; Skromna 8 20-704 Lublin Poland
- Inst. of Agrophysics; Polish Academy of Sciences; Doświadczalna 4 20-290 Lublin Poland
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20
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Moniri E, Panahi HA, Mohammadi YG, Gaforian H. Removal of aluminum (III) from environmental samples by siliceous support grafted with poly[1-(N,N-bis-carboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide] brushes. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Elham Moniri
- Department of Chemistry; Varamin (Pishva) Branch; Islamic Azad University; Varamin Iran
| | - Homayon Ahmad Panahi
- Department of Chemistry; Central Tehran Branch; Islamic Azad University; Tehran Iran
| | - Yasamin Ganbari Mohammadi
- Department of Sea Chemistry; Faculty of Marin of Sciences and Technology; North Tehran Branch; Islamic Azad University; Tehran Iran
| | - Hossein Gaforian
- Department of Sea Chemistry; Faculty of Marin of Sciences and Technology; North Tehran Branch; Islamic Azad University; Tehran Iran
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Rajan YC, Inbaraj BS, Chen BH. In vitro adsorption of aluminum by an edible biopolymer poly(γ-glutamic acid). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:4803-4811. [PMID: 24799126 DOI: 10.1021/jf5011484] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Accumulation of aluminum in human has been reported to be associated with dementia, Parkinson's disease, and Alzheimer's disease. The objectives of this study were to evaluate an edible biopolymer poly(γ-glutamic acid) (γ-PGA) for aluminum removal efficiency under in vitro conditions as affected by pH, contact time, aluminum concentration, temperature, ionic strength, and essential metals in both aqueous aluminum solution and simulated gastrointestinal fluid (GIF). A low aluminum adsorption occurred at pH 1.5-2.5, followed by a maximum adsorption at pH 3.0-4.0 and precipitating thereafter as aluminum hydroxide at pH > 4. Adsorption was extremely fast with 81-96% of total adsorption being attained within 1 min, reaching equilibrium in 5-10 min. Kinetic data at low (10 mg/L) and high (50 mg/L) concentrations were well described by pseudo-first-order and pseudo-second-order models, respectively. Equilibrium adsorption isotherms at different temperatures were precisely fitted by both Langmuir and Redlich-Peterson models with the maximum adsorption capacities at 25, 37, and 50 °C being 35.85, 38.68, and 44.23 mg/g, respectively. Thermodynamic calculations suggested endothermic and spontaneous nature of aluminum adsorption by γ-PGA with increased randomness at the solid/solution interface. Variation in ionic strengths did not alter the adsorption capacity, however, the incorporation of essential metals significantly reduced the aluminum adsorption by following the order copper > iron > zinc > calcium > potassium. Compared to aqueous solution, the aluminum adsorption from simulated GIF was high at all studied pH (1-4) with Langmuir monolayer adsorption capacity being 49.43 mg/g at 37 °C and pH 4. The outcome of this study suggests that γ-PGA could be used as a safe detoxifying agent for aluminum.
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Affiliation(s)
- Yesudoss Christu Rajan
- Department of Food Science and ‡Graduate Institute of Medicine, Fu Jen University , Taipei 242, Taiwan
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22
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Shokrollahi A, Aghaei R. Spectrophotometeric determination of trace amounts of Al3+ ion in water samples after cloud point extraction using quinizarin as a complexing agent. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:1113-1121. [PMID: 24065134 DOI: 10.1007/s10661-013-3442-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 09/14/2013] [Indexed: 06/02/2023]
Abstract
In this study, cloud point extraction was used for the preconcentration of Al(3+) ion after the complex formation with 1,4-dihydroxy-9,10-anthraquinone (Quinizarin [QUIN]), and subsequent analysis by spectrophotometeric method, using Triton X-114 as surfactant. The optimal extraction and reaction conditions were studied (i.e., pH = 5.5, 0.1 mM QUIN, Triton X-114 = 0.1% (w/v)), and the analytical characteristics of the method (e.g., limit of detection, linear range, preconcentration, and enrichment factors) were obtained. Linearity was obeyed in the range of 3.33-166.67 ng ml(-1) of Al(3+) ion. The detection limit of the method was 2.09 ng ml(-1) for Al(3+) ion. The interference effect of some anions and cations was also tested. The method was applied to determine Al(3+) ion in water samples.
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Silver nanoparticles capped with 8-hydroxyquinoline-5-sulfonate for the determination of trace aluminum in water samples and for intracellular fluorescence imaging. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1055-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Potentiometric Determination of Aluminum in Foods, Pharmaceuticals, and Alloys by AlMCM-41-Modified Carbon Paste Electrode. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9476-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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25
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Khan S, Kazi TG, Baig JA, Afridi HI, Kolachi NF. Separation/preconcentration methods for the determination of aluminum in dialysate solution and scalp hair samples of kidney failure patients. Biol Trace Elem Res 2011; 144:205-16. [PMID: 21573872 DOI: 10.1007/s12011-011-9070-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 04/28/2011] [Indexed: 11/25/2022]
Abstract
A new method is reported for the separation of aluminum ions (Al(3+)) from interfering cations in pharmaceutical and biological samples through solid-phase extraction (SPE) using 2-methyl-8-hydroxyquinoline (8-hydroxyquinaldine) on activated silica. While separated Al(3+) was preconcentrated by cloud point extraction (CPE) using 3,5,7,2'-4'-pentahydroxyflavone (morin) as complexing reagent, the resulting complex was entrapped in nonionic surfactant (Triton X-114) as prior step to its determination by spectrofluorimetry (SPF). The validity of separation/preconcentration of Al(3+) was checked by certified reference material of human hair and standard addition method. The chemical variables affecting the analytical performance of the separation/preconcentration methods were studied and optimized. The enrichment factor and detection limit of Al(3+) for the preconcentration of 10 ml of dialysate solution and acid-digested samples of scalp hair samples were found to be 25 and 0.34 μg/L, respectively. The relative standard deviation for six replicates of standard containing 20 μg/L of Al(3+) was <10%. In all DS, the concentration of Al was >10 μg/L. The level of Al in scalp hair samples of kidney failure patients was higher than healthy controls.
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Affiliation(s)
- Sumaira Khan
- .National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
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26
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Zheng H, Gao X, Song L, Guo H, Yang S, Chang X. Preconcentration of trace aluminum (III) ion using a nanometer-sized TiO2-silica composite modified with 4-aminophenylarsonic acid, and its determination by ICP-OES. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0667-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Ulusoy Hİ, Gürkan R, Aksoy Ü, Akçay M. Development of a cloud point extraction and preconcentration method for determination of trace aluminum in mineral waters by FAAS. Microchem J 2011. [DOI: 10.1016/j.microc.2011.03.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Sarafraz Yazdi A, Razavi N. Separation and Determination of Amitriptyline and Nortriptyline in Biological Samples Using Single-Drop Microextraction with GC. Chromatographia 2011. [DOI: 10.1007/s10337-010-1900-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Beniz Gündüz S, Maltaş E, Yıldız S. Fluorimetric Analysis of Aluminum in Diluted Hemodialysis Solutions by Using a Novel Schiff Base. ANAL LETT 2010. [DOI: 10.1080/00032711003763673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Al-Kindy SMZ, Al-Mafrigi Z, Shongwe MS, Suliman FEO. Spectrofluorimetric determination of aluminium using 2-hydroxy-1-naphthylidene-(8-aminoquinoline). LUMINESCENCE 2010; 26:462-70. [DOI: 10.1002/bio.1253] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2010] [Revised: 08/22/2010] [Accepted: 08/30/2010] [Indexed: 11/08/2022]
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31
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Bulut VN, Arslan D, Ozdes D, Soylak M, Tufekci M. Preconcentration, separation and spectrophotometric determination of aluminium(III) in water samples and dialysis concentrates at trace levels with 8-hydroxyquinoline-cobalt(II) coprecipitation system. JOURNAL OF HAZARDOUS MATERIALS 2010; 182:331-336. [PMID: 20619964 DOI: 10.1016/j.jhazmat.2010.06.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 05/20/2010] [Accepted: 06/09/2010] [Indexed: 05/29/2023]
Abstract
A separation-preconcentration procedure was developed for the determination of trace amounts of aluminium in water samples and dialysis concentrates by UV-vis Spectrophotometry after coprecipitation using 8-hydroxyquinoline (8-HQ) as a chelating agent and Co(II) as a carrier element. This procedure is based on filtration of the solution containing precipitate on a cellulose nitrate membrane filter following aluminium(III) coprecipitation with Co/8-HQ and then the precipitates together with membrane filter were dissolved in concentrated nitric acid. The metal contents of the final solution were determined by UV-vis Spectrophotometry with Erio Chrome Cyanine-R standard method. Several parameters including pH of sample solution, amount of carrier element and reagent, standing time, sample volume for precipitation and the effects of diverse ions were examined. The enrichment factor was calculated as 50 and the detection limits, corresponding to three times the standard deviation of the blank (N: 10), was found to be 0.2 microg L(-1). The accuracy of the method was tested with standard reference material (CRM-TMDW-500) and spiked addition. Determination of aluminium(III) was carried out in sea water, river water, tap water and haemodialysis fluids samples. The recoveries were >95%. The relative standard deviations of determination were less than 6%.
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Affiliation(s)
- Volkan Numan Bulut
- Maçka Vocational School, Karadeniz Technical University, 61750 Trabzon, Turkey
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32
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Kazi TG, Khan S, Baig JA, Kolachi NF, Afridi HI, Kandhro GA, Kumar S, Shah AQ. Separation and preconcentration of aluminum in parenteral solutions and bottled mineral water using different analytical techniques. JOURNAL OF HAZARDOUS MATERIALS 2009; 172:780-785. [PMID: 19665295 DOI: 10.1016/j.jhazmat.2009.07.064] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2009] [Revised: 07/14/2009] [Accepted: 07/16/2009] [Indexed: 05/28/2023]
Abstract
A new method is reported for the separation of aluminum ions [Al(III)] from interfering elements in parenteral and pharmaceutical solutions (PS) and bottled mineral water (BMW) samples, through solid-phase extraction with 2-methyl-8-hydroxyquinoline (quinaldine) adsorbed onto activated silica gel. While the enrichment step of separated Al(III) was carried out by cloud point extraction (CPE) using 8-hydroxyquinoline as complexing reagent, the resulted complex was entrapped in a non-ionic surfactant octylphenoxypolyethoxyethanol (Triton X-114). The enriched Al(III) in sample solutions were determined by spectrofluorometry (SPF) at lambda(excitation) 370 nm and lambda(emission) 510 nm, and flame atomic absorption spectrometry (FAAS) for comparative purpose. The variables affecting the complexation and extraction steps were studied and optimized. The validity of methodology was checked with certified reference material of water and standard addition method. The enrichment factor and detection limit of Al(III) for the preconcentration of 50 ml of PS and BMW were found to be 100 and 0.25 microg/L, respectively. The proposed method has been applied for the determination of trace amount of Al(III) in PS and BMW samples with satisfactory results. In PS the levels of Al(III) are above than permissible limit (25 microg/L).
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Affiliation(s)
- Tasneem G Kazi
- Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
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33
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Mahmoud ME, Haggag SS, Rafea MA, Abdel-Fattah TM. Nano-sized Co(II)-8-hydroxyquinolate complex thin film via surface layer-by-layer chemical deposition method: Optimized factors and optical properties. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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López-Gonzálvez A, Ruiz M, Barbas C. Validated flow-injection method for rapid aluminium determination in anti-perspirants. J Pharm Biomed Anal 2008; 48:340-6. [DOI: 10.1016/j.jpba.2008.01.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2007] [Revised: 01/11/2008] [Accepted: 01/14/2008] [Indexed: 10/22/2022]
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35
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Tuzen M, Soylak M. Biosorption of aluminum on Pseudomonas aeruginosa loaded on Chromosorb 106 prior to its graphite furnace atomic absorption spectrometric determination. JOURNAL OF HAZARDOUS MATERIALS 2008; 154:519-525. [PMID: 18054164 DOI: 10.1016/j.jhazmat.2007.10.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2007] [Revised: 10/15/2007] [Accepted: 10/16/2007] [Indexed: 05/25/2023]
Abstract
A biosorption procedure for separation-enrichment of aluminum in environmental samples has been presented in this work. Pseudomonas aeruginosa loaded on Chromosorb 106 has been used as biosorbent for that purpose. P. aeruginosa is a gram-negative, aerobic rod. The influences of pH of the aqueous solution, eluent type, eluent volume, sample volume, etc. were examined on the quantitative recovery of aluminum in P. aeruginosa loaded on Chromosorb 106. The effects of concomitant ions on the recoveries of aluminum were also investigated. The detection limit based on 3 sigma for aluminum is 30 ng L(-1). Three certified reference materials (LGC 6010 Hard Drinking Water, NIST-SRM 1568a Rice Flour and NRCC-DORM-2 Dogfish Muscle) were analyzed for the validation of the presented procedure. The proposed procedure was applied to the determination of aluminum in environmental samples including natural water and food samples. The concentration of aluminum in real samples was found at ppb level.
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Affiliation(s)
- Mustafa Tuzen
- Gaziosmanpasa University, Faculty of Science and Arts, Chemistry Department, 60250 Tokat, Turkey
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36
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Sang H, Liang P, Du D. Determination of trace aluminum in biological and water samples by cloud point extraction preconcentration and graphite furnace atomic absorption spectrometry detection. JOURNAL OF HAZARDOUS MATERIALS 2008; 154:1127-1132. [PMID: 18082326 DOI: 10.1016/j.jhazmat.2007.11.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2007] [Revised: 11/07/2007] [Accepted: 11/07/2007] [Indexed: 05/25/2023]
Abstract
A cloud point extraction (CPE) method for the preconcentration of trace aluminum prior to its determination by graphite furnace atomic absorption spectrometry (GFAAS) has been developed. The CPE method is based on the complex of Al(III) with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP), and then entrapped in non-ionic surfactant Triton X-114. PMBP was used not only as chelating reagent in CPE preconcentration, but also as chemical modifier in GFAAS determination. The main factors affecting CPE efficiency, such as pH of sample solution, concentration of PMBP and Triton X-114, equilibration temperature and time, were investigated in detail. An enrichment factor of 37 was obtained for the preconcentration of Al(III) with 10 mL solution. Under the optimal conditions, the detection limit of this method for Al(III) is 0.09 ng mL(-1), and the relative standard deviation is 4.7% at 10 ng mL(-1) Al(III) level (n=7). The proposed method has been applied for determination of trace amount of aluminum in biological and water samples with satisfactory results.
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Affiliation(s)
- Hongbo Sang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
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37
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Bohrer D, Dessuy MB, Kaizer R, do Nascimento PC, Schetinger MRC, Morsch VM, de Carvalho LM, Garcia SC. Tissue digestion for aluminum determination in experimental animal studies. Anal Biochem 2008; 377:120-7. [DOI: 10.1016/j.ab.2008.03.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2007] [Revised: 03/12/2008] [Accepted: 03/16/2008] [Indexed: 11/28/2022]
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38
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Al-Kindy SMZ, Al-Ghamari SS, Suliman FEO. A sequential injection method for the fluorimetric determination of aluminum in drinking water using 8-hydroxy-7-(4-sulfo-1-naphthylazo)-5-quinoline sulfonic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:1174-9. [PMID: 17337239 DOI: 10.1016/j.saa.2007.01.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2006] [Accepted: 01/24/2007] [Indexed: 05/14/2023]
Abstract
A robust and simple sequential injection (SI) method for the assay of aluminum ions in drinking water is described. The method is based on the complex formation between aluminum and 8-hydroxy-7-(4-sulfo-1-naphthylazo)-5-quinoline sulfonic acid (HSNQ). The fluorescence of the complex is monitored at an emission wavelength of 492 nm with excitation at 357 nm. The HSNQ concentration, aspirated reagent and sample volumes were optimized simultaneously using 3(3) full factorial design. The optimum operating conditions are aspirated sample and reagent volumes of 90 and 70 microL, respectively, and HSNQ concentration of 20 microM. With these conditions linear calibration curves were obtained from 100 to 800 ppb. The detection limit was 4 ppb. The maximum relative standard deviation of the method was 1.43% (n=5). The method was successfully applied for the determination of aluminum in drinking water samples.
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Affiliation(s)
- Salma M Z Al-Kindy
- Department of Chemistry, College of Science, Sultan Qaboos University, Al-Khod, Oman.
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39
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Komárek J, Cervenka R, Růzicka T, Kubán V. ET-AAS determination of aluminium in dialysis concentrates after continuous flow solvent extraction. J Pharm Biomed Anal 2007; 45:504-9. [PMID: 17897803 DOI: 10.1016/j.jpba.2007.08.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Revised: 08/13/2007] [Accepted: 08/16/2007] [Indexed: 11/29/2022]
Abstract
Conditions of a continuous flow extraction (CFE) of aluminium acetylacetonate in acetylacetone and aluminium 8-hydroxyquinolinate into methylisobutylketone (lengths of reaction and extraction coils, flow rates of aqueous and organic phases and their flow rate ratio, pH of aqueous phase, lengths of coils for transport of aqueous and organic phases and effect of salts) were studied. The analytical signal of the aluminium chelates present in the organic phase was measured at 309.3 nm using atomic absorption spectrometry with electrothermal atomization (ET-AAS) at the flow rate ratio F aq/F org=3 for aqueous and organic phases. The five points calibration curves were linear (R2 0.9973 and 0.9987) up to 21 microgl(-1) Al with the limits of detection of 0.3 microgl(-1) and the recovery 100+/-2% and precision of 3% at 2-10-fold dilution of the dialysis concentrates. The acetylacetonate method was applied to the determination of aluminium in real dialysis concentrates. Aluminium in concentrations 5-6 microgl(-1) (R.S.D.s 5-10% in real samples) were found and the results were in the very good agreement with those obtained by an ET-AAS using preconcentration of Al(III) on a Spheron-Salicyl chelating sorbent (absolute and relative differences were under 0.4 microgl(-1) and 8.2%, respectively).
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Affiliation(s)
- J Komárek
- Department of Analytical Chemistry, Masaryk University, Kotlárská 2, CZ-611 37 Brno, Czech Republic
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40
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Li Z, Lu N, Zhou X, Song Q. Extraction spectrophotometric determination of aluminum in dialysis concentrates with 3,5-ditertbutylsalicylfluorone and ionic liquid 1-butyl-3-trimethylsilylimidazolium hexafluorophosphate. J Pharm Biomed Anal 2007; 43:1609-14. [PMID: 17184954 DOI: 10.1016/j.jpba.2006.11.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Revised: 11/20/2006] [Accepted: 11/23/2006] [Indexed: 11/22/2022]
Abstract
The paper describes a highly sensitive and selective extraction spectrophotometric method for determination of aluminum in dialysis concentrates with new reagent 3,5-ditertbutylsalicylfluorone abbreviated as DTBSF, in which the ionic liquid 1-butyl-3-trimethylsilylimidazolium hexafluorophosphate abbreviated as [C4tmsim][PF6] was used as novel medium for liquid/liquid extraction of aluminum(III). Under optimal condition, DTBSF reacted with aluminum(III) to form a neutral Al-DTBSF complex rapidly, the complex was then extracted into the [C4tmsim][PF6] phase, the absorbance of the complex in ionic liquid at 542 nm was recorded and used to determine aluminum(III). The apparent molar absorptivity of the complex and detection limit were found to be 3.52x10(6) l mol(-1) cm(-1) and 0.06 microg/l, respectively. The absorbance of the complex at 542 nm increases linearly with the concentration of aluminum(III) up to 3 microg of aluminum(III) in 250 ml of aqueous solution. The interference study show the determination of aluminum is free from interferences of almost all positive and negative ions found in dialysis concentrate samples. The determination of aluminum in dialysis concentrates were carried out by the present method and electrothermal atomic absorption spectrometry (GTAAS). The results were satisfactorily comparable so that the applicability of the proposed method with the ionic liquid system was also investigated. Moreover, the synthesis of and conditions for the formation and extraction of Al-DTBSF complex were investigated as well.
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Affiliation(s)
- Zaijun Li
- College of Chemical and Materials Engineering, Southern Yangtze University, Wuxi 214036, PR China.
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41
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Kara D, Fisher A, Hill SJ. The sensitive and selective determination of aluminium by spectrofluorimetric detection after complexation with N-o-vanillidine-2-amino-p-cresol. ACTA ACUST UNITED AC 2007; 9:994-1000. [PMID: 17726561 DOI: 10.1039/b708888b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple, easy to use and selective spectrofluorimetric method for the determination of trace levels of aluminium has been developed. A new Schiff base, N-o-vanillidine-2-amino-p-cresol (OVAC), has been synthesized and its fluorescence activity with aluminium investigated. Based on this chelation reaction, a spectrofluorimetric method has been developed for the determination of aluminium in samples buffered at pH 4.0 using acetic acid-sodium acetate. The chelation reaction between Al(iii) and N-o-vanillidine-2-amino-p-cresol was very fast, requiring only 20 min at room temperature to complex completely. The excitation and emission wavelengths were 423.0 and 553.0 nm, respectively, at which the OVAC-Al complex gave the maximum fluorescence intensity at pH 4.0 in a 50% ethanol-50% water medium. The interference from fluoride ions was minimized by the addition of Be(2+). Other ions were found not to interfere at the concentrations likely to be found in natural waters. Under these conditions, the calibration plot was linear up to 1000 microg L(-1) (r = 0.999). The limit of detection (3sigma) for the determination of Al(iii) was 0.19 microg L(-1) and the precision for multiple determinations of 3 ng mL(-1) Al(iii) prepared in ultra-pure water was found to be 0.29% (n = 16). The Schiff base ligand could be used to determine ultra-trace aluminium from natural waters. Analysis of environmental certified reference materials showed good agreement with the certified values. The procedure was found to be equally applicable to both fresh water and saline solutions (including sea water) using either normal external calibration or the standard additions method.
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Affiliation(s)
- Derya Kara
- Department of Chemistry, Art and Science Faculty, Balikesir University, 10100 Balikesir, Turkey
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