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Wang J, Liu S, Shen W. Absorption and Resonance Rayleigh Scattering Spectra of Ag(I) and Erythrosin System and Their Analytical Application in Food Safety. Front Nutr 2022; 9:900215. [PMID: 35614984 PMCID: PMC9125220 DOI: 10.3389/fnut.2022.900215] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 04/04/2022] [Indexed: 01/12/2023] Open
Abstract
In pH 4.4∼4.6 weakly acidic media, erythrosine (Ery) can react with Ag(I) to form hydrophobic ion-association complex, which can further aggregate to form nanoparticles with an average particle size of about 45 nm under the action of water phase extrusion and van der Waals force. As a result, it could lead to a decrease of absorbance, a significant enhancement of resonance Rayleigh scattering (RRS) and the appearance of a new emission spectrum. Based on these Phenomena, two new methods (spectrophotometry and RRS) were established for the determination of trace Ag(I). The detection limits for Ag(I) by spectrophotometry and RRS are 9.74 and 0.12 ng/ml, respectively. In this paper, we have investigated the formation of nanoparticles, the optimum reaction conditions, the influence factors, explored the reason for enhancement of the scattering intensity and the effect of coexisting substance. This research shows that RRS method not only has good selectivity and high sensitivity, but also is simple and rapid. Analyzing of actual samples and standard samples, the determination result of this method is consistent with that of standard methods (Flame atomic absorption spectroscopy). Thus the method had potential feasibility to analysis for Ag(I) in the environmental water samples, pharmaceutical, and food industries.
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Affiliation(s)
- Jian Wang
- School of Elementary Education, Chongqing Normal University, Chongqing, China
| | - Shaopu Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
| | - Wei Shen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
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2
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Saiyasombat W, Kiatisevi S. Bis-BODIPY linked-triazole based on catechol core for selective dual detection of Ag + and Hg 2. RSC Adv 2021; 11:3703-3712. [PMID: 35424275 PMCID: PMC8694132 DOI: 10.1039/d0ra09686e] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 01/10/2021] [Indexed: 11/25/2022] Open
Abstract
Herein, we introduced a new chemosensor, bis-BODIPY linked-triazole based on catechol (BODIPY-OO) prepared by bridging two units of BODIPY fluorophore/triazole binding group with a catechol unit. A solution of this compound displayed 4- and 2-fold enhancements in fluorescence intensity after adding a mole equivalent amount of Ag+ and Hg2+ ions in methanol media, respectively. 1H NMR titrations of BODIPY-OO with Ag+ and Hg2+ suggested that the triazole was involved in the recognition process. BODIPY-OO showed high sensitivity toward Ag+ and Hg2+ over other metal ions with detection limits of 0.45 μM and 1 μM, respectively. It can also distinguish Hg2+ from Ag+ by addition of an EDTA. This compound can therefore be employed as practical fluorescent probe for monitoring the presence of Ag+ and Hg2+ ions. BODIPY–triazole–catechol combination serves as a “turn-on” fluorescent probe for dual detection and differentiation of Hg2+ and Ag+ ions.![]()
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Affiliation(s)
- Worakrit Saiyasombat
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University Rama VI Rd, Rajthevi Bangkok 10400 Thailand +66-2-354-7151 +66-2-201-5150
| | - Supavadee Kiatisevi
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University Rama VI Rd, Rajthevi Bangkok 10400 Thailand +66-2-354-7151 +66-2-201-5150.,Center of Sustainable Energy and Green Materials, Faculty of Science, Mahidol University Salaya Putthamonthon Nakhon Pathom 73170 Thailand
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3
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Di Masi S, Laschi S, Pennetta A, Faraoni P, Ranaldi F, De Benedetto GE, Malitesta C. Microfluidic Setup for Simultaneous Separation and Electrochemical Determination of Hg
2+
and Ag
+
Ions in Water. ELECTROANAL 2020. [DOI: 10.1002/elan.202060479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sabrina Di Masi
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali University of Salento Via Monteroni 73100 Lecce Italy
| | - Serena Laschi
- Ecobioservices and Researches SrL Via Madonna del Piano 6 50019 Sesto Fiorentino Firenze Italy
| | - Antonio Pennetta
- Dipartimento di Beni Culturali Via per Monteroni 73100 Lecce Italy
| | - Paola Faraoni
- Ecobioservices and Researches SrL Via Madonna del Piano 6 50019 Sesto Fiorentino Firenze Italy
- Laboratorio Congiunto NanoBioSens, Dipartimento di Scienze Biomediche Sperimentali e Cliniche “Mario Serio” Università degli Studi di Firenze Viale Pieraccini 6 50139 Firenze Italy
| | - Francesco Ranaldi
- Laboratorio Congiunto NanoBioSens, Dipartimento di Scienze Biomediche Sperimentali e Cliniche “Mario Serio” Università degli Studi di Firenze Viale Pieraccini 6 50139 Firenze Italy
| | | | - Cosimino Malitesta
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali University of Salento Via Monteroni 73100 Lecce Italy
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Ren H, Chen F, Li X, He Y. A new insight of structures, bonding and electronic properties for 6-mercaptopurine and Ag 8 clusters configurations: a theoretical perspective. BMC Chem 2019; 13:55. [PMID: 31384803 PMCID: PMC6661816 DOI: 10.1186/s13065-019-0573-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 04/11/2019] [Indexed: 11/29/2022] Open
Abstract
Background Many reports have also shown that the silver nanoparticles can effectively increase the anticancer drug activity and intensely enhance the drug curative effect. The adsorption of 6MP on nanomaterials has received a lot of attentions because of the drug coordination to its chemotherapeutic activity. The geometrical structures, chemical bonds, molecular orbital properties as well as density of states for the configurations were analyzed to deeply understand the interactions between the 6MP and Ag8 clusters for high effect anticancer drug production. Results In this work, the density functional theory B3LYP has been used to investigate the structures and properties of the configurations between 6-mercaptopurine (6MP) and Ag8 clusters using 6-311++G** level as well as an effective pseudo potential LANL2DZ. The geometries of ten configurations were optimized with full freedom. The geometrical structures, chemical bonds, molecular orbital properties as well as density of states for partial configurations were analyzed based on the density functional calculations. Polarizable continuum solvent model (PCM) in self-consistent reaction field (SCRF) were used for the aqueous calculations. The influences of temperature and pressure on the stability of the predominant configurations in the gas phase were further considered using standard statistical thermodynamic methods from 50 to 500 K and at 1 bar or 100 bar. Conclusion The result shows that there are ten stable configurations in the gas phase and there is a strong chemical bond between a Ag and S atom in the most stable configuration. The analysis of density of states also shows that the Ag–S chemical bond in the most stable configuration has been formed. Moreover, the results show that the temperature and the pressure will significantly influence the stability of the configurations in the gas phase. Additionally, when the solvent effect was considered, we found that there are only seven stable configurations and the solvent have different effect on various configurations.![]() Electronic supplementary material The online version of this article (10.1186/s13065-019-0573-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hongjiang Ren
- Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemical Engineering, Xi'an University, Taibai South Road 168#, Xi'an, 710065 China
| | - Fan Chen
- Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemical Engineering, Xi'an University, Taibai South Road 168#, Xi'an, 710065 China
| | - Xiaojun Li
- Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemical Engineering, Xi'an University, Taibai South Road 168#, Xi'an, 710065 China
| | - Yaping He
- Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemical Engineering, Xi'an University, Taibai South Road 168#, Xi'an, 710065 China
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Chen S, Feng F, Li S, Li XX, Shu L. Metal-organic framework DUT-67 (Zr) for adsorptive removal of trace Hg2+ and CH3Hg+ in water. CHEMICAL SPECIATION & BIOAVAILABILITY 2018. [DOI: 10.1080/09542299.2018.1509020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Sha Chen
- Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China
| | - Fan Feng
- Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China
| | - Sumei Li
- Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China
| | - Xiao-Xin Li
- Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China
| | - Lun Shu
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China
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López Guerrero M, Siles Cordero M, Vereda Alonso E, García de Torres A, Cano Pavón J. Cold vapour generation electrothermal atomic absorption spectrometry and solid phase extraction based on a new nanosorbent for sensitive Hg determination in environmental samples (sea water and river water). Microchem J 2017. [DOI: 10.1016/j.microc.2017.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Behbahani M, Omidi F, Kakavandi MG, Hesam G. Selective and sensitive determination of silver ions at trace levels based on ultrasonic‐assisted dispersive solid‐phase extraction using ion‐imprinted polymer nanoparticles. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3758] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mohammad Behbahani
- Research Center for Environmental Determinants of Health (RCEDH)Kermanshah University of Medical Sciences Kermanshah Iran
| | - Fariborz Omidi
- Department of Occupational Health Engineering, School of Public HealthTehran University of Medical Sciences Tehran Iran
| | | | - Ghasem Hesam
- Department of Occupational Health Engineering, School of Public HealthShahroud University of Medical Sciences Shahroud Iran
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8
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Zu W, Wang Z. Ultra-trace determination of methylmercuy in seafood by atomic fluorescence spectrometry coupled with electrochemical cold vapor generation. JOURNAL OF HAZARDOUS MATERIALS 2016; 304:467-73. [PMID: 26615576 DOI: 10.1016/j.jhazmat.2015.11.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/19/2015] [Accepted: 11/10/2015] [Indexed: 06/05/2023]
Abstract
A homemade electrochemical flow cell was adopted for the determination of methylmercury. The cold vapor of mercury atoms was generated from the surface of glassycarbon cathode through the method of electrolytic reduction and detected by atomic fluorescence spectroscopy subsequently. The operating conditions were optimized with 2 ng mL(-1) methylmercury standard solution. The caliberation curve was favorably linear when the concentrations of standard HgCH3(+) solutions were in the range of 0.2-5 ng mL(-1)(as Hg). Under the optimized conditions, the limit of detection (LOD) for methylmercury was 1.88×10(-3)ng mL(-1) and the precision evaluated by relative standard deviation was 2.0% for six times 2 ng mL(-1) standard solution replicates. The terminal analytical results of seafood samples, available from local market, showed that the methylmercury content ranged within 3.7-45.8 ng g(-1). The recoveries for methylmercury spiked samples were found to be in the range of 87.6-103.6% and the relative standard deviations below 5% (n=6) were acquired, which showed this method was feasible for real sample analysis.
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Affiliation(s)
- Wenchuan Zu
- Beijing Institute of Technology, College of Chemistry, Beijing 100081, China; Beijing Center for Physical & Chemical Analysis, Beijing 100089, China.
| | - Zhenghao Wang
- Beijing Normal University, College of Chemistry, Beijing 100875, China
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9
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Development and evaluation of selective coating for stir bar sorptive extraction of silver using sol–gel technique in combination with double-imprinting concept. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0618-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Soleimani M, Afshar MG. Highly selective solid phase extraction of mercury ion based on novel ion imprinted polymer and its application to water and fish samples. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s1061934815010189] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Synthesis and characterization of a nanomagnetic ion imprinted polymer for selective extraction of silver ions from aqueous samples. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1430-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Tortolini C, Bollella P, Antonelli ML, Antiochia R, Mazzei F, Favero G. DNA-based biosensors for Hg(2+) determination by polythymine-methylene blue modified electrodes. Biosens Bioelectron 2014; 67:524-31. [PMID: 25263314 DOI: 10.1016/j.bios.2014.09.031] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 09/12/2014] [Accepted: 09/15/2014] [Indexed: 11/26/2022]
Abstract
In this work we have developed a new electrochemical DNA-based biosensor for the selective determination of the Hg(2+) ion by the use of different electrodes modified with polythymine, bearing methylene blue, as redox probe, in 3' position. The determination of Hg(2+) can be employed with an excellent degree of selectivity by the use of DNA biosensors through the formation of the complex Thymine-Hg-Thymine (T-Hg-T): in fact, Hg(2+) tends to bind two thymines, generating a T-Hg-T complex with a formation constant higher than that one of the coupling Adenine-Thymine, which can be employed for a selective, fast and cost-effective Hg(2+) detection. The presence of the Hg(2+) in solution leads to the formation of T-Hg-T complex thus causing the "hairpin-like" folding of oligonucleotide, leading to an improved electronic exchange of methylene blue with the electrode surface due to the reduced distance and thus to an increase of the faradic current which is detected by means of square wave voltammetry (SWV). To test the feasibility of this kind of biosensor to be applied to the analysis of Hg(2+) we have developed several biosensors configuration by modifying the electrochemical sensor transducer: (a) Au electrode; (b) Au screen-printed electrode (SPE). The proposed system, allows the determination of Hg(2+) in the range 0.2-100 nM (0.05-20 ppb), with a sensitivity 0.327 µA/nM, LOD 0.1 nM (0.02 ppb), LOQ 0.2 nM (0.05 ppb) and RSD ≤4.3% when Au electrode is used as electrochemical transducer; on the other hand, in the case of Au SPE the linear range is 0.2-50 nM (0.05-10 ppb), with a sensitivity 0.285 µA/nM, while LOD and LOQ are the same as previously and RSD is ≤3.8%. This enabled the detection of mercury in real samples (waters and fishes) with good accuracy (recoveries 92-101% on waters and 92-107% on fishes, respectively) and reproducibility (RSD ≤9.6% for measurements on waters and ≤8.8% on fishes, respectively).
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Affiliation(s)
- Cristina Tortolini
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy; Department of Chemistry, Sapienza University of Rome, Italy
| | - Paolo Bollella
- Department of Chemistry, Sapienza University of Rome, Italy
| | | | - Riccarda Antiochia
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Franco Mazzei
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Gabriele Favero
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
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13
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Yu H, Sun W, Zhu X, Zhu X, Wei J. Determination of Silver with On-Line Preconcentration Using Dithiozone Chelate and Carbon Nanotubes for Preconcentration with Detection by Flame Atomic Absorption Spectrometry. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.738344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Ahmed SA, Soliman EM. Novel route for silylation of silica gel and aliphatic amines immobilization based on microwave-assisted solvent free synthesis and their applications for Cu(II) and Fe(III) removal from natural water samples. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2013; 48:817-828. [PMID: 23445425 DOI: 10.1080/10934529.2013.744660] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This article describes a new route for silica gel silylation and immobilization of aliphatic amines based on microwave-assisted solvent free synthesis to produce new solid phase extractors. The mode of synthesis was optimized under microwave conditions and achieved in a short time without using solvents. The produced phases named: silica gel- monoamine (SG-MA), silica gel- ethylenediamine (SG-EDA) and silica gel- diethylenetriamine (SG-DETA). The selectivity of these phases towards the uptake of Cu(II) and Fe(III) was checked using batch equilibration technique. Microwave radiation power and time of radiation were optimized to obtain the highest metal uptake values. The novel synthesized silica amine phases were characterized using Fourier transform infrared spectra and scanning electron microscope. The effects of different parameters including, hydrogen ion concentration, initial metal ion concentration, mass of the phase and shaking time on binding capacities of both Cu(II) and Fe(III) were explored. Results of sorption isotherms of the phases were better fitted with the Langmuir model (r² ≥ 0.950). In addition, the kinetics data were best fitted with the pseudo-second-order type (r² = 0.999). Application of SG-MA for removal of Cu(II)- and Fe(III)-spiked natural water samples was achieved satisfactorily using batch experiments. The results were found to refer to superior recovery percentages (90.0-97.01 ± 0.010-0.521%) with no significant matrix interferences.
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Affiliation(s)
- Salwa A Ahmed
- Chemistry Department, Faculty of Science, El-Minia University, Egypt. salwa
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Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Silver after Solid-Phase Extraction with 2-Mercaptobenzothiazole Immobilized on Microcrystalline Naphthalene. J CHEM-NY 2013. [DOI: 10.1155/2013/465825] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A simple and sensitive solid-phase extraction (SPE) procedure combined with flame atomic absorption spectrometry (FAAS) was designed for the extraction and determination of trace amounts of silver. A column of immobilized 2-mercaptobenzothiazole (MBT) on microcrystalline naphthalene was used as the sorbent. Silver was quantitatively retained on the column in the pH range of 0.5–6.0. After extraction, the solid mass consisting of silver complex and naphthalene was dissolved out of the column with 5.0 mL of dimethylformamide, and the analyte was determined by flame atomic absorption spectrometry (FAAS). Under the optimum experimental conditions, the adsorption capacity was found to be 1.18 mg of silver per gram of the sorbent. A sample volume of 800 mL resulted in a preconcentration factor of 160. The relative standard deviation obtained for ten replicate determinations at a concentration of 0.8 µg L−1was 1.4%, and the limit of detection was 0.02 µg L−1. The method was successfully applied to the determination of silver in radiology film, waste water, and natural water samples. The accuracy was examined by recovery experiments, independent analysis by electrothermal atomic absorption spectrometry, and analysis of two certified reference materials.
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Özdemir S, Okumuş V, Kılınç E, Bilgetekin H, Dündar A, Ziyadanogˇulları B. Pleurotus eryngii immobilized Amberlite XAD-16 as a solid-phase biosorbent for preconcentrations of Cd2+ and Co2+ and their determination by ICP-OES. Talanta 2012; 99:502-6. [DOI: 10.1016/j.talanta.2012.06.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 06/06/2012] [Accepted: 06/07/2012] [Indexed: 10/28/2022]
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Readily prepared resin-bound 2-pyridinethiol and its application for removal of mercury ions. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2011. [DOI: 10.1007/s13738-011-0006-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Studies on the Removal of Malachite Green Dyes by Adsorption onto Activated Carbons – A Comparative Study. ACTA ACUST UNITED AC 2011. [DOI: 10.4028/www.scientific.net/msf.671.165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Malachite Green is an organic compound that is used as a dyestuff for the materials like silk, leather and paper. As a part of removal of malachite green dye from textile and leather industrial wastes, using activated carbon as adsorbents namely, commercial activated carbon (CAC), rose apple carbon (RAC), coconut shell carbon (CSC) and saw dust carbon (SDC). The percentage of malachite green adsorbed increases with decrease in initial concentration and particle size of adsorbent and increased with increase in contact time, temperature and dose of adsorbent. The pH is highly sensitive for dye adsorption process. The adsorption process followed first order kinetics and the adsorption data with Freundlich and Langmuir isotherm models. The first order kinetic equations like Natarajan Khalaf, Lagergren, Bhattacharya and Venkobhachar and intra particle diffusion were found to be applicable. A comparative account of the adsorption capacity of various carbons has been made. These activated carbons are alternative to commercial AC for the removal dyes in General and MG is particular. These results are reported highly efficient and effective and low cost adsorbent for the MG. The thermodynamics parameters are also studied and it obeys spontaneous process. The results are confirmed by before and after adsorption process with the help of the following instrumental techniques viz., FT-IR, UV-Visible Spectrophotometer and SEM photos.
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Ebrahimzadeh H, Shekari N, Tavassoli N, Amini MM, Adineh M, Sadeghi O. Extraction of trace amounts of silver on various amino-functionalized nanoporous silicas in real samples. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0395-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Total mercury determination in different tissues of broiler chicken by using cloud point extraction and cold vapor atomic absorption spectrometry. Food Chem Toxicol 2010; 48:65-9. [DOI: 10.1016/j.fct.2009.09.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2009] [Revised: 08/21/2009] [Accepted: 09/11/2009] [Indexed: 11/22/2022]
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21
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EFENDIOGLU A, YAGAN ASCI M, BATI B. Preconcentration of Cu(II), Cd(II) and Pb(II) on Amberlite XAD-4 Resin Functionalized with N,N'-Bis(o-vanillinidene)-ethylenediamine and Their Determination by FAAS in Water Samples. ANAL SCI 2010; 26:1283-8. [DOI: 10.2116/analsci.26.1283] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Aysegül EFENDIOGLU
- Department of Chemistry, Faculty of Art and Science, Ondokuz Mayis University
| | - Mehtap YAGAN ASCI
- Department of Chemistry, Faculty of Art and Science, Ondokuz Mayis University
| | - Bekir BATI
- Department of Chemistry, Faculty of Art and Science, Ondokuz Mayis University
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DIVIŠ P, SZKANDERA R, BRULÍK L, DOCEKALOVÁ H, MATÚŠ P, BUJDOŠ M. Application of New Resin Gels for Measuring Mercury by Diffusive Gradients in a Thin-films Technique. ANAL SCI 2009; 25:575-8. [DOI: 10.2116/analsci.25.575] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Pavel DIVIŠ
- Brno University of Technology, Faculty of Chemistry
| | | | - Lukáš BRULÍK
- Brno University of Technology, Faculty of Chemistry
| | | | - Peter MATÚŠ
- Comenius University in Bratislava, Faculty of Natural Sciences
| | - Marek BUJDOŠ
- Comenius University in Bratislava, Faculty of Natural Sciences
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Ahmed SA. Alumina physically loaded by thiosemicarbazide for selective preconcentration of mercury(II) ion from natural water samples. JOURNAL OF HAZARDOUS MATERIALS 2008; 156:521-529. [PMID: 18243533 DOI: 10.1016/j.jhazmat.2007.12.049] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Revised: 11/29/2007] [Accepted: 12/15/2007] [Indexed: 05/25/2023]
Abstract
The multifunctional ligand, thiosemicarbazide, was physically loaded on neutral alumina. The produced alumina-modified solid phase (SP) extractor named, alumina-modified thiosemicarbazide (AM-TSC), experienced high thermal and medium stability. This new phase was identified based on surface coverage determination by thermal desorption method to be 0.437+/-0.1 mmol g(-1). The selectivity of AM-TSC phase towards the uptake of different nine metal ions was checked using simple, fast and direct batch equilibration technique. AM-TSC was found to have the highest capacity in selective extraction of Hg(II) from aqueous solutions all over the range of pH used (1.0-7.0), compared to the other eight tested metal ions. So, Hg(II) uptake was 1.82 mmol g(-1) (distribution coefficient log K(d)=5.658) at pH 1.0 or 2.0 and 1.78, 1.73, 1.48, 1.28 and 1.28 mmol g(-1) (log K(d)=4.607, 4.265, 3.634, 3.372 and 3.372), at pH 3.0, 4.0, 5.0, 6.0 and 7.0, respectively. On the other hand, the metal ions Ca(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) showed low uptake values in range 0.009-0.720 mmol g(-1) (log K(d)<3.0) at their optimum pH values. A mechanism was suggested to explain the unique uptake of Hg(II) ions based on their binding as neutral and chloroanionic species predominate at pH values < or =3.0 of a medium rich in chloride ions. Application of the new phase for the preconcentration of ultratrace amounts of Hg(II) ions spiked natural water samples: doubly distilled water (DDW), drinking tap water (DTW) and Nile river water (NRW) using cold vapor atomic absorption spectroscopy (CV-AAS) was studied. The high recovery values obtained using AM-TSC (98.5+/-0.5, 98.0+/-0.5 and 103.0+/-1.0) for DDW, DTW and NRW samples, respectively based on excellent enrichment factor 1000, along with a good precision (R.S.D.% 0.51-0.97%, n=3) demonstrate the accuracy and validity of the new modified alumina sorbent for preconcentrating ultratrace amounts of Hg(II) with no matrix interference.
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Affiliation(s)
- Salwa A Ahmed
- Chemistry Department, Faculty of Science, El-Minia University, El-Minia, Egypt.
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Oshita K, Motomizu S. Development of Chelating Resins and Their Ability of Collection and Separation for Metal Ions. BUNSEKI KAGAKU 2008. [DOI: 10.2116/bunsekikagaku.57.291] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Koji Oshita
- Department of International Conservation Studies for Cultural Properties, Faculty of Cultural Properties, Kibi International University
| | - Shoji Motomizu
- Chemistry and Biochemistry, Graduate School of Natural Science and Technology & Department of Chemistry, Faculty of Science
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25
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Refiker H, Merdivan M, Sezer Aygün R. Solid‐Phase Extraction of Silver in Geological Samples and its Determination by FAAS. SEP SCI TECHNOL 2008. [DOI: 10.1080/01496390701764833] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Hosseini MS, Hosseini M, Bandeh‐Gharaei AH. Solvent Impregnated Resins containing Quinizarin: Preparation and Application to Batch‐mode Separation of Cd(II), Cu(II), Ni(II), and Zn(II) in Aqueous Media Prior to the Determination by Flame Atomic Absorption Spectrometry. SEP SCI TECHNOL 2007. [DOI: 10.1080/01496390701626552] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Saber-Tehrani M, Hashemi-Moghaddam H, Husain SW, Zare K. Solid-Phase Extraction and Spectrophotometric Determination of Mercury with 6-Mercaptopurine in Environmental Samples. ACTA ACUST UNITED AC 2007; 97:675-83. [PMID: 17899881 DOI: 10.1002/adic.200790052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A highly selective, sensitive and rapid method for the determination of trace amounts of inorganic mercury based on the reaction of Hg (II) with 6-mercaptopurine and the solid phase extraction of the complex on C18 membrane disks was developed. The 6-mercaptopurine selectively reacts with Hg (II) to form a complex in the pH range of 5-8. This complex was preconcentrated by solid phase extraction with C18 disks. An enrichment factor of 100 was achieved. The molar absorptivity of the complex is 0.26 x 10(-6) L. mol(-1) cm(-1) measured at 315 nm. The Beer's law is obeyed in the concentration range of 0.002-0.048 microg mL(-1). The relative standard deviation for eleven-replicated measurement of 0.04 microg mL(-1) is 1.5 %. The detection limit is 0.001 microg mL(-1) in the water samples. The advantage of the method is that the determination of Hg (II) is free from interference of almost all the cations and anions found in environment and wastewater samples. The determination of Hg (II) in water samples of different origins and marine sediment were carried out by the present method and cold vapor atomic absorption spectrometry (CVAAS). Also the method's accuracy was investigated by using SRM 2709. The obtained results by the present procedure were in good agreement with those of the CVAAS and certified value, so that the applicability of the proposed method was confirmed for the real samples.
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Affiliation(s)
- Mohammad Saber-Tehrani
- Department of Chemistry, Science and Research Branch, Islamic Azad University, P. O. Box 14515-775, Tehran, Iran.
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28
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Cunha LD, Gomes AS, Coutinho FMB, Teixeira VG. Principais rotas de síntese de resinas complexantes de mercúrio. POLIMEROS 2007. [DOI: 10.1590/s0104-14282007000200014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A recuperação de espécies contendo mercúrio utilizando resinas complexantes obtidas a partir da modificação de suportes poliméricos vem atraindo cada vez mais a atenção dos pesquisadores. São muitas as combinações de suportes e grupos complexantes para a síntese desses materiais. Assim, este trabalho apresenta uma revisão sobre os principais grupos funcionais avaliados, bem como as rotas de síntese adotadas para a imobilização desses grupos nos suportes. É abordada também a problemática da síntese de uma resina eficiente, produzida a partir de um processo limpo e acessível às indústrias que utilizam mercúrio em seus processos.
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29
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Alan M, Kara D, Fisher A. Preconcentration of Heavy Metals and Matrix Elimination using Silica Gel Chemically Modified with 2,3‐Dihydroxybenzaldehyde. SEP SCI TECHNOL 2007. [DOI: 10.1080/01496390601174182] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Hosseini MS, Raissi H, Madarshahian S. Synthesis and application of a new chelating resin functionalized with 2,3-dihydroxy benzoic acid for Fe(III) determination in water samples by flame atomic absorption spectrometry. REACT FUNCT POLYM 2006. [DOI: 10.1016/j.reactfunctpolym.2006.05.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Chu H, Yang H, Huan S, Shen G, Yu R. Orientation of 6-Mercaptopurine SAMs at the Silver Electrode as Studied by Raman Mapping and in Situ SERS. J Phys Chem B 2006; 110:5490-7. [PMID: 16539488 DOI: 10.1021/jp053914m] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Self-assembled monolayers (SAMs) of 6-mercaptopurine (6MP) on a silver electrode in acid and alkaline media were investigated by a combination protocol of the SERS technique with Raman mapping, and it was found that the adsorption mode of 6MP SAMs changed with the pH value of the environment. Quantum calculations for the vibrational mode were performed by the BLYP/6-31G method. 6MP was adsorbed on the silver electrode with a tilted orientation via S, N1, and N7 atoms in acid medium, while the SAMs adopted head-on adsorption modes with the S atom and the N1 atom anchoring the silver surface in alkaline medium. However, 6MP SAMs turned to the same upright orientation on the electrode through the S and N7 atoms when either acid or basic solution was removed. Stability of 6MP SAMs was observed by in situ SERS spectroelectrochemical measurements. The results reveal that the desorption potentials of 6MP SAMs formed under acid and alkaline conditions from the Ag electrode were at ca. -1.3 V and -1.6 V vs SCE, respectively.
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Affiliation(s)
- Hui Chu
- State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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32
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Pan J, Wang S, Zhang R. Preparation and modification of macroporous epoxy-triethylenetetramine resin for preconcentration and removal of Hg(II) in aqueous solution. J Appl Polym Sci 2006. [DOI: 10.1002/app.24484] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Flotation-Spectrophotometric Determination of Ag(I) at the 10-7mol L-1Level Using Iodide and Ferroin as an Ion-associate. B KOREAN CHEM SOC 2005. [DOI: 10.5012/bkcs.2005.26.10.1529] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Kara D. Separation and Removal of Mercury(II) from Water Samples Using (Acetylacetone)‐2‐Thiol‐Phenyleneimine Immobilized on Anion‐Exchange Resin Prior to Determination by Cold Vapor Inductively Coupled Plasma Atomic Emission Spectroscopy. ANAL LETT 2005. [DOI: 10.1080/00032710500259185] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Kara D. Highly Selective Separation and Determination of Mercury (II) UsingN,N′‐bis(2‐mercaptophenyl)ethanediamide. ANAL LETT 2004. [DOI: 10.1081/al-200035901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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36
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Starvin AM, Rao TP. Removal and recovery of mercury(II) from hazardous wastes using 1-(2-thiazolylazo)-2-naphthol functionalized activated carbon as solid phase extractant. JOURNAL OF HAZARDOUS MATERIALS 2004; 113:75-79. [PMID: 15363516 DOI: 10.1016/j.jhazmat.2004.04.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2003] [Revised: 12/05/2003] [Accepted: 04/21/2004] [Indexed: 05/24/2023]
Abstract
As a part of removal of toxic heavy metals from hazardous wastes, solid phase extraction (SPE) of mercury(II) at trace and ultra trace levels was studied using 1-(2-thiazolylazo)-2-naphthol (TAN) functionalized activated carbon (AC). The SPE material removes traces of mercury(II) quantitatively in the pH range 6.0 +/- 0.2. Other parameters that influence quantitative recovery of mercury(II), viz. percent concentration of TAN in AC, amount of TAN-AC, preconcentration time and volume of aqueous phase were varied and optimized. The possible means of removal of Hg(II) from other metal ions that are likely to be present in the wastes of the chloroalkali industry is discussed. The potential of TAN-functionalized AC SPE material for decontaminating mercury from the brine sludge and cell house effluent of a chloralkali plant has been evaluated.
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Affiliation(s)
- A M Starvin
- Regional Research Laboratory (CSIR), Trivandrum 695019, India
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37
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Granado-Castro MD, Galindo-Riaño MD, Garcıa-Vargas M. Model experiments to test the use of a liquid membrane for separation and preconcentration of copper from natural water. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2003.11.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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38
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Pohl P, Prusisz B. Preconcentration of Mercury Using Duolite GT-73 in the Analysis of Water Samples by Inductively Coupled Plasma Atomic Emission Spectrometry. ANAL SCI 2004; 20:1367-70. [PMID: 15478351 DOI: 10.2116/analsci.20.1367] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Duolite GT-73 resin was used for the preconcentration of Hg(II) from hydrochloric acid media as well as separation of the analyte from diversity of the co-existing metal ions (Al, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb and Zn) in off-line column operation. Due to the high affinity of the resin to the transition metals, Hg was adsorbed alongside with the foreign metals investigated. A complete release of the concomitant metals from the resin without the desorption of Hg was carried out using solutions of HCl and HNO3. A quantitative recovery of Hg was obtained by digestion of the resin using a H2SO4 and H2O2 mixture in an open-vessel system. An enrichment factor of 40 was achieved. The devised procedure was applied for the determination of Hg(II) in tap-water samples.
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Affiliation(s)
- Pawel Pohl
- Wroclaw University of Technology, Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
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Luo M, Bi S. Solid phase extraction–spectrophotometric determination of dissolved aluminum in soil extracts and ground waters. J Inorg Biochem 2003; 97:173-8. [PMID: 14507474 DOI: 10.1016/s0162-0134(03)00243-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
An on-line solid-phase extraction (SPE) technique, linked to spectrophotometry, has been developed to overcome the problem of high matrix concentration, which is thought to interfere with the determination of low levels of aluminum (Al) in environmental samples. Tiron modified resin was prepared and used as a SPE absorbent, which can quantitatively adsorb Al(III) at pH 4-6 with an adsorption capacity of 5.6 mg g(-1) resin. The main advantages of this novel method are: (1) a much higher sensitivity has been obtained by SPE technology; and (2) a large amount of Na(+), K(+), Ca(2+) and Mg(2+) can be removed and the interference of Fe(III), Mn(II) and F(-) can be efficiently eliminated by eluting with 0.25 mol l(-1) NaOH. It is a highly selective and sensitive method for simple and quick determination of dissolved Al in soil extracts and ground waters, particularly suitable for the analysis of complex environmental samples.
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Affiliation(s)
- Mingbiao Luo
- Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University 210093, Nanjing, PR China
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Mondal BC, Das AK. Use of 6-Mercapto Purinylazo Resin in Chromium Speciation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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41
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Mondal BC, K. Das A. Determination of mercury species with a resin functionalized with a 1,2-bis(o-aminophenylthio)ethane moiety. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(02)01372-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Mondal BC, Das D, Das AK. Preconcentration and separation of copper, zinc and cadmium by the use of 6-mercapto purinylazo resin and their application in microwave digested certified biological samples followed by AAS determination of the metal ions. J Trace Elem Med Biol 2002; 16:145-8. [PMID: 12437149 DOI: 10.1016/s0946-672x(02)80016-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
6-Mercapto purinylazo resin has been used as solid phase extractor. Based on solid phase extraction, the present work describes the preconcentration and determination of copper, zinc and cadmium in certified biological samples after microwave-assisted digestion. The exchange capacity of the resin, the sorption and desorption of metal ions, and the effect of diverse ions have also been determined. The results show that the resin is highly selective for determination of these biologically significant metals. The method is simple, rapid and free from interferences and can be used routinely.
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Affiliation(s)
- Bhim C Mondal
- Department of Chemistry, The University of Burdwan, West Bengal, India
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