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Zhao CX, Yuan CG, Duan XL, Guo Q, Shen YW, Ma XP, Xie JJ, Zhang KG. Fabrication of sulfur-based functionalized activated carbon as solid phase extraction adsorbent for selective analysis of selenite in water. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135685. [PMID: 39226690 DOI: 10.1016/j.jhazmat.2024.135685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/19/2024] [Accepted: 08/26/2024] [Indexed: 09/05/2024]
Abstract
Based on the important feature of sulfur with excellent selectivity toward selenite in the presence of selenate, a simple and low-cost adsorbent of solid phase extraction known as sulfur loading activated carbon (SAC-6) was successfully prepared and applied for selenite (Se(IV)) analysis in water. Microstructure and morphological characteristics of SAC-6 had been identified by XRD, TEM, BET and FT-IR. In the static adsorption experiments, Se(IV) could be separated in a wide range of pH values (pH=3-11). The retention process of Se(IV) onto SAC-6 was characterized as spontaneous exothermic reaction. An obvious change of adsorption mechanism occurred in static and dynamic adsorption processes shown that the behaviors followed monolayer and hybrid adsorption. The theoretical maximum adsorption capacity of SAC-6 calculated by Langmuir-Freundlich was 13.48 mg/g. The microcolumn filled with SAC-6 was applied to extract Se(IV) in water solution. The detection limit of Se(IV) analytical procedure was confirmed as 0.27 μg/L within a linear range of 10-1000 μg/L. A good precision with relative standard deviation of 1.34 % (100 μg/L, n = 6) was achieved. The high adaptability and accuracy of SAC-6 microcolumn was validated by analyzing natural water samples and certified reference materials. Our work successfully excavated the application value of the sulfur selectivity, and also provided a new adsorbent for Se(IV) extraction and analysis.
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Affiliation(s)
- Chang-Xian Zhao
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China
| | - Chun-Gang Yuan
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China.
| | - Xue-Lei Duan
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China
| | - Qi Guo
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China
| | - Yi-Wen Shen
- Hebei Technology Innovation Center for Geographic Information Application, Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050011, China
| | - Xin-Peng Ma
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China
| | - Jiao-Jiao Xie
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China
| | - Ke-Gang Zhang
- Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China
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2
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Hassan AME, Alshehri RF, El-Bahy SM, Amin AS, Aish M. A modified selective optical sensor for selenium determination based on incorporating xylenol orange in a poly(vinyl chloride) membrane. RSC Adv 2023; 13:34618-34629. [PMID: 38024967 PMCID: PMC10680018 DOI: 10.1039/d3ra05308c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
A novel optical sensor has been developed to measure selenium ions. The sensor membrane was created by mixing xylenol orange (XO) and sodium tetraphenylborate (NaTPB) with a plasticized poly(vinyl chloride) membrane that contained o-nitrophenyl octyl ether (o-NPOE) as a plasticizer. XO was previously established for use in a colorimeter to measure selenium in water and other media. At pH 6.6, the color of the detecting membrane changed from orange to pink when in contact with Se4+ ions. Various variables affecting the uptake efficiency were evaluated and optimized. Under optimum conditions (i.e., 30% PVC, 60% o-NPOE, and 5.0% of both XO and NaTPB for 5.0 min as the response time), the proposed sensor displayed a linear range 10-175 ng mL-1 with the detection and quantification limits of 3.0 and 10 ng mL-1, respectively. Also, the precision (RSD%) was better than 2.2% for six replicate determinations of 100 ng mL-1 Se4+ in various membranes. For the detection of Se4+, the selectivity of the sensor membrane was investigated for a number of possible interfering inorganic cations, but no appreciable interference was found. With the use of a 0.3 M HCl solution, the sensor was successfully restored, and the response that may have been reversible and reproducible exhibited an RSD% of less than 2.0%. The sensor has been successfully used to analyze Se4+ ions in environmental and biological materials.
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Affiliation(s)
- Abeer M E Hassan
- Chemistry Department, Faculty of Pharmacy, October 6th University October Egypt
| | - Reem F Alshehri
- Chemistry Department, Faculty of Science, Taibah University Kingdom of Saudi Arabia
| | - Salah M El-Bahy
- Chemistry Department, Turabah University College, Taif University P.O. Box 11099 Taif 21944 Saudi Arabia
| | - Alaa S Amin
- Chemistry Department, Faculty of Science, Benha University Benha Egypt
| | - Mai Aish
- Chemistry Department, Faculty of Science, Port Said University Port Said Egypt
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3
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Chen JR, Tsai WH, Su CK. TiO 2 nanoparticle-Coated 3D-Printed porous monoliths enabling highly sensitive speciation of inorganic Cr, As, and Se. Anal Chim Acta 2023; 1271:341489. [PMID: 37328240 DOI: 10.1016/j.aca.2023.341489] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 06/18/2023]
Abstract
Post-printing functionalization can enhance the functionality and applicability of analytical devices manufactured using three-dimensional printing (3DP) technologies. In this study we developed a post-printing foaming-assisted coating scheme-through respective treatments with a formic acid (30%, v/v) solution and a sodium bicarbonate (0.5%, w/v) solution incorporating titanium dioxide nanoparticles (TiO2 NPs; 1.0%, w/v)-for in situ fabrication of TiO2 NP-coated porous polyamide monoliths in 3D-printed solid phase extraction columns, thereby enhancing the extraction efficiencies of Cr(III), Cr(VI), As(III), As(V), Se(IV), and Se(VI) for speciation of inorganic Cr, As, and Se species in high-salt-content samples when using inductively coupled plasma mass spectrometry. After optimizing the experimental conditions, the 3D-printed solid phase extraction columns with the TiO2 NP-coated porous monoliths extracted these species with 5.0- to 21.9-fold enhancements, relative to those obtained with the uncoated monolith, with absolute extraction efficiencies ranging from 84.5 to 98.3% and method detection limits ranging from 0.7 to 32.3 ng L-1. We validated the reliability of this multi-elemental speciation method through determination of these species in four reference materials [CASS-4 (nearshore seawater), SLRS-5 (river water), 1643f (fresh water), and Seronorm Trace Elements Urine L-2 (human urine); relative errors between certified and measured concentrations: 5.6 to +4.0%] and spike analyses of seawater, river water, agriculture waste, and human urine samples (spike recoveries: 96-104%; relative standard deviations of these measured concentrations all below 4.3%). Our results demonstrate that post-printing functionalization has great potential for future applicability in 3DP-enabling analytical methods.
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Affiliation(s)
- Jyun-Ran Chen
- Department of Chemistry, National Chung Hsing University, Taichung City, 402, Taiwan, ROC
| | - Wen-Hsiu Tsai
- Department of Chemistry, National Chung Hsing University, Taichung City, 402, Taiwan, ROC
| | - Cheng-Kuan Su
- Department of Chemistry, National Chung Hsing University, Taichung City, 402, Taiwan, ROC.
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4
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Xia T, Yang X, Zhang R, Huang A, Hu K, Hao F, Liu Y, Deng Q, Yang S, Wen X. Simultaneous determination of Co and Pb in P. polyphylla var. yunnanensis by ICP-OES after GO-TiO 2-DES-based dispersive micro solid phase extraction. Talanta 2023; 256:124316. [PMID: 36758504 DOI: 10.1016/j.talanta.2023.124316] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/09/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023]
Abstract
In this work, deep eutectic solvent (DES) was used to modify GO-TiO2 to synthesize new adsorption material GO-TiO2-DES nanocomposites. It was first used for dispersive micro solid phase extraction (DMSPE) and combined with inductively coupled plasma optical emission spectrometry (ICP-OES) for simultaneous determination of trace cobalt (Co) and lead (Pb) in natural medicine P. polyphylla var. yunnanensis. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), and the Brunauer-Emmett-Teller (BET) specific surface area were used to characterize. The results showed that GO-TiO2-DES nanocomposites were successfully prepared and had better adsorption effect on metal ions. The factors affecting the extraction and elution of Co and Pb were optimized, including the type of DES, pH, adsorption time, amount of adsorbent, adsorption temperature, and elution time. Under the optimum conditions, the enhancement factors (EFs) of Co and Pb were 31 and 28, the limits of detection (LODs) were 0.11 and 0.24 μg L-1, and the limits of quantification (LOQs) were 0.36 and 0.82 μg L-1, respectively. The results of Co and Pb determined by the established method were in good agreement with those of inductively coupled plasma mass spectrometry (ICP-MS), which verified the accuracy and reliability of the method.
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Affiliation(s)
- Ting Xia
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Xiaofang Yang
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Rui Zhang
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Anqi Huang
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Kan Hu
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Fangfang Hao
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Yong Liu
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Qingwen Deng
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Shengchun Yang
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China.
| | - Xiaodong Wen
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China.
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5
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Azooz EA, Tuzen M, Mortada WI, Ullah N. A critical review of selected preconcentration techniques used for selenium determination in analytical samples. Crit Rev Anal Chem 2022:1-15. [PMID: 36480234 DOI: 10.1080/10408347.2022.2153579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selenium (Se) is considered to be an essential trace element needed for all living organisms. The importance, deficiency, and toxic effects of Se mainly depend on its quantity and chemical nature. It has been observed that the inorganic versions of Se are more hazardous than the organic versions. This review is mainly focused on the application of different extraction methods used for Se extraction and determination such as microextraction, solid-phase extraction (SPE), and their modified modes in the last 12 years. The use of different dispersive medium (magnetic field, ultrasonic radiation, and vortex agitator) to enhance Se separation is also part of this review. The usage of environmentally friendly solvents such as supramolecular solvents, hydrophobic deep eutectic solvents (DESs), and ionic liquids (ILs) are also the focus of attention in this review. This review is also emphasized the application of advanced microextraction methods, particularly liquid-phase microextraction (LPME). The most recent advances in LPME extraction techniques for Se in various environmental samples, as well as their prospects, are reviewed. Additionally, a summary of cheap, simple, and accurate techniques that have not yet been used to determine small amounts of Se has been provided.
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Affiliation(s)
- Ebaa Adnan Azooz
- Chemistry Department, The Gifted Students' School in Al-Najaf, Ministry of Education, Najaf, Iraq
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Mustafa Tuzen
- Chemistry Department, Faculty of Science and Arts, Tokat Gaziosmanpasa University, Tokat, Turkey
| | - Wael I Mortada
- Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Naeem Ullah
- Chemistry Department, Faculty of Science and Arts, Tokat Gaziosmanpasa University, Tokat, Turkey
- Department of Chemistry, University of Turbat, Balochistan, Pakistan
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6
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Nakakubo K, Nishimura T, Biswas FB, Endo M, Wong KH, Mashio AS, Taniguchi T, Nishimura T, Maeda K, Hasegawa H. Speciation analysis of inorganic selenium in wastewater using a highly selective cellulose-based adsorbent via liquid electrode plasma optical emission spectrometry. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127250. [PMID: 34600387 DOI: 10.1016/j.jhazmat.2021.127250] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Speciation of selenium (Se) is typically carried out using a sophisticated technique such as ICP-MS after preconcentration using an adsorbent; however, the separation and preconcentration of inorganic Se has not been realized in the solutions containing high concentrations of SO42-. A dithiocarbamate-modified cellulose (DMC) was used in this study for the selective extraction and preconcentration of inorganic Se in wastewater, with a portable liquid electrode plasma-optical emission spectrometry (LEP-OES) being employed for quantification. DMC was found to selectively and quantitatively adsorb selenite (SeIV) over a wide range of pH (1.0-8.0); however, less than 3.0% of selenate (SeVI) was adsorbed in a pH range of 3.0-11. Quantitative extraction of SeIV was achieved even in the presence of 3.5 mol L-1 SO42-. The maximum sample volume from which 10 mg of DMC could quantitatively extract SeIV was found to be 500 mL. KOH (0.60 mL, 1.5 mol L-1) was found to quantitatively desorb SeIV retained on the adsorbent and yielded an enrichment factor of 833. The recovery of Se species from synthetic flue-gas desulfurization wastewater containing SeIV and SeVI at concentrations of 5.0 µmol L-1 was 96.2 ± 1.8% and 105.8 ± 1.8%, respectively.
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Affiliation(s)
- Keisuke Nakakubo
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
| | - Takashi Nishimura
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Foni B Biswas
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan; Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh
| | - Masaru Endo
- Daicel Corporation, 1239 Shinzaike, Aboshi-ku, Himeji-Shi, Hyogo 671-1283, Japan
| | - Kuo H Wong
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Asami S Mashio
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Tsuyoshi Taniguchi
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Tatsuya Nishimura
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
| | - Hiroshi Hasegawa
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
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7
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Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182212135. [PMID: 34831893 PMCID: PMC8623758 DOI: 10.3390/ijerph182212135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 02/07/2023]
Abstract
Speciation analysis is a key aspect of modern analytical chemistry, as the toxicity, environmental mobility, and bioavailability of elemental analytes are known to depend strongly on an element’s chemical species. Henceforth, great efforts have been made in recent years to develop methods that allow not only the determination of elements as a whole, but also each of its separate species. Environmental analytical chemistry has not ignored this trend, and this review aims to summarize the latest methods and techniques developed with this purpose. From the perspective of each relevant element and highlighting the importance of their speciation analysis, different sample treatment methods are introduced and described, with the spotlight on the use of modern nanomaterials and novel solvents in solid phase and liquid-liquid microextractions. In addition, an in-depth discussion of instrumental techniques aimed both at the separation and quantification of metal and metalloid species is presented, ranging from chromatographic separations to electro-chemical speciation analysis. Special emphasis is made throughout this work on the greenness of these developments, considering their alignment with the precepts of the Green Chemistry concept and critically reviewing their environmental impact.
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Filip J, Vinter Š, Čechová E, Sotolářová J. Materials interacting with inorganic selenium from the perspective of electrochemical sensing. Analyst 2021; 146:6394-6415. [PMID: 34596173 DOI: 10.1039/d1an00677k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Inorganic selenium, the most common form of harmful selenium in the environment, can be determined using electrochemical sensors, which are compact, fast, reliable and easy-to-operate devices. Despite progress in this area, there is still significant room for developing high-performance selenium electrochemical sensors. To achieve this, one should take into account (i) the electrochemical process that selenium undergoes on the electrode; (ii) the valence state of selenium species in the sample and (iii) modification of the sensor surface by a material with high affinity to selenium. The goal of this review is to provide a knowledge base for these issues. After the Introduction section, mechanisms and principles of the electrochemical reduction of selenium are introduced, followed by a section introducing the modification of electrodes with materials interacting with selenium and a section dedicated to speciation methods, including the reduction of non-detectable Se(VI) to detectable Se(IV). In the following sections, the main types of materials (metallic, polymers, hybrid (nano)materials…) interacting with inorganic selenium (mostly absorbents) are reviewed to show the diversity of properties that may be endowed to sensors if the materials were to be used for the modification of electrodes. These features for the main material categories are outlined in the conclusion section, where it is stated that the engineered polymers may be the most promising modifiers.
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Affiliation(s)
- Jaroslav Filip
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Štěpán Vinter
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Erika Čechová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Jitka Sotolářová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
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Chen S, Liu Y, Wang C, Yan J, Lu D. Magnetic dispersive micro-solid phase extraction coupled with dispersive liquid-liquid microextraction followed by graphite furnace atomic absorption spectrometry for quantification of Se(IV) and Se(VI) in food samples. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1539-1550. [PMID: 34157956 DOI: 10.1080/19440049.2021.1927202] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this work, magnetic dispersive micro-solid phase extraction (MDMSPE) coupled with dispersive liquid-liquid microextraction (DLLME) was developed for Se(IV) and Se(VI) followed by graphite furnace atomic absorption spectrometry. MDMSPE involved the use of magnetic ZnFe2O4 nanotubes for adsorbing Se(VI). The sorbent was isolated from aqueous phase by using an external magnetic field instead of tedious centrifugation or filtration. In the following step, Se(IV) in the upper aqueous phase of MDMSPE was enriched by DLLME. Samples were prepared with artificial gastric juice to avoid the inter-conversion of target species. The main factors affecting the determination of the analytes were studied in detail. the detection limits of this method were 1.0 and 1.3 pg mL-1 for Se(IV) and Se(VI) with relative standard deviations of 4.6% and 5.1% (c = 1.0 ng mL-1, n = 9), respectively. An enrichment factor of 200 was obtained. This method was used for the detection of Se(IV) and Se(VI) in food samples without any pre-oxidation or pre-reduction operation. A certified reference material of milk powder was analysed by this method, and the determined values were in good agreement with the certified values. Recoveries of spike experiments were in the range of 91.0-107%.
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Affiliation(s)
- Shizhong Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Yuxiu Liu
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chunlei Wang
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Juntao Yan
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Dengbo Lu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
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Preparation of environmental samples for chemical speciation of metal/metalloids: A review of extraction techniques. Talanta 2021; 226:122119. [PMID: 33676674 DOI: 10.1016/j.talanta.2021.122119] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/20/2022]
Abstract
Chemical speciation is a relevant topic in environmental chemistry since the (eco)toxicity, bio (geo)chemical cycles, and mobility of a given element depend on its chemical forms (oxidation state, organic ligands, etc.). Maintaining the chemical stability of the species and avoiding equilibrium disruptions during the sample treatment is one of the biggest challenges in chemical speciation, especially in environmental matrices where the level of concomitants/interferents is normally high. To achieve this task, strategies based on chemical properties of the species can be carried out and pre-concentration techniques are often needed due to the low concentration ranges of many species (μg L-1 - ng L-1). Due to the significance of the topic and the lack of reviews dealing with sample preparation of metal (loid)s (usually, sample preparation reviews focus on the total metal content), this work is presented. This review gives an up-to-date overview of the most common sample preparation techniques for environmental samples (water, soil, and sediments), with a focus on speciation of metal/metalloids and determination by spectrometric techniques. Description of the methods is given, and the most recent applications (last 10 years) are presented.
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Pyrzynska K. Nanomaterials in speciation analysis of metals and metalloids. Talanta 2020; 212:120784. [PMID: 32113547 DOI: 10.1016/j.talanta.2020.120784] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/22/2020] [Accepted: 01/25/2020] [Indexed: 02/07/2023]
Abstract
Nanomaterials have draw extensive attention from the scientists in recent years mainly due to their unique and attractive thermal, mechanical and electronic properties, as well as high surface to volume ratio and the possibility for surface functionalization. Whereas mono functional nanomaterials providing a single function, the preparation of core/shell nanoparticles allows different properties to be combined in one material. Their properties have been extensively exploited in different extraction techniques to improve the efficiency of separation and preconcentration, analytical selectivity and method reliability. The aim of this paper is to provide an updated revision of the most important features and application of nanomaterials (metallic, silica, polymeric and carbon-based) for solid phase extraction and microextraction techniques in speciation analysis of some metals and metalloids (As, Cr, Sb, Se). Emphasis will be placed on the presentation of the most representative works published in the last five years (2015-2019).
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Affiliation(s)
- Krystyna Pyrzynska
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-93, Warsaw, Poland.
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12
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Acikkapi AN, Tuzen M, Hazer B. A newly synthesized graft copolymer for magnetic solid phase microextraction of total selenium and its electrothermal atomic absorption spectrometric determination in food and water samples. Food Chem 2019; 284:1-7. [DOI: 10.1016/j.foodchem.2019.01.091] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 01/08/2019] [Accepted: 01/12/2019] [Indexed: 11/26/2022]
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13
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Llaver M, Wuilloud RG. Separation and preconcentration of inorganic Se species in tap and natural waters using unfunctionalized nanosilica as sorption material in dispersive micro-solid phase extraction. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.066] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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3D-printed, TiO2 NP–incorporated minicolumn coupled with ICP-MS for speciation of inorganic arsenic and selenium in high-salt-content samples. Mikrochim Acta 2018; 185:268. [DOI: 10.1007/s00604-018-2812-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/14/2018] [Indexed: 10/17/2022]
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15
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A nanocomposite consisting of MIL-101(Cr) and functionalized magnetite nanoparticles for extraction and determination of selenium(IV) and selenium(VI). Mikrochim Acta 2018; 185:196. [DOI: 10.1007/s00604-018-2731-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/10/2018] [Indexed: 10/17/2022]
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16
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Cui W, Li P, Wang Z, Zheng S, Zhang Y. Adsorption study of selenium ions from aqueous solutions using MgO nanosheets synthesized by ultrasonic method. JOURNAL OF HAZARDOUS MATERIALS 2018; 341:268-276. [PMID: 28797943 DOI: 10.1016/j.jhazmat.2017.07.073] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/28/2017] [Accepted: 07/31/2017] [Indexed: 05/26/2023]
Abstract
MgO nanosheets with thickness ranges of 3-10 molecule layers and high specific area (166.44m2g-1) were successfully fabricated by an ultrasound-assisted exfoliation method and used as adsorbent for the removal of both selenite (Se(IV)) and selenate (Se(VI)) from aqueous solutions. The resulting MgO nanosheets displayed high maximum adsorption capacities of 103.52 and 10.28mgg-1 for Se(IV) and Se(VI), respectively. ATR-FTIR and XPS spectroscopic results suggested that both Se(IV) and Se(VI) formed inner-sphere surface complexes on MgO nanosheets under the present experimental conditions. Furthermore, high adsorption capacity for Se(IV/VI) in the presence of coexistent anions (SO42-, PO43-, Cl-, and F-) and efficient regeneratability of adsorbent by NaOH solution were observed in the competitive adsorption and regeneration steps. The simple one-step synthesis process of MgO nanosheets and high adsorption capacities offer a promising method for Se(IV/VI) removal in water treatment.
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Affiliation(s)
- Wenwen Cui
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, People's Republic of China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Shijingshan District, Beijing, 100049, People's Republic of China
| | - Ping Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, People's Republic of China.
| | - Zheming Wang
- Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Shili Zheng
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, People's Republic of China
| | - Yi Zhang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No.1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, People's Republic of China
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17
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A systematic review and meta-analysis of voltammetric and optical techniques for inorganic selenium determination in water. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Nozohour Yazdi M, Yamini Y. Inorganic selenium speciation in water and biological samples by three phase hollow fiber-based liquid phase microextraction coupled with HPLC-UV. NEW J CHEM 2017. [DOI: 10.1039/c6nj03821b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A rapid, sensitive, high clean-up and economic three phase hollow fiber liquid phase microextraction method followed by HPLC-UV was applied for speciation of inorganic selenium in water and biological samples.
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Affiliation(s)
| | - Yadollah Yamini
- Department of Chemistry
- Faculty of Sciences
- Tarbiat Modares University
- Tehran
- Iran
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19
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Selenium Speciation in Rice Samples by Magnetic Ionic Liquid-Based Up-and-Down-Shaker-Assisted Dispersive Liquid-Liquid Microextraction Coupled to Graphite Furnace Atomic Absorption Spectrometry. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0727-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Nyaba L, Matong JM, Dimpe KM, Nomngongo PN. Speciation of inorganic selenium in environmental samples after suspended dispersive solid phase microextraction combined with inductively coupled plasma spectrometric determination. Talanta 2016; 159:174-180. [PMID: 27474295 DOI: 10.1016/j.talanta.2016.06.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/09/2016] [Accepted: 06/10/2016] [Indexed: 10/21/2022]
Abstract
A rapid and effective suspended dispersive solid phase microextraction (SDSPME) was developed for the speciation of inorganic selenium using alumina nanoparticles functionalized with Aliquat-336. The target analytes were preconcentrated and determined by inductively coupled plasma optical emission spectrometry. Alumina nanoparticles were characterized using XRD, BET, SEM and EDX while the functionalized nano-Al2O3 was characterized by FTIR. The effect of pH of the solution on speciation Se in water samples was optimized separately. It was observed that when the pH values of sample solution ranged from 2.0 to 7.0, successful separation of inorganic Se species was achieved. The percentage recoveries for Se (IV) and Se (VI) were >90% and 5%, respectively. The two-level fractional factorial design was used to optimize experimental parameters affecting the preconcentration system. Under optimal conditions, the enrichment factor (EF), limit of detection (LOD) and limit of quantification for Se (IV) were found to be 850, 1.4ngL(-1,) and 4.6ngL(-1), respectively. Furthermore, intra-day and inter-day precisions expressed in terms of relative standard deviation (RSD) were found to be 1.9% and 3.3%, respectively. The effect of coexisting ions on the recovery of Se (IV) was investigated. The accuracy of the developed method was checked by analysis of standard reference material (NIST SRM 1643e). The optimized method was applied for the determination of targets in surface water samples.
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Affiliation(s)
- Luthando Nyaba
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa
| | - Joseph M Matong
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa
| | - K Mogolodi Dimpe
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa
| | - Philiswa N Nomngongo
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa.
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