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Rahman N, Ahmad I. Coordination polymer gel mediated spectrophotometric, ICP-AES and spectrofluorimetric methods for trace As(III) determination in water and food samples. CHEMOSPHERE 2024; 351:141272. [PMID: 38262491 DOI: 10.1016/j.chemosphere.2024.141272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/11/2024] [Accepted: 01/19/2024] [Indexed: 01/25/2024]
Abstract
Herein, a coordination polymer gel is proposed for the determination of As(III) in real samples through multispectroscopic techniques viz. spectrophotometry, spectrofluorimetry, and inductively coupled plasma atomic emission spectroscopy (ICP-AES). Taguchi L32 (46 21) design and adaptive neuro fuzzy inference system (ANFIS) optimized the controllable factors affecting the extraction yielding an experimental S/N ratio of 39.94 dB. The fluorescence quenching (KSV = 2.63 × 106 L mol-1) was static with photoelectron transfer being the main mechanism confirmed by the density functional theory calculations. The limits of detection (LODs), limits of quantification (LOQs) and linear ranges were 0.038 μg L-1, 0.13 μg L-1 and 1.67-116.67 μg L-1, 0.40 μg L-1, 1.21 μg L-1 and 1.67-33.33 μg L-1, 1.07 μg L-1, 3.24 μg L-1 and 3.32-35.37 μg L-1 for the developed enrichment coupled ICP-AES, spectrophotometry and fluorescence sensing methods. Among these methods, the enrichment - ICP-AES method has the lowest LOD, LOQ and the widest linear range followed by the enrichment - spectrophotometry and fluorescene sensing methods. Spectrofluorimetry offers high sensitivity, selectivity, and possible real time monitoring, spectrophotometry provides a cost-effective and versatile option, while ICP-AES manifests multi-element analysis with high sensitivity and low interference. The developed methods were validated and employed for the successful determination of trace As(III) in real samples. The employment of these methods enhances the overall analytical capability for a wide range of sample types and concentrations.
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Affiliation(s)
- Nafisur Rahman
- Department of Chemistry Aligarh Muslim University, Aligarh-202002, India.
| | - Izhar Ahmad
- Department of Chemistry Aligarh Muslim University, Aligarh-202002, India
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Luo ML, Chen GY, Wang JL, Chai TQ, Qian ZM, Li WJ, Yang FQ. Detection of Arsenic(V) by Fluorescence Sensing Based on Chlorin e6-Copper Ion. Molecules 2024; 29:1015. [PMID: 38474527 DOI: 10.3390/molecules29051015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
The high toxicity of arsenic (As) can cause irreversible harm to the environment and human health. In this study, the chlorin e6 (Ce6), which emits fluorescence in the infrared region, was introduced as the luminescence center, and the addition of copper ion (Cu2+) and As(V) provoked a regular change in fluorescence at 652 nm, whereas that of As(III) was 665 nm, which was used to optionally detect Cu2+, arsenic (As(III), and As(V)). The limit of detection (LOD) values were 0.212 μM, 0.089 ppm, and 1.375 ppb for Cu2+, As(III), and As(V), respectively. The developed method can be used to determine Cu2+ and arsenic in water and soil with good sensitivity and selectivity. The 1:1 stoichiometry of Ce6 with Cu2+ was obtained from the Job plot that was developed from UV-visible spectra. The binding constants for Cu2+ and As(V) were established to be 1.248 × 105 M-1 and 2.35 × 1012 M-2, respectively, using B-H (Benesi-Hildebrand) plots. Fluorescence lifetimes, B-H plots, FT-IR, and 1H-NMR were used to postulate the mechanism of Cu2+ fluorescence quenching and As(V) fluorescence restoration and the interactions of the two ions with the Ce6 molecule.
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Affiliation(s)
- Mao-Ling Luo
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Jia-Li Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Tong-Qing Chai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Zheng-Ming Qian
- Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China
| | - Wen-Jia Li
- Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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Zhang M, Dalapati R, Shi J, Liao C, Tian Q, Wang C, Yang X, Chen S, Porter MD, Zang L. Fluorescent sensor based on solid-phase extraction with negligible depletion: A proof-of-concept study with amines as analytes. Anal Chim Acta 2023; 1245:340828. [PMID: 36737131 DOI: 10.1016/j.aca.2023.340828] [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: 09/07/2022] [Revised: 12/21/2022] [Accepted: 01/11/2023] [Indexed: 01/14/2023]
Abstract
This paper describes the development and proof-of-concept testing of an easy-to-use trace analysis technique, namely F-SPE, by coupling fluorescent sensor with solid phase extraction (SPE). F-SPE is a two-step methodology that concentrates an analyte from a liquid sample onto a fluorophore-modified membrane and measures the amount of analyte from the extent the extracted analyte quenches the emission of the fluorophore. By applying the principle of negligible depletion (ND) intrinsic to SPE, the procedure of F-SPE for analyzing a sample can be markedly simplified while maintaining the ability to detect analytes at low limits of detection (LOD). The merits of this approach are demonstrated by impregnating a SPE membrane with a perylene diimide (PDI) fluorophore, N,N'-di(nonyldecyl)-perylene-3,4,9,10-tetracarboxylic diimide (C9/9-PDI), for the low-level detection of organic amines (e.g., aniline) and amine-containing drugs (e.g., Kanamycin). The sensing mechanism is based on the donor-acceptor quenching of PDI by amines, which, when coupled with the concentrative nature of SPE, yields LODs for aniline and Kanamycin of 67 nM (∼6 ppb) and 32 nM (∼16 ppb), respectively.
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Affiliation(s)
- Miao Zhang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Rana Dalapati
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Jiangfan Shi
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Chenglong Liao
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Qingyun Tian
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Xiaomei Yang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA
| | - Shuai Chen
- Jiangxi Engineering Laboratory of Waterborne Coating, Jiangxi, Nanchang, 330013, China.
| | - Marc D Porter
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Chemical Engineering, University of Utah, Salt Lake City, UT, 84112, USA.
| | - Ling Zang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA.
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Savitha R, Mallelwar P, Mohanraj M, Renganathan T, Pushpavanam S. Adsorptive preconcentration integrated with colorimetry for ultra-sensitive detection of lead and copper. Anal Bioanal Chem 2022; 414:4089-4102. [DOI: 10.1007/s00216-022-04056-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 11/01/2022]
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Adsorptive colorimetric determination of chromium(VI) ions at ultratrace levels using amine functionalized mesoporous silica. Sci Rep 2022; 12:5673. [PMID: 35383234 PMCID: PMC8983689 DOI: 10.1038/s41598-022-09689-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 02/15/2022] [Indexed: 11/08/2022] Open
Abstract
There is an urgent need for a rapid, affordable and sensitive analytical method for periodic monitoring of heavy metals in water bodies. Herein, we report for the first time a versatile method for ultratrace level metal detection based on colorimetric sensing. The method integrates preconcentration using a nanomaterial with a colorimetric assay performed directly on the metal-enriched nanomaterial surface. This method circumvents the need for tedious sample pre-processing steps and the complex development of colorimetric probes, thereby reducing the complexity of the analytical procedure. The efficacy of the proposed method was demonstrated for chromium(VI) ions detection in water samples. Amine functionalized mesoporous silica (AMS) obtained from a one-pot synthesis was utilized as a pre-concentration material. The structural and chemical analysis of AMS was conducted to confirm its physico-chemical properties. The pre-concentration conditions were optimized to maximise the colorimetric signal. AMS exhibited a discernible colour change from white to purple (visible to the naked eye) for trace Cr(VI) ions concentration as low as 0.5 μg L-1. This method shows high selectivity for Cr(VI) ions with no colorimetric signal from other metal ions. We believe our method of analysis has a high scope for de-centralized monitoring of organic/inorganic pollutants in resource-constrained settings.
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Disposable optical sensor for Al(III) ions determination by coupled colorimetric solid-phase extraction-reflectance spectroscopy in leachates from cookware, antacids and hygienic care products. Talanta 2019; 205:120102. [DOI: 10.1016/j.talanta.2019.06.102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/24/2019] [Accepted: 06/27/2019] [Indexed: 12/14/2022]
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Ren Z, He H, Fan Y, Chen C, Zuo Z, Deng J. Research Progress on the Toxic Antagonism of Selenium Against Mycotoxins. Biol Trace Elem Res 2019; 190:273-280. [PMID: 30267312 DOI: 10.1007/s12011-018-1532-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/24/2018] [Indexed: 12/21/2022]
Abstract
Animal feed is prone to becoming infected with molds during production and storage, resulting in secondary metabolite mycotoxins, such as aflatoxin B1 (AFB1), T-2 toxins, deoxynivalenol (DON), and ochratoxin A (OTA), which are harmful to humans and animals. Selenium is an essential trace element for humans and animals, and it is also an effective antioxidant. Many studies have shown that selenium can reduce the damage caused by mycotoxins in animals. This article reviews the current literature on the antagonistic effects of selenium on AFB1, T-2, DON, and OTA toxicity.
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Affiliation(s)
- Zhihua Ren
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sichuan Province Key Laboratory of Animal Disease & Human Health, Chengdu, China
- Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Hongyi He
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sichuan Province Key Laboratory of Animal Disease & Human Health, Chengdu, China
- Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Yu Fan
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sichuan Province Key Laboratory of Animal Disease & Human Health, Chengdu, China
- Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Changhao Chen
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sichuan Province Key Laboratory of Animal Disease & Human Health, Chengdu, China
- Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sichuan Province Key Laboratory of Animal Disease & Human Health, Chengdu, China
- Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.
- Sichuan Province Key Laboratory of Animal Disease & Human Health, Chengdu, China.
- Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China.
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Vera R, Fontàs C, Anticó E. Titanium dioxide solid phase for inorganic species adsorption and determination: the case of arsenic. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:10939-10948. [PMID: 27655617 DOI: 10.1007/s11356-016-7667-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 09/09/2016] [Indexed: 06/06/2023]
Abstract
We have evaluated a new titanium dioxide (Adsorbsia As600) for the adsorption of both inorganic As (V) and As (III) species. In order to characterize the sorbent, batch experiments were undertaken to determine the capacities of As (III) and As (V) at pH 7.3, which were found to be 0.21 and 0.14 mmol g-1, respectively. Elution of adsorbed species was only possible using basic solutions, and arsenic desorbed under batch conditions was 50 % when 60 mg of loaded titanium dioxide was treated with 0.5 M NaOH solution. Moreover, its use as a sorbent for solid-phase extraction and preconcentration of arsenic species from well waters has been investigated, without any previous pretreatment of the sample. Solid-phase extraction was implemented by packing several minicolumns with Adsorbsia As600. The method has been validated showing good accuracy and precision. Acceptable recoveries were obtained when spiked waters at 100-200 μg L-1 were measured. The presence of major anions commonly found in waters did not affect arsenic adsoption, and only silicate at 100 mg L-1 level severely competed with arsenic species to bind to the material. Finally, the measured concentrations in water samples containing arsenic from the Pyrinees (Catalonia, Spain) showed good agreement with the ICP-MS results.
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Affiliation(s)
- R Vera
- Department of Chemistry, University of Girona, Campus Montilivi, 17003, Girona, Spain
| | - C Fontàs
- Department of Chemistry, University of Girona, Campus Montilivi, 17003, Girona, Spain
| | - E Anticó
- Department of Chemistry, University of Girona, Campus Montilivi, 17003, Girona, Spain.
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Ali J, Tuzen M, Kazi TG, Hazer B. Inorganic arsenic speciation in water samples by miniaturized solid phase microextraction using a new polystyrene polydimethyl siloxane polymer in micropipette tip of syringe system. Talanta 2016; 161:450-458. [PMID: 27769431 DOI: 10.1016/j.talanta.2016.08.075] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/24/2016] [Accepted: 08/28/2016] [Indexed: 11/29/2022]
Abstract
The polymer, polystyrene polydimethyl siloxane was loaded into the micropipette tip of the syringe system as an adsorbent to developed miniaturized solid phase microextraction. Standard solutions of arsenate and arsenite were passed through the adsorbent loaded in micropipette tip to check the adsorption behaviors. It was observed that arsenate adsorbed on the polystyrene polydimethyl siloxane in the pH rang of 6-8, while arsenite was directly passed through the micropipette tip of syringe system. The adsorbed arsenate in micropipette tip of syringe system were eluted by 1.0M hydrochloric acid. The total inorganic arsenic contents were obtained by the addition of oxidizing agent potassium permanganate into the studied samples before passing to the micropipette tip of syringe system. Arsenite concentration in water samples were measured by subtracting arsenate from total inorganic arsenic concentration. Different characteristics which effect the determination of arsenate specie like amount of adsorbent, adsorption capacity, pH, pulled and pushed cycles for adsorption and desorption, volume of sample, eluent type and it volume were also studied in detail. Enrichment factor and detection limit of arsenate by desired method were 218 and 6.9ngL-1 respectively. The relative standard deviation was 4.1% (n=10, C=0.12µgL-1). Accuracy of the desired technique was confirmed by analysis of the CRMs (Lake Ontario Water TM-28.3 and Riverine Water NRCC-SLRS-4). Desired technique was significantly useful for determination of the total arsenic, arsenate, and arsenite contents in different natural water samples.
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Affiliation(s)
- Jamshed Ali
- Gaziosmanpaşa University, Faculty of Science and Arts, Chemistry Department, Tokat 60250, Turkey; National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Mustafa Tuzen
- Gaziosmanpaşa University, Faculty of Science and Arts, Chemistry Department, Tokat 60250, Turkey.
| | - Tasneem G Kazi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Baki Hazer
- Bulent Ecevit University, Chemistry Department, Zonguldak 67100, Turkey
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Response surface methodology based on central composite design as a chemometric tool for optimization of dispersive-solidification liquid–liquid microextraction for speciation of inorganic arsenic in environmental water samples. Talanta 2014; 123:25-31. [DOI: 10.1016/j.talanta.2013.11.071] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 11/25/2013] [Accepted: 11/26/2013] [Indexed: 11/21/2022]
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Separation/Preconcentration and Speciation Analysis of Trace Amounts of Arsenate and Arsenite in Water Samples Using Modified Magnetite Nanoparticles and Molybdenum Blue Method. J CHEM-NY 2014. [DOI: 10.1155/2014/248065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A new, simple, and fast method for the separation/preconcentration and speciation analysis of arsenate and arsenite ions using cetyltrimethyl ammonium bromide immobilized on alumina-coated magnetite nanoparticles (CTAB@ACMNPs) followed by molybdenum blue method is proposed. The method is based on the adsorption of arsenate on CTAB@ACMNPs. Total arsenic in different samples was determined as As(V) after oxidation of As(III) to As(V) using potassium permanganate. The arsenic concentration has been determined by UV-Visible spectrometric technique based on molybdenum blue method and amount of As(III) was calculated by subtracting the concentration of As(V) from total arsenic concentration. MNPs and ACMNPs were characterized by VSM, XRD, SEM, and FT-IR spectroscopy. Under the optimal experimental conditions, the preconcentration factor, detection limit, linear range, and relative standard deviation (RSD) of arsenate were 175 (for 350 mL of sample solution), 0.028 μg mL−1, 0.090–4.0 μg mL−1, and 2.8% (for 2.0 μg mL−1,n=7), respectively. This method avoided the time-consuming column-passing process of loading large volume samples in traditional SPE through the rapid isolation of CTAB@ACMNPs with an adscititious magnet. The proposed method was successfully applied to the determination and speciation of arsenic in different water samples and suitable recoveries were obtained.
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Espada-Bellido E, Galindo-Riaño MD, García-Vargas M, Narayanaswamy R. Colorimetric solid-phase extraction method for Cu(II) ion determination using 2-hydroxybenzaldehyde benzoylhydrazone as sensing reagent. APPLIED SPECTROSCOPY 2014; 68:413-420. [PMID: 24694697 DOI: 10.1366/13-07126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new sensor based on the use of 2-hydroxybenzaldehyde benzoylhydrazone as a colorimetric reagent immobilized onto styrenedivinylbenzene disks has been carried out for the determination of Cu(II) ions within several minutes. The sensor is designed on a rapid and easy two-step procedure: (1) the extraction of Cu(II) ions onto a disk loaded with the copper-selective colorimetric reagent and (2) the determination of the complexed analyte directly on the surface of the disk using diffuse reflectance measurements at 400 nm. The color of the disk changed from white to green in the presence of Cu(II) ions. The work herein details the optimization of the sensing system employing a fractional factorial design 3(3-1) considering three variables (pH, immobilization time, and amount of ligand immobilized onto the disk). The Pareto chart and response surfaces in a spherical domain indicated that the optimum conditions for the sensing of copper ions were pH = 7, with a ligand immobilization time of 10 min and 6.25 mg of reagent loaded onto the disk. Under the optimum conditions, the analytical parameters of the proposed method were determined. The calibration graph was linear over the range of 0 to 2.5 mg L(-1) of Cu(II) with a detection limit of 0.21 mg L(-1). The relative standard deviation for six measurements of 1 mg L(-1) of Cu(II) was found to be 4.87%. The interference from inorganic salts and other metals was found not to be of major concern when monitoring copper ions in water samples. The simplicity and rapidity of this technique make it convenient and amenable for on-site and routine analysis.
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Affiliation(s)
- Estrella Espada-Bellido
- Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, P.O. Box 11510, Campus Río S. Pedro, Puerto Real, Cadiz 11510 Spain
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Naked-eye sensor for rapid determination of mercury ion. Talanta 2013; 116:563-8. [DOI: 10.1016/j.talanta.2013.07.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 07/11/2013] [Accepted: 07/16/2013] [Indexed: 11/20/2022]
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