Factorial design optimization of experimental variables in the on-line separation/preconcentration of copper in water samples using solid phase extraction and ICP-OES determination

Escudero, Luis A.; Cerutti, Soledad; Olsina, Roberto A.; Salonia, José A.; Gásquez, José A.

doi:10.1016/j.jhazmat.2010.07.014

Cited by 47 publications

(19 citation statements)

References 43 publications

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“…The fitness of the given models can be tested by ANOVA statistics (R 2 , adjusted R 2 , F-test and t-test) and residuals analysis. As Bezera et al [180] introduced RSM as a tool for optimization in analytical chemistry, this kind of design experiment has been widely used by different researchers in order to optimization of water and soil remediation [166,173,[181][182][183] or designing different types of water filters [184,185]. The experimental design and statistical analysis of the data were done by Design-expert10 statistical software.…”

Section: Simulating Testing Practice: Rsm Modelmentioning

confidence: 99%

Making Fe0-Based Filters a Universal Solution for Safe Drinking Water Provision

et al. 2017

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Metallic iron (Fe 0 )-based filtration systems have the potential to significantly contribute to the achievement of the United Nations (UN) Sustainable Development Goals (SDGs) of substantially improving the human condition by 2030 through the provision of clean water. Recent knowledge on Fe 0 -based safe drinking water filters is addressed herein. They are categorized into two types: Household and community filters. Design criteria are recalled and operational details are given. Scientists are invited to co-develop knowledge enabling the exploitation of the great potential of Fe 0 filters for sustainable safe drinking water provision (and sanitation).

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Section: Simulating Testing Practice: Rsm Modelmentioning

confidence: 99%

Making Fe0-Based Filters a Universal Solution for Safe Drinking Water Provision

et al. 2017

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“…However, it is known that biological membranes can be altered by dissolved copper contents being toxic to living organisms. Thus, even low copper levels in the human body may cause gastrointestinal diseases, such as diarrhea, stomach aches, vomiting and dizziness and high levels, associated with long-term exposure, may cause kidney or liver damages and mental disorders, such as Alzheimer's disease [1,2]. People that suffers from Wilson's Disease should avoid the ingestion of drinking water and food containing copper.…”

Section: Introductionmentioning

confidence: 99%

Flow injection on-line minicolumn preconcentration and determination of trace copper ions using an alumina/titanium oxide grafted silica matrix and FAAS

et al. 2012

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We describe the analytical performance of a hybrid material composed of SiO 2 , Al 2 O 3 and TiO 2 . It was prepared by a sol-gel process and can act as an adsorbent in the continuous-flow enrichment of copper. A minicolumn was packed with the material, copper ions are adsorbed at pH 9.13, then eluted with 1.0 mol L −1 nitric acid, and determined by FAAS. The material was characterized by infrared spectroscopy, scanning electron and energy dispersive spectroscopy, energy dispersive X-ray fluorescence analysis, powder Xray diffraction, and specific surface area analysis. No significant interference was observed for most ions in up to copper/ interferent ratios of 1:100 and of 1:500 in case of Ca(II), Ba (II), and Mg(II). The breakthrough capacity is 1.4 mg g −1 under dynamic conditions. The limits of detection and of quantification are 0.50 and 1.4 μg L −1 , respectively, and the calibration plot is linear in the range from 5.0 to 245.0 μg L −1 (r00.999). The relative standard deviation is 3.20 (for n07 and at a Cu(II) concentration of 10 μg L −1 ). The method was applied to the determination of trace copper ions in water, vegetable and alcohol fuel samples.

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“…To achieve these aims, various techniques, including liquid-liquid extraction (LLE), 16 cloud point extraction (CPE), micelle-mediated extraction, 17 membrane extraction (i.e., ultrafiltration and dialysis), 18 and solid-phase extraction (SPE), 19 have been developed for the extraction and preconcentration of various analytes. However, trends in analytical chemistry are the development of previous methods or introducing new techniques with improved selectivity, sensitivity and also miniaturization of chemical analysis methods.…”

Section: Introductionmentioning

confidence: 99%

On-line Flow-injection Liquid-phase Microextraction and Spectrophotometric Determination of Traces of Copper(II) with Trithia-9-crown-3 as Complexing Agent

2013

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A novel on-line flow-injection liquid-phase microextraction (FI-LPME) and spectrophotometric determination of the Cu 2+ ion using trithia-9-crown-3 (TT9C3) as a sensitive and selective charge transfer complexing agent was developed. After phase segmentation by pulsating motions of a peristaltic pump, the phase separation takes place by the aid of gravitation forces. The optimum values of the pH (= 5 of phosphate buffer) and ionic strength (5 mM Na2SO4) of the solution, amount of ligand (2.0 × 10 -3 mol L -1 ), nature of the counter ion (10 mM SDS), volume of the organic solvent (150 μL), coil length (3 m) and extraction time (2 min) for an efficient extraction were determined. The calibration curve was found to be linear over a concentration range of 0.008 -4.2 μg mL -1 (R 2 = 0.9985) with a limit of detection of 0.37 ng mL -1 . The enrichment factor and relative standard deviation (n = 7) were 16 and 5.7%, respectively. Finally, the proposed method was applied to the determination of copper(II) as an impurity in the several commercial metallic salts.

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Factorial design optimization of experimental variables in the on-line separation/preconcentration of copper in water samples using solid phase extraction and ICP-OES determination

Cited by 47 publications

References 43 publications

Making Fe0-Based Filters a Universal Solution for Safe Drinking Water Provision

Making Fe0-Based Filters a Universal Solution for Safe Drinking Water Provision

Flow injection on-line minicolumn preconcentration and determination of trace copper ions using an alumina/titanium oxide grafted silica matrix and FAAS

On-line Flow-injection Liquid-phase Microextraction and Spectrophotometric Determination of Traces of Copper(II) with Trithia-9-crown-3 as Complexing Agent

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