Methyl benzoate as a non-halogenated extraction solvent for dispersive liquid–liquid microextraction: Application to the preconcentration of copper(ii) with 1-nitroso-2-naphthol

Kagaya, Shigehiro; Yoshimori, Torajiro

doi:10.1039/c2ay25823d

Cited by 12 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, emulsion polymerization, which is a radical polymerization method, offers high molecular weight polymers with no decrease in the polymerization rate. 1 In the eld of analytical chemistry, a dispersive liquid-liquid microextraction (DLLME) was recently reported, [2][3][4][5][6][7] and a technique for surfactant-assisted emulsication has been applied for assisting dispersion. 6,7 Analytical methods such as microscopy [8][9][10] and light scattering 8 are oen used as an evaluation technique for an emulsion.…”

Section: Introductionmentioning

confidence: 99%

Laser ionization time-of-flight mass spectrometry for the evaluation of a local microenvironment in an emulsion

2016

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Laser ionization time-of-flight mass spectrometry for the evaluation of a local microenvironment in an emulsion

2016

View full text Add to dashboard Cite

show abstract

“…The elements in the solution were determined using ICP-AES. An artificial seawater-based test solution prepared according to the previous report 5,29,32,33 was also used for investigating the effect of coexisting ions.…”

Section: Solid-phase Extraction Of Trace Elementsmentioning

confidence: 99%

Potential of Carboxymethylated Polyallylamine as a Functional Group on Chelating Resin for Solid-Phase Extraction of Trace Elements

et al. 2020

Self Cite

View full text Add to dashboard Cite

New chelating resins immobilizing carboxymethylated polyallylamine (CM-PAA) were prepared by immobilizing PAAs with some molecular weights on methacrylate resins and then carboxymethylating a part of amino groups in the PAAs using various amounts of sodium monochloroacetate. The molecular weight of PAA barely affected both the amount of PAA immobilized on the resin and the relationship between the carboxymethylation (CM) rate and the ratio of the amount of monochloroacetate used in the CM step. The selectivity of CM-PAA resin for solid-phase extraction of trace elements was almost the same as that of a resin immobilizing carboxylymethylated polyethyleneimine; 10 elements, namely Cd, Co, Cu, Fe, Mo, Ni, Pb, Ti, V, and Zn, could be quantitatively recovered over a wide pH range and alkali and alkaline earth elements were scarcely extracted under acidic and neutral conditions. The CM-PAA resin was applicable to the separation and preconcentration of the elements in a certified reference material (Waste Water, EU-L-1) and a real environmental water sample (ground water). Keywords Chelating resin immobilizing carboxymethylated polyallylamine; solid-phase extraction; trace element; selectivity; environmental water sample acid, namely NOBIAS Chelate PA-1 (Hitachi High-Tech Fielding), 5-19 InertSep ME-2 (GL Science), 20 and Presep PolyChelate (FUJIFILM Wako Pure Chemical), 5,13,21-28 have been developed and the application of these resins for solid-phase extraction of trace elements in environmental samples has recently increased. These resins scarcely extract alkali and alkaline earth elements, which are sometimes contained at high concentration in various environmental samples and are often interfered with the determination of trace elements using atomic spectroscopy, under acidic and neutral conditions. 5,20 The selectivity of such chelating resins has been studied using chelating resins immobilizing Analytical Sciences

show abstract

“…To the best of our knowledge, the new development of green analytical technology based microextraction has not received much concern. In this sense, there has only one paper published involving the application of methyl benzoate as an extraction solvent for a conventional DLLME of copper(II) in water samples . Very recently, the useful applications of ultrasonic irradiation and vortex agitation to enhance the efficiency of solvent microextraction in various sample matrices have also been reviewed such as the application for organophosphate pesticide analysis in water and wine samples and analysis of glucocorticoids in water samples .…”

Section: Introductionmentioning

confidence: 99%

Alternative solvent-based methyl benzoate vortex-assisted dispersive liquid-liquid microextraction for the high-performance liquid chromatographic determination of benzimidazole fungicides in environmental water samples

Santaladchaiyakit

Srijaranai

2014

J. Sep. Science

View full text Add to dashboard Cite

Vortex-assisted dispersive liquid-liquid microextraction using methyl benzoate as an alternative extraction solvent for extracting and preconcentrating three benzimidazole fungicides (i.e., carbendazim, thiabendazole, and fluberidazole) in environmental water samples before high-performance liquid chromatographic analysis has been developed. The selected microextraction conditions were 250 μL of methyl benzoate containing 300 μL of ethanol, 1.0% w/v sodium acetate, and vortex agitation speed of 2100 rpm for 30 s. Under optimum conditions, preconcentration factors were 14.5-39.0 for the target fungicides. Limits of detection were obtained in the range of 0.01-0.05 μg/L. The proposed method was then applied to surface water samples and the recovery evaluations at three spiked concentration levels of 5, 30, and 50 μg/L were obtained in the range of 77.4-110.9% with the relative standard deviation <7.4%. The present method was simple, rapid, low cost, sensitive, environmentally friendly, and suitable for the trace analysis of the studied fungicides in environmental water samples.

show abstract

Methyl benzoate as a non-halogenated extraction solvent for dispersive liquid–liquid microextraction: Application to the preconcentration of copper(ii) with 1-nitroso-2-naphthol

Cited by 12 publications

References 20 publications

Laser ionization time-of-flight mass spectrometry for the evaluation of a local microenvironment in an emulsion

Laser ionization time-of-flight mass spectrometry for the evaluation of a local microenvironment in an emulsion

Potential of Carboxymethylated Polyallylamine as a Functional Group on Chelating Resin for Solid-Phase Extraction of Trace Elements

Alternative solvent-based methyl benzoate vortex-assisted dispersive liquid-liquid microextraction for the high-performance liquid chromatographic determination of benzimidazole fungicides in environmental water samples

Contact Info

Product

Resources

About