Emerging ionic liquid-based techniques for total-metal and metal-speciation analysis

Martinis, Estefanía Mabel; Bertón, Paula; Monasterio, Romina Paula; Wuilloud, Rodolfo G.

doi:10.1016/j.trac.2010.07.013

Cited by 93 publications

(51 citation statements)

References 66 publications

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“…Among the liquid phase microextraction techniques (Fig. 1), the dispersive liquid-liquid microextraction technique was a favorable technique for preconcentration and separation of selenium because it offers low solvent consumption [4], good extraction efficiency [11], a short time to reach the equilibrium state [11], the option to perform in batch mode [12], high recovery rates, relatively high enrichment, and environmental compatibility [13].…”

Section: Selenium Lpme Coupled With Atomic Absorption Spectroscopy (Aas)mentioning

confidence: 99%

Recent Microextraction Techniques for Determination and Chemical Speciation of Selenium

et al. 2017

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Abstract:Research designed to improve extraction has led to the development of microextraction techniques (ME), which involve simple, low cost, and effective preconcentration of analytes in various matrices. This review is concerned with the principles and theoretical background of ME, as well as the development of applications for selenium analysis during the period from 2008 to 2016. Among all ME, dispersive liquid-liquid microextraction was found to be most favorable for selenium. On the other hand, atomic absorption spectrometry was the most frequently used instrumentation. Selenium ME have rarely been coupled to spectrophotometry and X-ray spectrophotometry methods, and there is no published application of ME with electrochemical techniques. We strongly support the idea of using a double preconcentration process, which consists of microextraction prior to preconcentration, followed by selenium determination using cathodic stripping voltammetry (ME-CSV). More attention should focus on the development of accurate, precise, and green methods for selenium analysis.

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Section: Selenium Lpme Coupled With Atomic Absorption Spectroscopy (Aas)mentioning

confidence: 99%

Recent Microextraction Techniques for Determination and Chemical Speciation of Selenium

et al. 2017

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“…The first report of the use of an IL for LLME was published in 2003 [88]. The number of papers on IL-LLME studies has increased explosively [36,37,39]. LLME is categorized according to phase separation technique.…”

Section: Use Of Ionic Liquid Chelate Extraction For Liquid-liquid Micmentioning

confidence: 99%

“…The use of ILs in solvent extraction was reported for organic materials by Huddleston et al in 1998 [23] and for metal cations by Dai et al in 1999 [24]. Many researchers have studied the use of ILs in extraction, and various reviews have been published [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] [4]arene (3) for Ag + [45,46] and N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (4) for Eu 3+ [47]. In these cases, an aqueous acid solution is used for stripping and back-extraction is achieved by a competitive Lewis acid-base reaction between the metal cation and the proton.…”

Section: Introductionmentioning

confidence: 99%

Chelate Extraction of Metals into Ionic Liquids

Hirayama

2011

SERDJ

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In the solvent extraction of metal cations into ionic liquids, use of Brønsted acid-type chelate extractants has some advantages including simplicity in controlling extraction selectivity by selecting suitable aqueous phase pH values and simple back-extraction recovery of the extracted metals using acid solutions. In this review, various fundamental and applied research on metal extraction using the "ionic liquid chelate extraction system" since 2001 are described in detail.

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“…Recently, use of hydrophobic ionic liquids (ILs) as the extraction phase in solvent extraction has widely been investigated [5][6][7]. ILs are salts with low melting points and can act as high-polar solvents.…”

Section: Introductionmentioning

confidence: 99%

Salting-out Phase Separation System of Water–Tetrahydrofuran with Co-using 1-Butyl-3-methylimidazolium Chloride and Sodium Chloride for Possible Extraction Separation of Chloro-complexes

Hirayama

Higo

Imura

2014

SERDJ

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The salting-out phase separation behavior of the water-tetrahydrofuran (THF) homogeneous system with co-adding a hydrophilic ionic liquid, 1-butyl-3-methylimidazolium chloride ([C 4 mim]Cl), and NaCl was investigated. In the water-THF/[C 4 mim]Cl biphasic system, the lower phase showed a relatively large volume and low polarity compared with that in the water-THF/NaCl system, because of the coexistence of THF and [C 4 mim]Cl. In the water-THF/[C 4 mim]Cl-NaCl mixed salting-out agent system, the lower phase polarity depended on the composition of the salting-out agents. Furthermore, the distribution behavior of Fe(III)-and Zn(II)-chloro complexes in the mixed salting-out agent system was investigated to show the potential for application of the system for the extraction separation of metals as their chloro-complexes.

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Emerging ionic liquid-based techniques for total-metal and metal-speciation analysis

Cited by 93 publications

References 66 publications

Recent Microextraction Techniques for Determination and Chemical Speciation of Selenium

Recent Microextraction Techniques for Determination and Chemical Speciation of Selenium

Chelate Extraction of Metals into Ionic Liquids

Salting-out Phase Separation System of Water–Tetrahydrofuran with Co-using 1-Butyl-3-methylimidazolium Chloride and Sodium Chloride for Possible Extraction Separation of Chloro-complexes

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