On-line in-syringe magnetic stirring assisted dispersive liquid–liquid microextraction HPLC – UV method for UV filters determination using 1-hexyl-3-methylimidazolium hexafluorophosphate as extractant

Suárez, Ruth; Clavijo, Sabrina; Avivar, Jessica; Cerdà, Vı́ctor

doi:10.1016/j.talanta.2015.10.031

Cited by 44 publications

(22 citation statements)

References 33 publications

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“…34 6 ] with the dispersing solvents resulted in the formation of a small cloudy solution leading to little or no formation of the sedimented organic phase after centrifugation due to its high solubility in water. Similar behavior was observed by Suárez et al 23 and Zhang et al 34,35 Therefore, [C 4 MIM][PF 6 ] was eliminated. As it can be seen in Figure S1 (Supplementary Information), when [C 6 MIM][PF 6 ] was used, combined with acetone and acetonitrile as disperser solvents, recoveries decreased for all compounds.…”

Section: Selection Of Extraction and Disperser Solventsupporting

confidence: 82%

“…They stand out, not only for their potential as 'green' liquids, but also because they are not flammable, presenting high thermal stability, negligible vapor pressure, high viscosities, ionic conductivity and electrochemical and thermal stability moderate dissolvability in organic compounds, adjustable miscibility and polarity, as well as good extractability for different organic and inorganic compounds, as well as good solvation ability characteristics that make them a strong solvent extractor in microextraction. 23,24 Among the most used are 1-hexyl-3-methylimidazolium hexafluorophosphate [C 6 6 ]. 26 The use of ILs as extraction solvents was first reported by Zhou et al 27 during the determination of organophosphorus pesticides in water samples and has been applied for the extraction of different analytes groups such as in the ultrasound-assisted ionic liquid microextraction, 26 vortex-assisted ionic liquid microextraction 1 and microwave-assisted ionic liquid microextraction.…”

Section: Introductionmentioning

confidence: 99%

“…They stand out, not only for their potential as 'green' liquids, but also because they are not flammable, presenting high thermal stability, negligible vapor pressure, high viscosities, ionic conductivity and electrochemical and thermal stability moderate dissolvability in organic compounds, adjustable miscibility and polarity, as well as good extractability for different organic and inorganic compounds, as well as good solvation ability characteristics that make them a strong solvent extractor in microextraction. 23,24 Among the most used are 1-hexyl-3-methylimidazolium hexafluorophosphate [C 6 Although DLLME has been widely applied in the determination of organic compounds in aqueous samples, IL-DLLME has never been applied in the simultaneous analysis of pesticides and PPCPs in water samples. In this study, IL-DLLME, a simple, green and rapid technique was successfully applied for simultaneous extraction of 19 pesticides and 16 PPCPs in water samples followed by determination with liquid chromatography tandem mass spectrometry with an electrospray ionization source (LC-ESI-MS/MS).…”

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confidence: 99%

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Multi-Residue Method for Determination of Thirty-Five Pesticides, Pharmaceuticals and Personal Care Products in Water Using Ionic Liquid-Dispersive Liquid-Liquid Microextraction Combined with Liquid Chromatography-Tandem Mass Spectrometry

Marube¹,

Caldas²,

Santos³

et al. 2017

J. Braz. Chem. Soc.

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Ionic liquid-dispersive liquid-liquid microextraction (IL-DLLME) was used for the determination of different chemical classes of analytes for the first time. Limits of quantification (LOQs) ranged from 0.5 to 2.5 µg L −1, and the linearity ranged from the LOQ of each compound to 50 µg L -1. Recoveries ranged from 70 to 120% for the compounds, with relative standard deviations less than 18%. The proposed method demonstrates for the first time that sample preparation by IL-DLLME and determination by liquid chromatography-tandem mass spectrometry (LC-MS/MS) can be used successfully for the simultaneous extraction of 19 kinds of pesticides and 16 PPCPs from water samples. In addition, to eliminate the environmental risk of waste solvent disposal, this technique uses a low-toxicity extraction solvent. Finally, the analytical method proposed was applied successfully in analysis in surface water samples. Keywords: IL-DLLME, water, pesticides, PPCPs, LC-MS/MS IntroductionIn recent decades, many synthetic organic compounds detected in water samples have attracted people's attention. Pesticides, pharmaceuticals and personal care products (PPCPs) 1 have also been detected and are investigation targets. 2 Pesticides play an important role in increasing agricultural productivity. Their use in agriculture is inevitable, still being the most effective tool in the fight against weeds and pests. They are not only used for agricultural purposes, but also in forest and environmental preservation areas. Although the use of pesticides in agricultural applications provides a wide range of beneficial effects, their extensive use has been a concern because of hazards to the environment. 1,3 Toxic effects on humans, such as acute neurological toxicity, impairment of neurological development, possible dysfunction of the immune, reproductive and endocrine systems, cancers, chronic kidney disease and other potential diseases have been reported in many papers. 4,5 PPCPs are used to prevent or treat human and animal diseases or to improve the quality of daily life. They have emerged as a major group of environmental pollutants over the past decades since some of them are produced and used in large quantities. 2 Various investigations indicate that many of them can hardly be totally removed during the water treatment process. Many PPCPs are persistent or pseudo-persistent in the environment and are toxic to non-target organisms. They also have the potential to bioaccumulate in different trophic level organisms. 2,6 To quantitatively evaluate the fate of these chemicals and ensure the quality of drinking water, effective analytical methods are extremely necessary. Since the concentrations of pesticides and PPCPs in water are generally very low (ng L -1 or less), extraction techniques are needed prior to chromatographic determination. 7 The most commonly used methods are liquid-liquid extraction (LLE), 8,9 and solid phase extraction (SPE).10,11 These techniques, however, are time consuming and use large amounts of organic solvents. Thus, the ...

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Section: Selection Of Extraction and Disperser Solventsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

“…They stand out, not only for their potential as 'green' liquids, but also because they are not flammable, presenting high thermal stability, negligible vapor pressure, high viscosities, ionic conductivity and electrochemical and thermal stability moderate dissolvability in organic compounds, adjustable miscibility and polarity, as well as good extractability for different organic and inorganic compounds, as well as good solvation ability characteristics that make them a strong solvent extractor in microextraction. 23,24 Among the most used are 1-hexyl-3-methylimidazolium hexafluorophosphate [C 6 Although DLLME has been widely applied in the determination of organic compounds in aqueous samples, IL-DLLME has never been applied in the simultaneous analysis of pesticides and PPCPs in water samples. In this study, IL-DLLME, a simple, green and rapid technique was successfully applied for simultaneous extraction of 19 pesticides and 16 PPCPs in water samples followed by determination with liquid chromatography tandem mass spectrometry with an electrospray ionization source (LC-ESI-MS/MS).…”

mentioning

confidence: 99%

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Multi-Residue Method for Determination of Thirty-Five Pesticides, Pharmaceuticals and Personal Care Products in Water Using Ionic Liquid-Dispersive Liquid-Liquid Microextraction Combined with Liquid Chromatography-Tandem Mass Spectrometry

Marube¹,

Caldas²,

Santos³

et al. 2017

J. Braz. Chem. Soc.

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“…As a viable alternative for high‐throughput analysis, automated or semi‐automated IL‐DLLME procedures have been proposed by using FI and related systems. Table 2 lists online IL‐DLLME applications recently reported in the literature [51–53,65–72]. Those research studies in which a batchwise IL‐DLLME step was followed by direct FI‐analysis were not covered in this review: e.g.…”

Section: Ionic Liquids and Derivatives In High‐throughput Lpmementioning

confidence: 99%

“…FI‐ICP [73] and FI‐atomic absorption spectroscopy [74]. Several authors have selected 1‐alkyl‐3‐methylimidazolium hexafluorophosphate ILs ([C n MIM + ][PF 6 − ], with n = 4 [51,67], 6 [53,70,71], or 8 [68]) in FI‐based systems. Pyridinium‐ (1‐octylpyridinium tetrafluoroborate or [C 8 Py + ][BF 4 − ] [66]), or phosphonium‐based ILs (trihexyl(tetradecyl)phosphonium chloride or [P 6,6,6,14 + ][Cl − ] [52,65,69], commercially available as CYPHOS® IL 101) have also been employed.…”

Section: Ionic Liquids and Derivatives In High‐throughput Lpmementioning

confidence: 99%

High‐throughput microscale extraction using ionic liquids and derivatives: A review

Trujillo−Rodríguez

Pino

Miró

2020

J of Separation Science

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Ionic liquids and derivatives-mainly polymeric ionic liquids and magnetic ionic liquids-have been extensively used in microscale extraction over the past few years. Current trends in analytical sample preparation gear toward linking microextraction approaches with high-throughput sample processing to comply with green analytical chemistry requirements. A variety of high sample throughput strategies that are coupled to both ionic-liquid-based solid-phase microextraction and ionic liquid-based liquid-phase microextraction are herein reported. The review is focused on microscale extraction methods that use (i) custom-made and dedicated extraction devices, (ii) parallel extraction, (iii) magnetic-based separation, and (iv) miniaturized systems employing semi-automatic or fully automatic flow injection methods, related micro/millifluidic devices, and robotic equipment. K E Y W O R D S automation, ionic liquids, magnetic ionic liquids, polymeric ionic liquids, sample preparation Article Related Abbreviations: γ-MAPS, 3-(trimethoxysilyl) propylmethacrylate; μ-SPE, micro-solid phase extraction; [(AC 3 )MIM + ], 1-aminopropyl-3-methylimidazolium; [(VIM) 2 C 10 2+ ], 1,12-di(vinylimidazolium)decane; [(VIM) 2 C 6

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Air‐assisted dispersive liquid–liquid microextraction based on a new hydrophobic deep eutectic solvent for the preconcentration of benzophenone‐type UV filters from aqueous samples

Zhang

Dai

et al. 2018

J of Separation Science

103

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Deep eutectic solvents are considered as new and green solvents that can be widely used in analytical chemistry such as microextraction. In the present work, a new dl-menthol-based hydrophobic deep eutectic solvent was synthesized and used as extraction solvents in an air-assisted dispersive liquid-liquid microextraction method for preconcentration and extraction of benzophenone-type UV filters from aqueous samples followed by high-performance liquid chromatography with diode array detection. In an experiment, the deep eutectic solvent formed by dl-menthol and decanoic acid was added to an aqueous solution containing the UV filters, and then the mixture was sucked up and injected five times by using a glass syringe, and a cloudy state was achieved. After extraction, the solution was centrifuged and the upper phase was subjected to high-performance liquid chromatography for analysis. Various parameters such as the type and volume of the deep eutectic solvent, number of pulling, and pushing cycles, solution pH and salt concentration were investigated and optimized. Under the optimum conditions, the developed method exhibited low limits of detection and limits of quantitation, good linearity, and precision. Finally, the proposed method was successfully applied to determine the benzophenone-type filters in environmental water samples with relative recoveries of 88.8-105.9%.

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On-line in-syringe magnetic stirring assisted dispersive liquid–liquid microextraction HPLC – UV method for UV filters determination using 1-hexyl-3-methylimidazolium hexafluorophosphate as extractant

Cited by 44 publications

References 33 publications

Multi-Residue Method for Determination of Thirty-Five Pesticides, Pharmaceuticals and Personal Care Products in Water Using Ionic Liquid-Dispersive Liquid-Liquid Microextraction Combined with Liquid Chromatography-Tandem Mass Spectrometry

Multi-Residue Method for Determination of Thirty-Five Pesticides, Pharmaceuticals and Personal Care Products in Water Using Ionic Liquid-Dispersive Liquid-Liquid Microextraction Combined with Liquid Chromatography-Tandem Mass Spectrometry

High‐throughput microscale extraction using ionic liquids and derivatives: A review

Air‐assisted dispersive liquid–liquid microextraction based on a new hydrophobic deep eutectic solvent for the preconcentration of benzophenone‐type UV filters from aqueous samples

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