Ionic liquid as extraction agent for detection of volatile phenols in wastewater and its regeneration

Ni, Huiqiong; Dong, Jie; Shi, Jianjun; Wang, Wei

doi:10.1002/jssc.200900730

Cited by 19 publications

(15 citation statements)

References 32 publications

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“…Important features of RTILs include their immeasurably low vapor pressure, incombustibility, good thermal stability, tunable viscosity and miscibility with water and organic solvents, as well as good extractability for various organic compounds and metal ions 23. Compared with the volatile, flammable and toxic organic solvents, RTILs have received attention as green solvents and are widely used in liquid–liquid extraction 23–25. The ionic liquid was used as extraction solvent and successfully applied to the extraction of para red and sudan dyes from chilli powder, chilli oil and food additive 26.…”

Section: Introductionmentioning

confidence: 99%

Determination of sudan dyes in red wine and fruit juice using ionic liquid‐based liquid–liquid microextraction and high‐performance liquid chromatography

Sun

Wang

et al. 2011

J of Separation Science

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The liquid-liquid microextraction (LLME) was developed for extracting sudan dyes from red wine and fruit juice. Room temperature ionic liquid was used as the extraction solvent. The target analytes were determined by high-performance liquid chromatography. The extraction parameters were optimized. The optimal conditions are as follows: volume of [C(6)MIM][PF(6)] 50 μL; the extraction time 10 min; pH value of the sample solution 7.0; NaCl concentration in sample solution 5%. The extraction recoveries for the analytes in red wine and fruit samples are 86.79-108.28 and 68.54-85.66%, whereas RSDs are 1.42-5.12 and 1.43-6.19%, respectively. The limits of detection and quantification were 0.428 and 1.426 ng/mL for sudan I, 0.938 and 3.127 ng/mL for sudan II, 1.334 and 4.445 ng/mL for sudan III, 1.454 and 4.846 ng/mL for sudan IV, respectively. Compared with conventional liquid-liquid extraction (CLLE) and ultrasonic extraction (UE), when LLME was applied, the sample amount was less (LLME: 4 mL; CLLE: 10 mL; UE: 10 mL), the extraction time was shorter (LLME: 15 min; CLLE: 110 min; UE: 50 min) and the extraction solvent amount was less (LLME: 0.05 mL IL; CLLE: 15 mL hexane; UE: 20 mL hexane). The proposed method offers a simple, rapid and efficient sample preparation for determining sudan dyes in red wine and fruit juice samples.

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Section: Introductionmentioning

confidence: 99%

Determination of sudan dyes in red wine and fruit juice using ionic liquid‐based liquid–liquid microextraction and high‐performance liquid chromatography

Sun

Wang

et al. 2011

J of Separation Science

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“…The results proved that the adsorption capacity of flavonoids on ionic liquid/MAR is better than that of original MARs. In addition, the use of ionic liquids for the separation and extraction of phenolic compounds has been studied [20,21]. The excellent adsorptive properties of ionic liquids for phenol motivated this present study on the effect of supported ionic liquid phases for the adsorption of catechin.…”

Section: Introductionmentioning

confidence: 99%

Evaluation on the adsorption capability of chemically modified macroporous adsorption resin with ionic liquid

Liu

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…These materials exhibit some significant advantages such as easy preparation and physicochemical properties . In spite of unique properties of ILs , all the aspects of green chemistry are not positive about them. They remain in the environment because of their slow degradation.…”

Section: Introductionmentioning

confidence: 99%

Deep eutectic solvent based magnetic nanofluid in the development of stir bar sorptive dispersive microextraction: An efficient hyphenated sample preparation for ultra‐trace nitroaromatic explosives extraction in wastewater

Zarei

Nedaei

Ghorbanian

2017

J of Separation Science

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A deep eutectic solvent based magnetic nanofluid was coupled with stir bar sorptive dispersive microextraction as a hyphenated sample preparation technique. The neodymium core magnetic stir bar was coated physically with nanofluid of magnetic carbon nanotube nanocomposites and deep eutectic solvents. The prepared nanofluid has magnetic and strong sorbing properties and is compatible with gas chromatography. In this nanofluid, the deep eutectic solvent acts simultaneously as both carrier and stabilizer for magnetic nanotubes. The predominant experimental variables affecting the extraction efficiency of nitroaromatic compounds were evaluated. Under the optimized conditions, the limit of detection and enrichment factor were in the range of 0.2-4.9 ng/L and 852-1480, respectively. The relative standard deviations were between 5.6 and 10.2% (n = 6). Method validation was performed by both spiking-recovery method and comparison of results with other methods. Finally, the proposed method was successfully applied for the extraction and pre-concentration of nitroaromatic explosives in water samples, followed by determination by gas chromatography with micro-electron capture detection.

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Ionic liquid as extraction agent for detection of volatile phenols in wastewater and its regeneration

Cited by 19 publications

References 32 publications

Determination of sudan dyes in red wine and fruit juice using ionic liquid‐based liquid–liquid microextraction and high‐performance liquid chromatography

Determination of sudan dyes in red wine and fruit juice using ionic liquid‐based liquid–liquid microextraction and high‐performance liquid chromatography

Evaluation on the adsorption capability of chemically modified macroporous adsorption resin with ionic liquid

Deep eutectic solvent based magnetic nanofluid in the development of stir bar sorptive dispersive microextraction: An efficient hyphenated sample preparation for ultra‐trace nitroaromatic explosives extraction in wastewater

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