Application of dispersive liquid–liquid microextraction and spectrophotometric detection to the rapid determination of rhodamine 6G in industrial effluents

Biparva, Pourya; Ranjbari, Elias; Hadjmohammadi, Mohammad Reza

doi:10.1016/j.aca.2010.06.024

Cited by 71 publications

(34 citation statements)

References 14 publications

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“…Industrial wastewaters [6] Anionic surfactants Domestic wastewater [17] Cypermethrin, permethrin 3.5 mL methanol …”

Section: 88mentioning

confidence: 99%

“…The aim of the authors is to simplify the analytical step and reduce the consumption of toxic solvents by comparing the developed pretreatment method with the method listed in Chinese pharmacopoeia. 6 ], that was selected for this study. After the addition of disperser solvent and IL to the sample, the formed cloudy solution was heated in a water bath with the temperature controlled at 60°C, and the cloudy solution was gradually clarified.…”

Section: Liquid Chromatographymentioning

confidence: 99%

“…Finally, Zhou et al [103] present the ultratrace determination of carbamate pesticides in water samples by TCIL-DLPME. In this case, [C 6 MIM] [PF 6 ] was utilized as the extractant and the temperature was used as the driving force in the dispersing procedure.…”

Section: Liquid Chromatographymentioning

confidence: 99%

“…The tube was thereafter transferred to ice water for 5 min, the solution became turbid and then emulsions were disrupted by centrifugation. [C 6 MIM][PF 6 ] that dispersed completely into the water solution under controlled temperature was used as the extraction solvent by Wang et al [97] for the determination of three triazine and two phenylurea herbicides in water samples. Under optimum conditions of DLLME procedure (Table 1) and before the centrifugation, the conical tube was heated in water bath at 70°C for 5 min, thereafter cooled with ice water for 30 min.…”

Section: Liquid Chromatographymentioning

confidence: 99%

“…The IL-based USA-DLLME procedure is free of volatile organic solvents, and there is no need for a dispersive solvent, in contrast to conventional DLLME. The ionic liquid, [C 6 mim][PF 6 ], was quickly disrupted by an ultrasonic probe for 1 min and dispersed in water samples like a cloud. At this stage, a hydrophobic complex between cadmium and sodium diethyldithiocarbamate was formed and extracted into the fine droplets of [C 6 mim][PF 6 ].…”

Section: 36mentioning

confidence: 99%

See 4 more Smart Citations

Separation and Preconcentration by Dispersive Liquid–Liquid Microextraction Procedure: Recent Applications

Ojeda

Rojas

2011

Chromatographia

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“…Industrial wastewaters [6] Anionic surfactants Domestic wastewater [17] Cypermethrin, permethrin 3.5 mL methanol …”

Section: 88mentioning

confidence: 99%

Section: Liquid Chromatographymentioning

confidence: 99%

Section: Liquid Chromatographymentioning

confidence: 99%

Section: Liquid Chromatographymentioning

confidence: 99%

Section: 36mentioning

confidence: 99%

See 3 more Smart Citations

Separation and Preconcentration by Dispersive Liquid–Liquid Microextraction Procedure: Recent Applications

Ojeda

Rojas

2011

Chromatographia

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A comparison of various modes of liquid–liquid based microextraction techniques: Determination of picric acid

Burdel

Šandrejová

Balogh

et al. 2013

J of Separation Science

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Three modes of liquid-liquid based microextraction techniques--namely auxiliary solvent-assisted dispersive liquid-liquid microextraction, auxiliary solvent-assisted dispersive liquid-liquid microextraction with low-solvent consumption, and ultrasound-assisted emulsification microextraction--were compared. Picric acid was used as the model analyte. The determination is based on the reaction of picric acid with Astra Phloxine reagent to produce an ion associate easily extractable by various organic solvents, followed by spectrophotometric detection at 558 nm. Each of the compared procedures has both advantages and disadvantages. The main benefit of ultrasound-assisted emulsification microextraction is that no hazardous chlorinated extraction solvents and no dispersive solvent are necessary. Therefore, this procedure was selected for validation. Under optimized experimental conditions (pH 3, 7 × 10(-5) mol/L of Astra Phloxine, and 100 μL of toluene), the calibration plot was linear in the range of 0.02-0.14 mg/L and the LOD was 7 μg/L of picric acid. The developed procedure was applied to the analysis of spiked water samples.

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Computational design and fabrication of core–shell magnetic molecularly imprinted polymer for dispersive micro‐solid‐phase extraction coupled with high‐performance liquid chromatography for the determination of rhodamine 6G

Xie

Deng

et al. 2016

J of Separation Science

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A novel core-shell magnetic nano-adsorbent with surface molecularly imprinted polymer coating was fabricated and then applied to dispersive micro-solid-phase extraction followed by determination of rhodamine 6G using high-performance liquid chromatography. The molecularly imprinted polymer coating was prepared by copolymerization of dopamine and m-aminophenylboronic acid (functional monomers), in the presence of rhodamine 6G (template). The selection of the suitable functional monomers was based on the interaction between different monomers and the template using the density functional theory. The ratios of the monomers to template were further optimized by an OA9 (3(4) ) orthogonal array design. The binding performances of the adsorbent were evaluated by static, kinetic, and selective adsorption experiments. The results reveal that the adsorbent possesses remarkable affinity and binding specificity for rhodamine 6G because of the enhanced Lewis acid-base interaction between the B(Ш) embedded in the imprinted cavities and the template. The nano-adsorbent was successfully applied to dispersive micro-solid-phase extraction coupled to high-performance liquid chromatography for the trace determination of rhodamine 6G in samples with a detection limit of 2.7 nmol/L. Spiked recoveries ranged from 93.0-99.1, 89.5-92.7, and 86.9-105% in river water, matrimony vine and paprika samples, respectively, with relative standard deviations of less than 4.3%.

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Application of dispersive liquid–liquid microextraction and spectrophotometric detection to the rapid determination of rhodamine 6G in industrial effluents

Cited by 71 publications

References 14 publications

Separation and Preconcentration by Dispersive Liquid–Liquid Microextraction Procedure: Recent Applications

Separation and Preconcentration by Dispersive Liquid–Liquid Microextraction Procedure: Recent Applications

A comparison of various modes of liquid–liquid based microextraction techniques: Determination of picric acid

Computational design and fabrication of core–shell magnetic molecularly imprinted polymer for dispersive micro‐solid‐phase extraction coupled with high‐performance liquid chromatography for the determination of rhodamine 6G

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