Electrically enhanced liquid‐phase microextraction of three textile azo dyes from wastewater and plant samples

Nojavan, Saeed; Tahmasebi, Zeinab; Bidarmanesh, Tina; Behdad, Hamideh; Nasiri-Aghdam, Mahnaz; Mansori, Sozan; Pourahadi, Ahmad

doi:10.1002/jssc.201300546

Cited by 47 publications

(19 citation statements)

References 36 publications

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“…The equipment used for the EME was the same as the previous works . Platinum wires with a diameter of 0.25 mm were used as electrodes in the donor and acceptor solutions.…”

Section: Methodsmentioning

confidence: 99%

Electro‐driven extraction of inorganic anions from water samples and water miscible organic solvents and analysis by ion chromatography

et al. 2014

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A simple electromembrane extraction (EME) procedure combined with ion chromatography (IC) was developed to quantify inorganic anions in different pure water samples and water miscible organic solvents. The parameters affecting extraction performance, such as supported liquid membrane (SLM) solvent, extraction time, pH of donor and acceptor solutions, and extraction voltage were optimized. The optimized EME conditions were as follows: 1-heptanol was used as the SLM solvent, the extraction time was 10 min, pHs of the acceptor and donor solutions were 10 and 7, respectively, and the extraction voltage was 15 V. The mobile phase used for IC was a combination of 1.8 mM sodium carbonate and 1.7 mM sodium bicarbonate. Under these optimized conditions, all anions had enrichment factors ranging from 67 to 117 with RSDs between 7.3 and 13.5% (n = 5). Good linearity values ranging from 2 to 1200 ng/mL with coefficients of determination (R(2) ) between 0.987 and 0.999 were obtained. The LODs of the EME-IC method ranged from 0.6 to 7.5 ng/mL. The developed method was applied to different samples to evaluate the feasibility of the method for real applications.

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“…The equipment used for the EME was the same as the previous works . Platinum wires with a diameter of 0.25 mm were used as electrodes in the donor and acceptor solutions.…”

Section: Methodsmentioning

confidence: 99%

Electro‐driven extraction of inorganic anions from water samples and water miscible organic solvents and analysis by ion chromatography

et al. 2014

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“…Furthermore, due to the use of a little amount of organic solvent in the range of microliter, EME is environmentally friendly . To date, EME has been used for the extraction of drugs , dyes , heavy metals and anions , environmental pollutants , amino acids and peptides from different sample matrices. Several analytical methods such as HPLC , LC–ESI‐MS/MS , CE , electrochemical methods , microemulsion EKC , and immunoassay were reported for determination of tartrazine in different food samples.…”

Section: Introductionmentioning

confidence: 99%

Electromembrane extraction of tartrazine from food samples: Effects of nano‐sorbents on membrane performance

Yaripour

Mohammadi

Nojavan

2016

J of Separation Science

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In the present study, for the first time electromembrane extraction followed by high-performance liquid chromatography coupled with ultraviolet detection was developed and validated for the determination of tartrazine in some food samples. The parameters influencing electromembrane extraction were evaluated and optimized. The membrane consists of 1-octanol immobilized in the pores of a hollow fiber. As a driving force, a 30 V electrical field was applied to make the analyte migrate from sample solution with pH 3, through the supported liquid membrane into an acceptor solution with pH 10. Best preconcentration (enrichment factor >21) was obtained in extraction duration of 15 min. Effects of some solid nano-sorbents like carbon nanotubes and molecularly imprinted polymers on membrane performance and electromembrane extraction efficiency were evaluated. The method provided the linearity in the range 25-1000 ng/mL for tartrazine (R(2) > 0.9996) with repeatability range (RSD) between 3.8 and 8.5% (n = 3). The limits of detection and quantitation were 7.5 and 25 ng/mL, respectively. Finally, the method was applied to the determination and quantification of tartrazine from some food samples with relative recoveries in the range between 90 and 98%.

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“…Azo dyes are widely used in many industries such as the food, textile, paper, cosmetics, and plastic industry because of their low cost and high stability . With the development of these industries, a huge amount of wastewater containing azo dyes is discharged to the environment and causes serious water pollution . The presence of these dyes in water, even at very low concentrations, is highly visible and undesirable .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of molecularly imprinted polymer nanoparticles for the fast and highly selective adsorption of sunset yellow

et al. 2016

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Novel molecularly imprinted polymer nanoparticles were synthesized by precipitation polymerization with sunset yellow as the template and [2-(methacryloyloxy)ethyl] trimethylammonium chloride as the functional monomer. The molecularly imprinted polymer nanoparticles were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and their specific surface area and thermal stability were measured. The molecularly imprinted polymer nanoparticles had a high adsorption capacity in wide pH range (pH 1-8) for sunset yellow. The adsorption equilibrium only needed 5 min, and the quantitative desorption was very fast (1 min) by using 10.0 mol/L HCl as the eluant. The maximum adsorption capacity of the molecularly imprinted polymer nanoparticles for sunset yellow was 144.6 mg/g. The adsorption isotherm and kinetic were well consistent with Langmuir adsorption model and pseudo-second-order kinetic model, respectively. The relative selectivity coefficients of the molecularly imprinted polymer nanoparticles for tartrazine and carmine were 9.766 and 12.64, respectively. The prepared molecularly imprinted polymer nanoparticles were repeatedly used and regenerated ten times without significant absorption capacity decrease.

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Electrically enhanced liquid‐phase microextraction of three textile azo dyes from wastewater and plant samples

Cited by 47 publications

References 36 publications

Electro‐driven extraction of inorganic anions from water samples and water miscible organic solvents and analysis by ion chromatography

Electro‐driven extraction of inorganic anions from water samples and water miscible organic solvents and analysis by ion chromatography

Electromembrane extraction of tartrazine from food samples: Effects of nano‐sorbents on membrane performance

Synthesis of molecularly imprinted polymer nanoparticles for the fast and highly selective adsorption of sunset yellow

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