Solvent extraction of selected endocrine-disrupting phenols using ionic liquids

Fan, Jing; Fan, Yun-Chang; Pei, Yuanchao; Wu, Kun; Wang, Jianji; Fan, Maohong

doi:10.1016/j.seppur.2007.11.005

Cited by 204 publications

(132 citation statements)

References 36 publications

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“…If analytes exist in ionic form, the extraction occurs by an ion-exchange mechanism involving transfer of appropriate ions to maintain electroneutrality. In this case, stronger hydrogen-bonding interactions will generate tetrafluoroborates owing to the stronger effective charge in comparison to hexafluorophosphates (Fan et al, 2008), taking into account extraction of phenols. In turn increasing the hydrophobicity of the cation provided decreases the extraction efficiency.…”

Section: Liquid-liquid Extraction By Hydrophobic Ionic Liquidsmentioning

confidence: 99%

Ionic Liquids in Separation Techniques

Flieger¹,

Czajkowska-Żelazko²

2011

Applications of Ionic Liquids in Science and Technology

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Section: Liquid-liquid Extraction By Hydrophobic Ionic Liquidsmentioning

confidence: 99%

Ionic Liquids in Separation Techniques

Flieger¹,

Czajkowska-Żelazko²

2011

Applications of Ionic Liquids in Science and Technology

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“…17 Additionally, ionic liquids in combination with more efficient extraction processes, such as microwave or ultrasound, have been successfully employed to extract various types of natural products including alkaloids, phenolic derivatives, terpenes and other metabolites. [18][19][20][21][22][23][24][25][26][27][28][29] Due to the high viscosity of the ionic liquids, usually they are used dissolved in water, which lowers the cost of the process. Finally, it is noteworthy that ionic liquids are compounds that absorb microwave very efficiently, making them excellent solvents when this technology is required.…”

Section: Introductionmentioning

confidence: 99%

Application of an Ionic Liquid in the Microwave Assisted Extraction of Cytotoxic Metabolites from Fruits of Schinus terebinthifolius Raddi (Anacardiaceae)

Morais¹,

Coutinho²,

Camilo³

et al. 2016

J. Braz. Chem. Soc.

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This work reports the application of an ionic liquid (1-butyl-3-methylimidazolium bromide, BMImBr) in the microwave assisted extraction (MAE) of metabolites from fruits of Schinus terebinthifolius. Dried fruits were individually extracted using BMImBr:H 2 O 1:1, v/v (experiment 1) and pure H 2 O (experiment 2) by MAE (10 min at 60 °C). After partition using EtOAc, the yield to experiment 1 was about 23% while to experiment 2 was 0.1%. The EtOAc fraction obtained from experiment 1 was purified by chromatographic methods to afford 3-oxotirucalla-7,24Z-dien-27-oic acid, 3a-hydroxytirucalla-7,24Z-dien-27-oic acid, 3a-acetoxytirucalla-7,24Z-dien-27-oic acid, gallic acid, and ethyl gallate, being the first occurrence of the third compound as natural product. Cytotoxic activity was evaluated in vitro against cancer cell lines (A2058, HeLa, SiHa, HCT, SKBR-3, U87, and B16F2Nex2), being 3a-acetoxytirucalla-7,24Z-dien-27-oic acid the more active metabolite with IC 50 ranging from 10.9 ± 1.3 to 17.3 ± 1.4 µg mL -1 , lower than that determined to positive control cisplatin.

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“…In case the best selective ionic liquid is toxic in nature, the second best ionic liquid will be chosen provided it considers the hydrophobicity and hazardous activity of solvent. Previous studies reported [33] that ionic liquids having affinity to water are undesirable for liquid-liquid extraction.…”

Section: Resultsmentioning

confidence: 99%

“…We have reimplemented the COSMO-SAC model as given by Sandler and Lin [28]. The COSMO file containing the ideal screening charges were obtained from the GAUSSIAN03 [32] package using the MOLDEN visualization freeware [24,33]. The interaction energies are described by the COSMO-RS parameters.…”

Section: Computational Detailsmentioning

confidence: 99%

Extraction of Phthalic Acid from Aqueous Solution by Using Ionic Liquids: A Quantum Chemical Approach

Banerjee¹,

Pilli²,

Mohanty³

2014

Int. J. Thermo

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Phthalic acid is an industrial chemical and it comes under the domain of endocrine disrupting chemicals (EDCs). Green solvents such as ionic liquids (ILs) possess good extractable capabilities for EDCs. COSMO-RS methodology is a widely accepted method for the design or selection of ionic liquids. COSMO-RS is a quantum chemical based method based on COSMO polarization charge densities. In this work the model has been used to screen the potential ionic liquids for the removal of phthalic acid from water. Five group of ILs with cations such as phosphonium, imidazolium, pyridinium, pyrolidinium and ammonium were screened at infinie dilution. A total of 34 cations and 29 anions i.e. 986 possible ILs were screened and their selectivities and capacities were predicted. The selectivities of the screened ILs are : phosphonium > pyrolidinium > imidazolium > ammonim > pyridinium.

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Solvent extraction of selected endocrine-disrupting phenols using ionic liquids

Cited by 204 publications

References 36 publications

Ionic Liquids in Separation Techniques

Ionic Liquids in Separation Techniques

Application of an Ionic Liquid in the Microwave Assisted Extraction of Cytotoxic Metabolites from Fruits of Schinus terebinthifolius Raddi (Anacardiaceae)

Extraction of Phthalic Acid from Aqueous Solution by Using Ionic Liquids: A Quantum Chemical Approach

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