0000000000907222

AUTHOR

Paola D'angelo

showing 2 related works from this author

Application of a low transition temperature mixture for the dispersive liquid–liquid microextraction of illicit drugs from urine samples

2021

© 2021 by the authors.

BioanalysisLiquid Phase MicroextractionProductes biològicsIllicit drugsDispersive liquid–liquid mi-croextractionPharmaceutical ScienceOrganic chemistryUrineUrineHigh-performance liquid chromatographyBiological samples; Deep eutectic solvents; Dispersive liquid–liquid mi-croextraction; Drugs; High performance liquid chromatography; Illicit drugs; Low transition temperature mixtures; UrineArticleLow transition temperature mixturesAnalytical Chemistrychemistry.chemical_compoundBiological samplesQD241-441Limit of DetectionDrug DiscoveryHumansTransition TemperatureSample preparationPhysical and Theoretical ChemistryChromatographyChemistryExtraction (chemistry)Deep eutectic solventsDrugsSolventCold TemperatureChemistry (miscellaneous)Dispersive liquid–liquid microextractionMolecular MedicineDroguesGlass transitionCholine chlorideHigh performance liquid chromatography
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FT-IR and dielectric study of water/AOT liquid crystals

2000

Abstract In order to explore the influence of microwave radiation on highly viscous microheterogeneous systems, the evolution of structural and dynamical properties of the water/sodium bis(2-ethylhexyl) sulfosuccinate (AOT) liquid crystals as a function of the molar ratio R (R=[water]/[AOT]) has been investigated by FT-IR spectroscopy and time domain reflectometry. The study emphasises how the progressive hydration of the surfactant head groups is mainly responsible for the structural and dynamical evolution of water/AOT liquid crystals. In particular, it has been found that the state of water at lower R values is strongly perturbed, bulk-like water appears only at R>23 and the water/AOT in…

chemistry.chemical_classificationSodiumOrganic ChemistryAnalytical chemistryIonic bondingchemistry.chemical_elementDielectricAnalytical ChemistryInorganic ChemistrychemistryPulmonary surfactantLiquid crystalCounterionFourier transform infrared spectroscopySpectroscopySpectroscopyJournal of Molecular Structure
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