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Development of preconcentration strategies for the simultaneous ultratrace determination of As, Cd and Pb in foods by ICP-OES: knotted-reactor vs. dispersive liquid–liquid microextraction
(Royal Society of Chemistry, 2020-03)
Determination of As, Cd and Pb in food samples by means of inductively coupled plasma optical emission spectrometry (ICP-OES) is challenging due to detection limits being close to the maximum levels established by current ...
Capabilities of several phosphonium ionic liquids for arsenic species determination in water by liquid-liquid microextraction and electrothermal atomic absorption spectrometry
(Royal Society of Chemistry, 2015)
The capabilities of several phosphonium-ionic liquids (PILs) to form ion-pairs with a complex obtained by reaction of arsenate species with molybdate were evaluated. Phosphonium-ILs containing the tetradecyl(trihexyl)phosphonium ...
Interaction of chitosan and self-assembled distearoylphosphatidic acid molecules at liquid/liquid and air/water interfaces. Effect of temperature
(John Wiley & Sons Ltd, 2016-11)
The effect of the polyelectrolyte, chitosan (CHI), on distearoylphosphatidic acid (DSPA) films was analyzed by cyclic voltammetry, surface pressure-area isotherm, and Brewster angle microscopy. Distearoylphosphatidic acid ...
Ultrasound leaching - dispersive liquid-liquid microextraction based on solidification of floating organic droplet for determination of polybrominated diphenyl ethers in sediment samples by gas chromatography-tandem mass spectrometry
(Elsevier, 2013-02-16)
Ultrasound leaching–dispersive liquid–liquid microextraction using solidification of floating organic droplet (USL–DLLME-SFO) technique is proposed for extraction and isolation of polybrominated diphenyl ethers (PBDEs) ...
Study of enantioseparation of β-blockers using amylose tris(3-chloro-5-methylphenylcarbamate) as chiral stationary phase under polar-organic, reversed-phase and hydrophilic interaction liquid chromatography conditions
(Elsevier, 2020-12)
In this study, we describe the experimental variables influencing enantioseparation of twelve β-blockers when analyzed under polar-organic, reversed-phase and hydrophilic interaction liquid chromatography conditions on a ...
Sensitive determination of thallium species in drinking and natural water by ionic liquid-assisted ion-pairing liquid-liquid microextraction and inductively coupled plasma mass spectrometry
(Elsevier, 2012-12-03)
A fast and simple method involving separation and determination of thallium (Tl) species, based on novel ionic liquid-assisted ion pairing dispersive liquid-liquid microextraction (DLLME) method, was developed. Initially, ...
Hydraulic Conductivity of Organoclay and Organoclay-Sand Mixtures to Fuels and Organic Liquids
(Asce-amer Soc Civil Engineers, 2015-02)
Hydraulic conductivity, swelling, and liquid sorption capacity (i.e., maximum organic liquid mass bound per mass organoclay solid) were measured for an organoclay with dimethylammonium bound to the surface. Five fuels (No. ...
Experimental measurements of vapor-liquid equilibria at low pressure: Systems containing alcohols, esters and organic acids
(Elsevier Science, 2010-01)
In this work the vapor-liquid equilibria for nine binary mixtures (methanol + acetic acid, methanol + methyl acetate, methanol + water, methyl acetate + acetic acid, water + acetic acid, ethyl acetate + acetic acid, ethanol ...