Search
Now showing items 1-10 of 47
Determination of the surface properties of untreated and chemically treated kaolinites by inverse gas chromatography
(2006)
Inverse gas chromatography is used to study the surface properties of the untreated and chemically treated kaolinite samples. Changes in the enthalpy of adsorption for a variety of probes and in the surface energy of clays ...
The investigation of corrosion inhibition efficiency on some benzaldehyde thiosemicarbazones and their thiole tautomers: Computational study
(ELSEVIER SCIENCE BV, 2015)
Quantum chemical calculations using three methods, Hartree-Fock (HF), Moller-Plesset (MP) and density functional theory (DFT/B3LYP) method with SOD, 6-31G(d,p) and 6-31++G(d,p) basis sets are performed some benzaldehyde ...
Influence of some crosslinkers on the swelling of acrylamide-crotonic acid hydrogels
(1997)
Acrylamide-crotonic acid hydrogels in the form of rods are prepared by ?-irradiation of quaternary mixtures of acrylamide-crotonic acid-crosslinker-water with 2.6 and 5.2 kGy ?-rays. The influence of the applied dose, the ...
Experimental and theoretical investigation for the spectrophotometric determination of thiabendazole in fruit samples
(Elsevier, 2021)
A simple, green, and effective vortex-assisted dispersive liquid–liquid microextraction method was developed for separation, preconcentration and spectrophotometric determination of thiabendazole in fruit samples. This ...
Optimization of ultrasound-assisted dispersive liquid–liquid microextraction of niacinamide in pharmaceutical and cosmetic samples using experimental design
(Elsevier, 2021)
In this paper, an efficient and inexpensive analytical procedure using sugar alcohol-based deep eutectic solvent ultrasound-assisted dispersive liquid–liquid microextraction (DES-UA-DLLME) was optimized for the extraction ...
Optimization of vortex-assisted ionic liquid dispersive liquid–liquid microextraction by experimental design prior to hydride generation atomic absorption spectrometry for determination of selenium species in food, beverage and water samples
(Elsevier, 2021)
We applied novel vortex-assisted ionic liquid dispersive liquid-liquid microextraction (VA-IL-DLLME) method to preconcentration and extraction of Se(IV) ions from water, beverage and food samples. The method was optimized ...
Ionic hydrophobic deep eutectic solvents in developing air-assisted liquid-phase microextraction based on experimental design: Application to flame atomic absorption spectrometry determination of cobalt in liquid and solid samples
(Elsevier, 2021)
This paper reports a new and simple microextraction procedure for cobalt determination using green ionic hydrophobic deep eutectic solvent in developing air-assisted liquid-phase microextraction and flame atomic absorption ...
A DFT study on OH radical scavenging activities of eriodictyol, Isosakuranetin and pinocembrin
(2021)
Flavonoids are natural compounds with antioxidant properties that have positive effects on human health, which reduce toxic effects of reactive oxygen species (ROS) and partially oxidative damage. In the work, the density ...
Investigations of Hg(II) analysis in real samples via computational chemistry, experimental design, and green microextraction approach
(Elsevier, 2021)
An economical and green nanostructured supramolecular solvent-based ultrasound-assisted homogeneous liquid-liquid microextraction procedure was developed to separate and preconcentrate Hg(II) ions in water and vegetable ...
Ultrasound-assisted supramolecular solvent dispersive liquid-liquid microextraction for preconcentration and determination of Cr(VI) in waters and total chromium in beverages and vegetables
(Elsevier, 2021)
Simple, sensitive, selective and green ultrasound assisted supramolecular solvent dispersive liquid-liquid microextraction (UA–SUPRAS-DLLME) method was developed for preconcentration and determination of chromium ions in ...