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Response surface methodology based on central composite design for optimizing temperature-controlled ionic liquid-based microextraction for the determination of histamine residual in canned fish products
(Elsevier, 2021)
A rapid and simple analytical procedure for the determination of histamine in canned fish products using temperature-controlled ionic liquid-based microextraction (TC-IL-ME) mated to chemometric tool and coupled to ...
Nanocomposite smart hydrogel based on sepiolite nanochannels/N-isopropyl acrylamide/itaconic acid/acrylamide for invertase immobilization
(TAYLOR & FRANCIS INC530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106, JAN 2 2021)
Novel nanocomposite smart hydrogel (NSH) and smart hydrogel (SH) are prepared to be used as a support for invertase. Spectrophotometric and thermal analysis methods were used for the characterization. Lower critical solution ...
A new analytical approach for preconcentration, separation and determination of Pb(II) and Cd(II) in real samples using a new adsorbent: Synthesis, characterization and application
(Elsevier, 2021)
A green and efficient analytical approach was reported for simultaneous preconcentration, and separation of Pb(II) and Cd(II) in water, vegetables, and barbecue samples by dispersive solid-phase microextraction prior to ...
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 ...
Smart Hydrogels: Preparation, Characterization, and Determination of Transition Points of Crosslinked N-Isopropyl Acrylamide/Acrylamide/Carboxylic Acids Polymers
(MDPI, 2021/8/8)
Smart hydrogels (SH) were prepared by thermal free radical polymerization of N-isopropyl acrylamide (NIPAAm), acrylamide (AAm) with acrylic acid (A) or maleic acid (M), and N,N '-methylene bisacrylamide. Spectroscopic and ...
An optimization approach for fast, simple and accurate determination of indigo-carmine in food samples
(Elsevier, 2021)
This study report optimization of vortex-assisted natural deep eutectic solvent based liquid-phase microextraction (VA-NADES-LPME) for determination of indigo-carmine in some food samples by UV–Visible spectrophotometer. ...
Application of a novel poly(SMAm)-Tris-Fe3O4 nanocomposite for selective extraction and enrichment of Cu(I) /Cu(II) from beer, soft drinks and wine samples, and speciation analysis by micro-volume UV-Vis spectrophotometry
(ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2021)
In this study, a novel functional nanocomposite was synthesized, characterized and selectively used in pHcontrolled separation, pre-concentration and speciation analysis of Cu(I) and Cu(II) from sample matrices where ...
Self-adjoint extensions for a class of singular operators
(Turkish Journal of Mathematics, 2021)
In this study, we consider the domains of the minimal and maximal operators generated of singular
differential-expression-type Sturm–Liouville and obtain all self-adjoint extensions of the operator in terms of ...
Eco-friendly trace analysis of silver in beer/wine samples using a new co-polymeric nanocomposite based-ultrasound assisted-cloud point extraction combined with spectrophotometry
(ELSEVIER, 5 şubat 20)
In this study, a new magnetic nanocomposite based on the tris(2-hydroxymethyl)aminomethane-modified poly (styrene-co-N-maleimide) copolymer and Fe3O4 nanoparticles were prepared as a new micellar interface for preconcentration ...
Use of new polymeric composites for preconcentration of trace Ag+ ions from the selected mushroom/vegetables by ultrasoundassisted cloud-point extraction coupled to microvolume UV-Vis spectrophotometry
(Taylor&Francis, 2021)
The magnetic nano-composites based on the tris(hydroxymethlmethyl)
aminomethane-modified maleic anhydride-co-styrene copolymers
and Fe3O4 nano-particles were prepared as new potential
chelating agents for ultrasound-a ...