Browsing Kimya Bölümü by Title
Now showing items 130-149 of 171
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pH-controlled charge transfer sensitive 2-aminobenzimidazole modified poly(styrene-co-maleic anhydride) copolymer for selective extraction, pre-concentration and determination of trace Hg2+ and CH3Hg+ in vinegar by combination of ultrasound assisted-cloud point extraction with UV–VIS spectrophotometry
(Elsevier, 8 July 202)In this study, a separation/pre-concentration procedure, ultrasound assisted-cloud point extraction with modified 2-aminobenzimidazole (2-ABzI), was developed for the extraction of trace Hg2+ and CH3Hg+ and from vinegar ... -
Potential thiosemicarbazone-based enzyme inhibitors: Assessment of antiproliferative activity, metabolic enzyme inhibition properties, and molecular docking calculations
(Wiley, 2022)A new series of thiosemicarbazone derivatives (1–11) were prepared from various aldehydes and isocyanates with high yields and practical methods. The structures of these compounds were elucidated by Fourier transform ... -
Potential thiosemicarbazone-based enzyme inhibitors: Assessment of antiproliferative activity, metabolic enzyme inhibition properties, and molecular docking calculations
(Wiley, 2022)A new series of thiosemicarbazone derivatives (1–11) were prepared from various aldehydes and isocyanates with high yields and practical methods. The structures of these compounds were elucidated by Fourier transform ... -
Preparation of fatty acid-based ternary deep eutectic solvents: Application for determination of tetracycline residue in water, honey and milk samples by using vortex-assisted microextraction
(Elsevier, 2023)Simple, rapid, low cost, selective, and sensitive analytical method was developed using fatty acid-based ternary deep eutectic solvents (TDESs) for extraction and determination of tetracycline in honey, milk and water ... -
Quantum chemical and molecular dynamic simulation studies for the identification of the extracted cinnamon essential oil constituent responsible for copper corrosion inhibition in acidified 3.0 wt% NaCl medium
(Elsevier, Şubat 2021)The influence of the extracted cinnamon essential oil (CiO) on the copper corrosion resistance in acidified 3.0 wt% NaCl (pH = 2) medium was investigated by using electrochemical measurements and Scanning Electron Microscopy ... -
Removal of lead (II) from aqueous solution using epichlorohydrin cross-linked shrimp waste-derived chitosan based @ calcium phosphates biocomposite: Experimental study and computational approach
(2023)An economical composite has been synthesized utilizing chitosan derived from discarded shrimp shells and hydroxyapatite extracted from waste bovine bones. This research delves into the composite's adsorption properties for ... -
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 ... -
Revealing the new structure of B8N8 nanocage and comparison of hydrogen storage capacity
(2022)The new structure for B8N8 nanocage was revealed. This structure is completely different from the known structure. The structural properties of investigated structures were investigated and compared with each other. The ... -
Scale factor database for the vibration frequencies calculated in M06-2X, one of the DFT methods
(2021)Vibrational scale factors were determined for the M06-2X method. The calculated scale factors were supported statistically. The main objective is to determine the concordance between frequencies. Descriptive statistics ... -
Selective extraction and enrichment of 5-hydroymethylfurfural from honey, molasses, jam and vinegar samples prior to sensitive determination by micro-volume UV-vis spectrophotometry
(CADEMIC PRESS INC ELSEVIER SCIENCE525 B ST, STE 1900, SAN DIEGO, CA 92101-4495, 2021)In this study, a new method was developed for the extraction/enrichment of 5-hydroxymethylfurfural (5-HMF) from sample matrix prior to analysis. The method is based on the selective formation of the imine adduct and ionpair ... -
Selective Removal of Mercury(II) Using Hydrogels Prepared by Gamma Radiation
(LVIV POLYTECH NATL UNIV12, LVIV, LVIV OBLAST 79000, UKRAINE, 2022)To selectively remove mercury(II), 2-hydroxy-ethyl methacrylate (HM) and 2-hydroxyethyl methacrylate/acrylamide (HM/ACR) hydrogels were synthesized using radiation. These hydrogels were used in swelling, diffusion, and ... -
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 ... -
Smart Hydrogels: Preparation, Characterization, and Determination of Transition Points of Crosslinked N-Isopropyl Acrylamide/Acrylamide/Carboxylic Acids Polymers
(MDPI, 2021/9)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 ... -
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 ... -
Spatio-temporal change of heavy metal pollution in Sivas City [Sivas kenti'nde agir metal kirliliginin yerel ve zamansal degisimi]
(2000)The anthropogenic heavy metal pollution of Sivas city was traced at seven stations which had the characteristic properties of the city, spatially and temporally, during the summer seasons, between 1992-1994. The heavy ... -
Spectroscopic (FT-IR, NMR, single crystal XRD) and DFT studies including FMO, Mulliken charges, and Hirshfeld surface analysis, molecular docking and ADME analyses of 2-amino-4 -fluorobenzophenone (FAB)
(2022)In this work, synthesis, and crystal structure of molecule 2-amino-4 -fluorobenzophenone (FAB) is con- firmed by using FT-IR, FT-Raman, 1 H and 13 C NMR chemical shifts, compared with calculated parameters using B3LYP/ ... -
Structural, spectroscopic and activity calculations on methanesulfonylhydrazone derivative chromium pentacarbonyl complexes
(Turkish Chemical Society, 2018)The thiophene-2-carboxyaldehyde methanesulfonylhydrazone (msh1), 2-acetylthiophene methanesulfonylhydrazone (msh2) and 2-acetyl-5-methylthiophene methanesulfonylhydrazone (msh3) ligands, a heteroatomic methanesulfonylhydrazone ... -
Synthesis and competitive 7 Li NMR studies of two morpholine-based ligands
(Elsevier, 2021)7 Li NMR spectroscopy was used to investigation the stability, stoichiometry and thermodynamic infor- mation of a Li + complex with one known, N1-(2-morpholinoethyl)-N1-((pyridine-2-yl)methyl)propane- 1,3-diamine (A 1 ) ... -
Synthesis of diaryl urea derivatives and evaluation of their antiproliferative activities in colon adenocarcinoma
(2022)Colon cancer is one of the leading causes of cancer-related deaths today. Serious research for ideal chemotherapy continues today. In this context, newly synthesized molecules have an essential role in cancer treatment ... -
Synthesis of polystyrene-polyricinoleic acid copolymer containing silver nano particles for dispersive solid phase microextraction of molybdenum in water and food samples
(Elsevier, 2022)Polystyrene-polyricinoleic acid copolymer containing silver nano particles (AgPSrici) was synthesized and used in separation of molybdenum from different aqueous and foodstuff samples during a dispersive-μ-solid phase ...