Erişim şekli için "info:eu-repo/semantics/openAccess" Kimya Bölümü listeleme
Toplam kayıt 50, listelenen: 21-40
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İyonofor olarak bir Kaliks[4]aren türevinin kullanıldığı iyodür-seçici PVC Membran elektrot
(2017)Bu çalışmada, iyonofor olarak 5,11,17,23-tetra(tert-bütil)-25,26,27,28- tetra(4-propilimidazol asetamit)-kaliks[4]aren bileşiğinin kullanıldığı iyodürseçici yeni bir polivinil klorür (PVC) membran elektrot hazırlandı. ... -
Lead removal from industrial waste
(Hitit University, 2017)In this study, the heavy metal removal performance of poly(2-hydroxyethyl methacrylate-N-methacryloyl-(L)-histidine methyl ester), poly(HEMA-MAH) cryogel, a known polymer, in HNO3 was investigated. To determine the heavy ... -
Mixed ligand complexes of acesulfame/nicotinamide with earth alkaline metal cations MgII, CaII, BaII and SrII : synthesis and characterization
(Hittite Journal of Science and Engineering, 2014-12-31)I n the scope of this study, acesulfame (ace, acs)-nicotinamide (na) mixed ligand complexes of Mg(II), Ca(II), Sr(II) and Ba(II) were synthesized for the first time. Possible formulas for complexes were determined as [Mg(H2 ... -
Nanofibers by electrospinning of nylon 6 doped with boron
(Hacettepe University, 2009)In this study, Nylon 6 was successfully cross-linked with boron using formic acid as solution. Electrospinning process was performed by putting hybrid nylon 6/boric acid solutions at different applied voltage in a range ... -
A new adsorptive square-wave stripping voltammetric method for the trace analysis of germanium
(Hacettepe University, 2008)The adsorptive stripping voltammetric determination of trace amounts of germanium(IV) based on the adsorptive accumulation of the germanium(IV)-N-(2-hydroxyphenyl)-3-hydroxysalicylaldimine complex on the hanging mercury ... -
Nicotinamide-modified poly(HEMA-GMA)-Nic cryogels for removal of pesticides
(Turkish Chemical Society, 2018)Chlordane is only one of the persistent pesticides used in some countries despite the ban. Removal of chlordane, a severe threat to all living things, was performed using nicotinamide-modified poly (2-hydroxyethyl ... -
A novel core-shell-based chromatographic method supported by ratio derivative spectrophotometry for the simultaneous determination of perindopril, indapamide, and amlodipine ternary mixtures
(TUBİTAK, 2018)In this work, ratio spectra of the frst derivative spectrophotometric and liquid chromatographic methods have been described for the frst time for the simultaneous determination of perindopril (PER), indapamide (IND), and ... -
Novel mixed ligand complexes of alkaline earth metals with coumarilic acid and nicotinamide
(Turkish Chemical Society, 2021)Coordination compounds with mixed ligands were synthesized with 2A group (Mg2+, Ca2+, Ba2+, Sr2+) alkaline earth metal cations of coumarilic acid and nicotinamide ligands. Afterward, the structural properties of these new ... -
Novel mixed ligand coordination compounds of some rare earth metal cations containing acesulfamato/N,N-diethylnicotinamide
(Scientific Technical Research Council Turkey-Tubitak, 2021)The mixed ligand coordination compounds containing acesulfamato and N,N-diethylnicotinamide biomolecules of some rare earth metal cations (Eu3+, Tb3+, Ho3+, Er3+ and Yb3+) were synthesized, and their structural properties ... -
Novel Non-Metal Cation (NMC) Pentaborate Salts of Some Amino Acids
(Mdpi, 2019)Non-metal cation (NMC) pentaborate structures, in which some amino acids (valine, leucine, isoleucine, and threonine) were used as cations, were synthesized. The structural characterization of molecules was carried out by ... -
Nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole derivatives: Synthesis of pyrrolopyrazinone, pyrrolotriazinone, and pyrrolooxazinone moieties
(Beilstein-Institut Zur Forderung der Chemischen Wissenschaften, 2017)Intramolecular nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole esters is described. Efficient routes towards the synthesis of pyrrolopyrazinone, pyrrolotriazinone and pyrrolooxazinone have been ... -
One-step transformation of a fluoro-based polymer into a superhydrophobic polymer composite
(ACG Publications, 2019)Abstract: We describe the formation of superhydrophobic surfaces by controlling the surface roughness using some simple processing methods, such as annealing at 120 °C, freeze-drying at -40 °C and composite film preparation. ... -
Optimization of the schiff-base reaction of acetylacetone with biogenic amines
(Hitit University, 2017)In this work, optimum conditions for the derivatization reaction of biogenic amines (histamine, tyramine, putrecine, tryptamine, phenylethylamine, cadaverine, spermidine and spermine) with acetylacetone have been determined. ... -
Organic biomolecules bind to phosphate through borate linkages in aqueous solutions
(TÜBİTAK, 2014)Solutions of salicyclic, ascorbic, and citric acids were reacted with boric acid, followed by NaH2PO4. The products, triphosphateborate ester of salicylic acid (1), orthosphateborate ester of ascorbic acid (2), triphosphateborate ... -
Polarographic investigation of dienogest
(Electrochemical Society Inc., 2018)Dienogest (DGN), is an orally administered synthetic progestin that has shown to have selective progesterone receptor (PR) agonistic activity and oral progestational potency on endometrium. In this paper, the investigation ... -
A simple and rapid method for preparing carbon nanopore electrode ensemble by coating a glassy carbon electrode with chromate
(Hitit University, 2016)A simple preparation method for carbon nanopore electrode ensemble (CNEE) was reported. The CNEE consists of a number of pinholes which remain after coating a carbon surface with chromate. The transformation from transient ... -
A simple flow injection spectrophotometric procedure for direct determination of copper(II) in environmental samples
(Chemical Publishing Co., 2014)A new simple, rapid and sensitive flow-injection spectrophotometric detection method has been developed for the on-line determination of copper(II) in environmental water samples. The method is based on the measurement of ... -
Simple, sensitive and reliable LC-DAD method of gemifloxacin determination in pharmaceutical dosage forms
(2012)A sensitive, accurate, rapid, fully validated, reliable and easy method was developed for the quantification of gemifloxacin mesylate (GEM) using liquid chromatography (LC) with DAD detection. In this method; a reversed-phase ... -
Simultaneous determination of three phenolic compounds in water samples by pre-column derivatization coupled with reversed-phase high performance liquid chromatography
(Hacettepe University, 2018)In this study, a sensitive and accurate method for simultaneous separation and determination of three phenolic compounds (phenol, m-cresol and resorcinol) in water by revesed-phase high performance liquid chromatography ... -
Spectroscopic properties of 2,2’-[Thiobis(p-phenylenenitrilo-methylidyne)]bis(4-chloro/bromo/methyl/nitro/methoxy)phenol
(Hacettepe University, 2012)Novel Schiff base has been synthesized from the reaction of 4,4’-diaminodiphenyl sulfide with 2-hydroxy5-substituebenzaldehyde and 2-hydroxynaphtaldehyde. The compounds were characterized by elemental analysis, FT-IR, 1 H ...