Erişim şekli için "info:eu-repo/semantics/closedAccess" Kimya Bölümü listeleme
Toplam kayıt 158, listelenen: 21-40
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Determination of pK a values of cefdinir and cefixime by LC and spectrophotometric methods and their analysis in pharmaceutical dosage forms
(Friedr. Vieweg und Sohn Verlags GmbH, 2011)The pK a values of cefdinir and cefixime, which are used in the treatment of bacterial infections, have been determined precisely in water and methanol-water binary mixtures (20% v/v) using spectrophotometric titration and ... -
Determination of pKa values of some antihypertensive drugs by liquid chromatography and simultaneous assay of lercanidipine and enalapril in their binary mixtures
(Elsevier B.V., 2010)In this study, pKa values were determined using the dependence of the retention factor on the pH of the mobile phase for three ionizable substances, namely, enalapril, lercanidipine and ramipril (IS). The effect of the ... -
Determination of pKa values of some antipsychotic drugs by HPLC-correlations with the kamlet and taft solvatochromic parameters and HPLC analysis in dosage forms
(2013)In this study, ionization constant (pKa) values were determined by using the dependence of the retention factor on the pH of the mobile phase for four ionizable drugs, namely, risperidone (RI), clozapine (CL), olanzapine ... -
Determination of pKa values of some butyrophenones, their sensitive LC-UV analysis in pharmaceutical dosage forms and stress degradation behavior under ICH-recommended stress conditions
(2013)In this study, pKa values of some ionizable butyrophenones, namely, benperidol, droperidol, and haloperidol were determined using by the dependence of the retention factor on pH of the mobile phase. The effect of the mobile ... -
Determination of pKa values of some sulfonamides by LC and LC-PDA methods in acetonitrile-water binary mixtures
(2010)As constantes de dissociação de sete sulfonamidas antibióticas, sulfadiazina, sulfatiazol, sulfamerazina, sulfametazina, sulfamonometoxina, sulfadoxina e sulfametoxazol, foram determinadas em diferentes misturas binárias ... -
Determination of protonation constants of some tetracycline antibiotics by potentiometry and LC methods in water and acetonitrile-water binary mixtures
(2009)Uma estimativa acurada das constantes de dissociação de antibióticos tetraciclina em misturas binárias acetonitrila-água é muito importante para muitas técnicas de separação, como cromatografia líquida e eletroforese capilar ... -
Development and validation of a liquid chromatographic method for concurrent assay of weakly basic drug verapamil and amphoteric drug trandolapril in pharmaceutical formulations
(2012)The analysis of weakly basic drugs such as verapamil by reverse-phase liquid chromatography remains a problem, particularly when present in combination with other drugs such as amphoteric compounds like trandolapril. In ... -
Development and validation of a stability-indicating RP-LC method for the determination of anticancer drug epirubicin in pharmaceuticals
(Taylor and Francis Inc., 2014)In the present paper, sensitive, rapid, and different analytical methodology was developed for the determination of anticancer drug epirubicin (EPR). The mixture of epirubicin and moxifloxacin as internal standard was ... -
Development of a HILIC method for the determination of 5-fluorouracil from nano drug delivery systems and rat skin extracts
(Elsevier B.V., 2018)This is the first report in literature using hydrophilic interaction liquid chromatography (HILIC) in combination with diode array detector (DAD) for stability indicating determination of 5-Fluorouracil (5-FU) from its ... -
Development of novel copper modified cryogels for biochemical isolation
(Springer, 2020)Cu(II) anchored polymeric cryogels are synthesized for the isolation of B12. The poly(2-hydroxyethyl methacrylate) [poly(HEMA)] is used as solid support and N-methacryloyl-l-aspartic acid, is used as a ligand. Synthesis ... -
Diphenic acid/nicotinamide and 1,10-phenanthroline complexes of CoII, CuII and ZnII. Synthesis and structural investigation
(Elsevier Ltd, 2016)The complexes of diphenic acid with CoII and CuII metals and diphenic acid/nicotinamide mixed ligand with CoII and ZnII metals were synthesized and characterized of structural properties by elemental analysis, FT-IR spectra, ... -
Effect of immobilization on the activity of catalase carried by poly(HEMA-GMA) cryogels
(Elsevier B.V., 2019)Hydrogen peroxide is converted by catalase to molecular oxygen and water to remove oxidative stress. In this study, catalase immobilization was performed using poly(2-hydroxyethyl methacrylate-glycidyl methacrylate) ... -
Electroanalytical characteristics of antipsychotic drug ziprasidone and its determination in pharmaceuticals and serum samples on solid electrodes
(Elsevier B.V., 2010)Ziprasidone is a psychotropic agent used for the treatment of schizophrenia. Its oxidation was investigated electrochemically at boron-doped diamond and glassy carbon electrodes using cyclic, differential pulse, and square ... -
Electroanalytical characterization of levodropropizine and its voltammetric determination in pharmaceuticals
(2013)Levodropropizine is a cough suppressant and easily oxidizable at the carbon-base electrodes. The electrooxidative behavior and determination of levodropropizine on glassy carbon and boron-doped diamond electrodes were ... -
Electrochemical approach for the sensitive determination of anticancer drug epirubicin in pharmaceuticals in the presence of anionic surfactant
(Editions de l'Academie Republique Populaire, 2013)In this research, sensitive, rapid, different electrochemical methods were developed for the determination of anticancer drug epirubicin. The aim of the study was to fully validated determination of epirubicin in ... -
Electrochemical Approach on Mechanism of an Oral Progestin in Aqueous Media and its Fully Validated Detection via a Carbon-Metal Based Composite Sensor
(Wiley-VCH Verlag, 2018)Dienogest is a synthetic oral progestogen with unique pharmacological properties that is used orally in the treatment of endometrosis. The first time, the detailed electrochemical mechanism of dienogest is investigated in ... -
Electrochemical corrosion properties of metal alloys used in orthopaedic implants
(2009)This study concerns an investigation of the corrosion behavior of 316 stainless steel, CoCrMo and Ti6Al4V alloys in simulated body conditions (ringer lactate) at 37 °C by the use of Tafel plots, mixed potential and ... -
Electrochemical evaluation and determination of antiretroviral drug fosamprenavir using boron-doped diamond and glassy carbon electrodes
(2010)Fosamprenavir is a pro-drug of the antiretroviral protease inhibitor amprenavir and is oxidizable at solid electrodes. The anodic oxidation behavior of fosamprenavir was investigated using cyclic and linear sweep voltammetry ... -
Electrochemical Glucose Detection Using PdAg Nanoparticles Anchored on rGO/MWCNT Nanohybrids
(Springer/Plenum Publishers, 2020)The combination of multi-walled carbon nanotube (MWCNT) and graphene (Gr) to extend their unique physicochemical properties to 3-dimensions (3D) is known to be an effective way to achieve high catalytic properties in ... -
Electrochemical investigation of Zinc(II)-furdap amide complex in DMSO medium
(2009)The electrochemical behavior of Zinc(II)-furdap amide complex has been investigated by the use of several electrochemical methods in DMSO on platinum electrode. Both the ligand and the complex gave one electron transfer ...