Yazar "Gümüştaş, Mehmet" için listeleme
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Separation and elution order of the enantiomers of some beta-agonists using polysaccharide-based chiral columns and normal phase eluents by high-performance liquid chromatography
Gümüştaş, Mehmet; Özkan, Sibel Ayşıl; Chankvetadze, Bezhan (Elsevier B.V., 2016)In this study separation of enantiomers of 8 chiral ?-agonists were studied on 6 polysaccharide-based chiral columns in polar-organic and alcohol-hydrocarbon mobile phases. No separation of enantiomers was observed on any ... -
Simple, sensitive and reliable LC-DAD method of gemifloxacin determination in pharmaceutical dosage forms
Gümüştaş, Mehmet; Özkan, Sibel Ayşıl (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 and validation of emtricitabine, rilpivirine and tenofovir from biological samples using LC and CE methods
Gümüştaş, Mehmet; Çağlayan, Mehmet Gökhan; Onur, Feyyaz; Özkan, Sibel Ayşıl (John Wiley and Sons Ltd, 2018)A combination of antiretroviral agents is frequently used in effective treatment of the human immunodeficiency virus infection. In this study, two different separation methods are presented for the simultaneous determination ... -
Simultaneous determination and validation of some binary mixtures of antihypertensive drugs using ratio derivative spectrophotometric method
Kurbanoğlu, Sevinç; Gümüştaş, Mehmet; Özkan, Sibel Ayşıl (Maik Nauka Publishing / Springer SBM, 2014)Ratio derivative spectrophotometric technique is presented for the rapid, accurate and precise simultaneous determination of olmesartan medoxomil (OLM), hydrochlorothiazide (HCT), and zofenopril (ZOF) as well as HCT binary ... -
Simultaneous determination of amlodipine besylate and rosuvastatin calcium in binary mixtures by voltammetric and chromatographic techniques
Karadaş Bakırhan, Nurgül; Gümüştaş, Mehmet; Uslu, Bengi; Özkan, Sibel Ayşıl (Institute for Ionics, 2016)Voltammetric and liquid chromatographic (LC) methods have been developed for the simultaneous determination of amlodipine besylate (AML) and rosuvastatin calcium (ROS) for the first time. Detailed electrochemical behavior ... -
Simultaneous estimation and validation of some binary mixtures of antihypertensive drugs by RP-LC methods using two new generation silica columns
Kurbanoğlu, Sevinç; Gümüştaş, Mehmet; Özkan, A. S. (Elsevier B.V., 2013)Two reversed phase liquid chromatographic (RP-LC) techniques are presented for the rapid, accurate, precise, simultaneous determination of olmesartan-hydrochlorothiazide and zofenopril-hydrochlorothiazide binary mixtures ... -
Simultaneous estimation of ceftazidime and ceftizoxime in pharmaceutical formulations by HPLC method
Şanlı, Senem; Şanlı, Nurullah; Gümüştaş, Mehmet; Özkan, Sibel Ayşıl; Karadaş, Nurullah; Aboul-Enein, Hassan Y. (2011)The aim of the present study was to develop a fast, sensitive and reliable method for rapid screening of cephalosporin injectable dosage forms namely ceftazidime and ceftizoxime to the detection of counterfeit and substandard ... -
UPLC versus HPLC on drug analysis: Advantageous, applications and their validation parameters
Liquid chromatography (LC) is a separation technique used in many different areas to aid the identification and quantification of substances in various matrices. LC techniques with various detection modes have been widely ... -
Validated electroanalytical and RP-LC assay of ertapenem in its pharmaceutical dosage form
Gümüştaş, Mehmet; Karadaş Bakırhan, Nurgül; Özkan, Sibel Ayşıl (Editions de l'Academie Republique Populaire, 2013)Ertapenem is a member of carbapenem group beta-lactam antibiotics. The electrochemical behavior of ertapenem at the surface on a boron-doped diamond electrode is described. It is investigated and determined using cyclic, ... -
A validated stability-indicating RP-LC method for the simultaneous determination of amlodipine and perindopril in tablet dosage form and their stress degradation behavior under ICH-recommended stress conditions
Gümüştaş, Mehmet; Özkan, Sibel Ayşıl (2013)A stability-indicating RP-LC assay method was developed for the simultaneous determination of the cardiovascular drugs amlodipine and perindopril in the presence of degradation products generated from forced decomposition ... -
Voltammetric and RP-LC assay for determination of benidipine HCl
The detailed electrooxidative behavior of benidipine (BEN) has been studied by using glassy carbon (GC) and boron-doped diamond (BDD) electrodes. Using cyclic voltammetry, depending on the pH values and the working electrodes, ...