Yazar "Özcan, Ali" için listeleme
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A novel approach for the determination of paracetamol based on the reduction of N-acetyl-p-benzoquinoneimine formed on the electrochemically treated pencil graphite electrode
Özcan, Ali; Şahin, Yücel (Elsevier Science BV, 2011)A novel approach was proposed for the simple and rapid electrochemical determination of paracetamol (PC) in the presence of uric acid in body fluids. The voltammetric determination of PC is based on the electrochemical ... -
A novel approach for the selective determination of tryptophan in blood serum in the presence of tyrosine based on the electrochemical reduction of oxidation product of tryptophan formed in situ on graphite electrode
Özcan, Ali; Şahin, Yücel (Elsevier Advanced Technology, 2012)In this study, a novel method was proposed for the selective determination of tryptophan (TRP) in blood serum in the presence of tyrosine. This method is based on the electrochemical reduction of 2-amino-3-(5-oxo-3,5-dih ... -
Poly(pyrrole-3-carboxylic acid)-modified pencil graphite electrode for the determination of serotonin in biological samples by adsorptive stripping voltammetry
Özcan, Ali; İlkbas, Salih (Elsevier Science Sa, 2015)In this study, we have focused on two subjects which are the preparation of a poly(pyrrole-3-carboxylicacid) modified pencil graphite electrode (p(P3CA)/PGE) and the development of a novel sensing strategy for the determination ... -
Preparation of a disposable and low-cost electrochemical sensor for propham detection based on over-oxidized poly(thiophene) modified pencil graphite electrode
Özcan, Ali; Gürbüz, Mustafa; Özcan, Ayça Atılır (Elsevier Science BV, 2018)In this study, an electrochemical sensor was developed for the determination of propham (PRO) in potato, human urine and river water samples based on the over-oxidized poly(thiophene) modified pencil graphite [PG/p(Thp)-Ox] ... -
Preparation of a double-step modified carbon paste electrode for the voltammetric determination of propham via bulk modification with fumed silica and drop-casting of maghemite-modified fumed silica nanocomposite
Özcan, Ali; Gürbüz, Mustafa; Özbal, Ayşegül (Elsevier Science Sa, 2018)In this study, a double-step modified carbon paste electrode (CPE) was prepared for the voltammetric determination of propham (PRO). In the first step, modification of CPE was performed by incorporating 12.5% fumed silica ... -
Preparation of Activated Disposable Pencil Graphite Electrode for the Selective and Sensitive Determination of a Fluoroquinolone Antibiotic: Levofloxacin
Gürbüz, Mustafa; Özcan, Ayça Atılır; Özcan, Ali (Bentham Science Publ LTD, 2018)Background: Levofloxacin (LVX) is one of the fluoroquinolone antibiotics that possess a wide spectrum of bactericidal activity against both Gram-positive and Gram-negative bacteria. Because of its side effects and its ... -
Preparation of Fe2O3 modified kaolin and application in heterogeneous electro-catalytic oxidation of enoxaciri
Özcan, Ali; Özcan, Ayça Atılır; Demirci, Yusuf; Şener, Erol (Elsevier Science BV, 2017)Preparation and use of an iron containing catalyst, Fe2O3 modified kaolin (Fe2O3-KLN), was investigated to develop a heterogeneous electro-Fenton process for the electrochemical oxidation of enoxacin (ENXN). The characterizations ... -
Preparation of poly(3,4-ethylenedioxythiophene) nanofibers modified pencil graphite electrode and investigation of over-oxidation conditions for the selective and sensitive determination of uric acid in body fluids
Özcan, Ali; İlkbas, Salih (Elsevier Science BV, 2015)In this study, we have performed the preparation of over-oxidized poly(3,4-ethylenedioxythiophene) nanofibers modified pencil graphite electrode (Ox-PEDOT-nf/PGE) to develop a selective and sensitive voltammetric uric acid ... -
Preparation of selective and sensitive electrochemically treated pencil graphite electrodes for the determination of uric acid in urine and blood serum
Özcan, Ali; Şahin, Yücel (Elsevier Advanced Technology, 2010)In this study, the preparation of electrochemically treated pencil graphite (ETPG) electrodes in the mixture of lithium perchlorate and sodium carbonate solutions was investigated for the first time in the literature. The ... -
Propham mineralization in aqueous medium by anodic oxidation using boron-doped diamond anode: Influence of experimental parameters on degradation kinetics and mineralization efficiency
Özcan, Ali; Şahin, Yücel; Koparal, Ali Savaş; Oturan, Mehmet A. (Pergamon-Elsevier Science LTD, 2008)This study aims the removal of a carbamate herbicide, propham, from aqueous solution by direct electrochemical advanced oxidation process using a boron-doped diamond (BDD) anode. This electrode produces large quantities ... -
Removal of Acid Orange 7 from water by electrochemically generated Fenton's reagent
Özcan, Ali; Oturan, Mehmet A.; Oturan, Nihal; Şahin, Yücel (Elsevier Science BV, 2009)The removal of azo dye Acid Orange 7 (AO7) from water was investigated by the electro-Fenton technology using electrogenerated hydroxyl radicals ((OH)-O-center dot) which leads to the oxidative degradation of AO7 LIP to ... -
Removal of propham from water by using electro-Fenton technology: Kinetics and mechanism
Özcan, Ali; Şahin, Yücel; Oturan, Mehmet A. (Pergamon-Elsevier Science LTD, 2008)The removal of a carbamate herbicide, propham, from aqueous solution has been carried out by the electro-Fenton process. Hydroxyl radical, a strong oxidizing agent, was generated catalytically and used for the oxidation ... -
Selective and Sensitive Electrochemical Sensing of Serotonin in Human Blood Serum By Means of Electrochemically Treated Pencil Graphite Electrode
Özcan, Ali (2016)Serotonin (SER) is an important monoamino-neurotransmitter found in body fluids. The determination of SER is a very important issue because its concentration behaves as an indicator in the diagnosis of many illnesses. ... -
Selective and Sensitive Voltammetric Determination of Dopamine in Blood by Electrochemically Treated Pencil Graphite Electrodes
Özcan, Ali; Şahin, Yücel (Wiley-V C H Verlag GMBH, 2009)Preparation of electrochemically treated pencil graphite (ETPG) electrode and its application for the determination of DA in the presence of ascorbic (AA) and uric (UA) acids were investigated. Several important parameters ... -
The Substituent Effects on the Structure and Surface Morphology of Polyaniline
Şahin, Mutlu; Özcan, Levent; Özcan, Ali; Usta, Betül; Şahin, Yücel; Pekmez, Kadir (Wiley, 2010)In this work, poly(2-fluoroaniline), poly(2-chloroaniline), poly(2-methylaniline), and poly(N-ethylaniline) were prepared by a self-assembly method using an oxidizing system consisting of a dopant anion, p-toluene sulfonate ... -
Synergistic Effect of Lithium Perchlorate and Sodium Hydroxide in the Preparation of Electrochemically Treated Pencil Graphite Electrodes for Selective and Sensitive Bisphenol A Detection in Water Samples
Özcan, Ali (Wiley-V C H Verlag GMBH, 2014)In this study, pencil graphite electrodes were activated electrochemically in the presence of different supporting electrolytes and used for the selective and sensitive determination of bisphenol A (BPA) in water samples. ... -
Voltammetric determination of 17-beta-estradiol by cysteamine self-assembled gold nanoparticle modified fumed silica decorated graphene nanoribbon nanocomposite
Özcan, Ali; TopçuoğullArı, Duygu (Elsevier Science Sa, 2017)In this study, preparation of a modified carbon paste electrode was investigated for the determination of 17-beta-estradiol (EST) in milk and pharmaceutical samples. Cysteamine self-assembled gold nanoparticle modified ... -
Yerel yönetim birlikleri
Özcan, Ali (Anadolu Üniversitesi, 1996)Anayasamızla belirlenen yerel yönetim birimlerimiz olan, il özel idareleri, belediyeler ve köyler ; yasal, ekonomik ve teknik zorlukları aşabilmek için birlikler kurma yoluna, çeşitli zaman ve yerlerde gerek duymuş ve gerek ...