Please use this identifier to cite or link to this item: http://hdl.handle.net/11513/1982
Title: Çok duvarlı karbon nanotüplerle modifiye edilen bor katkılı elmas elektrotlar ile askorbik asit varlıgında levodopa tayini / Determination of levodopa in the presence of ascorbic acid using boron doped diamond electrodes modified with multi-walled carbon nanotubes
Authors: KARAGÖZ, TUBA
Keywords: Kimya = Chemistry
Issue Date: 2015
Abstract: BOR KATKILI ELMAS ELEKTROTLARI LEVADOPANIN ELEKTROOKSİDASYONU VE ASKORBİK ASİT VARLIĞINDA SEÇİMLİ OLARAK SAPTANMASI İÇİN ÇOK DUVARLI KARBON NANOTÜPLERLE MODİFİYE EDİMİŞTİR. ÇOK DUVARLI KARBON NANOTÜPLERLE MODİFİYE EDİLEN BOR KAKILI ELMAS ELEKTROTU LEVODOPANIN YÜKSELTGENMESİNE ÇOK YÜKSE BİR ELEKTRO KATALİTİK ETKİ GÖSTERMİŞ VE AKIM CEVABINDAKİ BELİRGİN ARTIŞ SERGİLEMİŞTİR. ELDE EDİLEN MODİFİYE ELEKRTOT pH'SI 4.0 OLAN 0.1 M FOSFAT TAMPONUNDA(PBS) LEVODOPANIN SAPTANMASINA UYGULANMIŞTIR. SAPTAMA SINIRI 1.97*10-9M OLAN KALİBRASYON GRAFİĞİ 1.50*10-7-7.04*10-6M KONSANTRASYON ARALIĞINDA DOGRUSALDIR. KARBON NANOTÜPLERLE YÜZEY MODİFİKASYONU TÜRLERİN YÜKSELTGENMESİ İÇİN GEREKEN POTANSİYELİ DÜŞÜRMÜŞ, VOLTAMETRİK DAVRANIŞLARI GELİŞTİRMİŞ VE LEVODOPANIN TEKRARLANABİLİR BİR ŞEKİLDE SAPTANMASINA İMKAN VERMİŞTİR. HAZIRLANAN MODİFİYE ELEKTROT SİSTEMİ İLAÇ ÖRNEKLERİNE MÜKEMMEL BİR ŞEKİLDE UYGULANMIŞTIR. BORON DOPED DIAMOND ELECTRODES HAVE BEEN MODIFIED WITH MULTI-WALLED CARBON NANOTUBES FOR THE ELECTROOXİDATION OF LEVODOPA AND İTS SELECTIVE DETERMİNATION IN THE PRESENCE OF ASCORBİC ACİD.THE BORON DOPED DIAMOND MODİFİED WİTH MULTI-WALLED CARBON NANOTUBES A BORON DOPED DIAMOND ELECTRODE HAS BEEN MODİFİED MULTI-WALLED SHOWED A HİGH ELECTROCATALYTIC EFFECT TOWARDS THE OXIDATION OF LEVODOPA AND EXHİBİTED AMARKED ENHANCEMENT OF THE CURRENT RESPONSE.THE MODIFIED ELECTRODE WAS USED FOR THE DETERMİNATİON OF LEVODOPA IN 0.1M PHOSPHATE BUFFER SOLUTION(PBS) AT pH 4.0. THE CALIBRATION CURVE IS LINER IN THE CONCENTRATION RANGE FROM 1.5*10-7 TO 7.04*10-6M WITH A DETECTION LIMIT OF 1.97*10-9 M. THE SURFACE MODİFİCATION WİTH MWCNT SERVED TO REDUCE THE POTENTIAL REGUIRED TO OXIDIZE SPECIES, IMPROVE VOLTAMMETRIC BEHAVIOUR AND ENABLES A REPRODUICIBLE DETECTION FOR LEVODOPA. THE MODIFIED ELECRODE SYSTEM HAS SUCCESSFULLY BEEN APPLIED TO THE PHARMACEUTICAL FORMULATIONS.
URI: http://hdl.handle.net/11513/1982
Appears in Collections:Fen Bilimleri Enstitüsü

Files in This Item:
File Description SizeFormat 
444129.pdf621.07 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.