Yazar "Ak, Dilek" için Analitik Kimya Anabilim Dalı listeleme
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The antioxidants ?-lipoic acid and N-acetylcysteine reverse memory impairment and brain oxidative stress in aged SAMP8 mice
Farr, S. A.; Poon, H. F.; Ak, Dilek; Drake, J.; Banks, W. A.; Eyerman, E.; Morley, J. E. (2003)Oxidative stress may play a crucial role in age-related neurodegenerative disorders. Here, we examined the ability of two antioxidants, ?-lipoic acid (LA) and N-acetylcysteine (NAC), to reverse the cognitive deficits found ... -
The antioxidants alpha-lipoic acid and N-acetylcysteine reverse memory impairment and brain oxidative stress in aged SAMP8 mice
Farr, SA; Poon, HF; Ak, Dilek; Drake, J; Banks, WA; Eyerman, E; Morley, JE (Blackwell Publishing LTD, 2003)Oxidative stress may play a crucial role in age-related neurodegenerative disorders. Here, we examined the ability of two antioxidants, alpha-lipoic acid (LA) and N -acetylcysteine (NAC), to reverse the cognitive deficits ... -
Capillary electrophoretic behaviour and determination of enoxacin in pharmaceutical preparations and human serum
A validated capillary electrophoretic method with UV detection is described for the determination of enoxacin [ENX] in pharmaceutical preparation and human serum. The experiments were carried out in a fused-silica capillary ... -
A capillary zone electrophoretic method for the determination of nimesulide in pharmaceutical preparation and serum
Ak, Dilek; Tuncel, M; Aboul-Enein, Hassan Y. (Wiley-V C H Verlag GMBH, 2001)A simple capillary zone electrophoretic (CZE) method was developed to determine nimesulide in pharmaceutical tablet formulations and serum. Method development was conducted in a fused-silica capillary using a background ... -
A capillary zone electrophoretic method for the determination of nimesulide in pharmaceutical preparations
Ak, Dilek (1998)Nimesulide is a non-steroidal anti-inflammatory drug with analgesic and antipyretic properties. A simple capillary zone electrophoretic method which can be applied to determine the content of nimesulide in tablets is ... -
CE determination of droperidol in tablets and human serum
Tunçel, Muzaffer; Ak, Dilek; Yeniceli, Duygu; Uslu, B.; Doğan, B. (Springer Heidelberg, 2006)A capillary electrophoretic method was described for the determination of droperidol in pharmaceutical tablets and human serum. Droperidol and internal standard, lansoprazole, were separated on an uncoated fused-silica ... -
Contribution of peroxynitrite to the beneficial effects of preconditioning on ischaemia-induced arrhythmias in rat isolated hearts
Altup, S.; Demiryürek, A. T.; Ak, Dilek; Tunçel, Muzaffer; Kanzk, L. (2001)We studied the effects of urate, a peroxynitrite scavenger, on ischaemia- and peroxynitrite-induced preconditioning in rat isolated hearts. Isolated hearts perfused with Krebs-Henseleit solution were preconditioned either ... -
Determination of Amlodipine in pharmaceutical formulations by differential-pulse voltammetry with a glassy carbon electrode
Altıokka, Göksel; Ak, Dilek; Tunçel, Muzaffer; Aboul-Enein, Hassan Y. (Wiley-V C H Verlag GMBH, 2002)A differential-pulse voltammetric method was developed for the determination of amlodipine based on the oxidation of the dihydropyridine group on the surface of glassy carbon electrode under stationary and rotating conditions. ... -
The determination of bupropion hydrochloride in pharmaceutical dosage forms by original UV - and second derivative UV spectrophotometry, potentiometric
Duygu, Yeniceli; Ak, Dilek (2010)Bupropion hidroklorür'ün (BUP) farmasötik tabletlerindeki tayini için spektrofotometrik, potansiyometrik ve kondüktometrik yöntemler geliştirilmiştir, ilk yöntem olan orjinal UV-spektrofotometri yöntemi için optimal dalgaboyu ... -
The determination of bupropion hydrochloride in pharmaceutical dosage forms by original UV- and second derivative UV spectrophotometry, potentiometric and conductometric methods [Bupropion Hidroklorür'un Orjinal UV- ve 2. Tiirev UV Spektrofotometri, Potansiyotnetri ve Kondüktotnetri Yöntemleri He Farmasötik Dozqj Formlanndaki Tayini]
Yeniceli, Duygu; Ak, Dilek (2010)Spectrophotometric, potentiometric and conductometric methods are developed for the determination of bupropion hydrochloride (BUP) in pharmaceutical tablets. For the first method, original UV-spectrophotometry, 252 nm was ... -
Determination of carbamazepine and its main metabolite carbamazepine-10, 11-epoxide in rat brain microdialysate and blood using ESI-LC-MS (ion trap)
Şener, E.; Korkmaz, Orhan Tansel; Yeniceli, Duygu; Ak, Dilek; Tunçel, Muzaffer; Tuncel, N. (Springer Heidelberg, 2007)A new analytical method has been developed and validated for determination of the anti-epileptic drug carbamazepine (CBZ) and its main metabolite carbamazepine- 10, 11 -epoxide (CBZ-E) using ESl-LC-MS (ion trap). The ... -
The determination of hydralazine hydrochloride by polarography
Tunçel, Muzaffer; Ak, Dilek; Güler, E.; Genç, Lütfi (1993)[No abstract available] -
Determination of lansoprazole in pharmaceutical capsules by flow injection analysis using UV-detection
Yeniceli, Duygu; Ak, Dilek; Tunçel, Muzaffer (2004)The direct determination of lansoprazole by using a flow injection analysis (FIA) with UV-detection and its application to the pharmaceutical capsules is described, in this study. The best carrier solvent was found to be ... -
The determination of lansoprazole in pharmaceutical preparation by capillary electrophoresis
Ak, Dilek; Tuncel, M; Aboul-Enein, Hassan Y. (Vieweg, 2001)A capillary electrophoretic method for the determination of lansoprazole in pharmaceutical preparations is described. The analysis was performed in a fused silica capillary using 20 mM borate buffer at pH 8.7 as a background ... -
Determination of leflunomide in pharmaceutical tablets by flow-injection analysis
Yeniceli, Duygu; Ak, Dilek; Tunçel, Muzaffer (Taylor & Francis Inc, 2005)A flow injection analysis (FIA) of leflunomide using UV-detection is described, in this study. The most suitable carrier solvent was found to be an aqueous solution of ethanol (25%, v/v). Leflunomide was determined at the ... -
Determination of leflunomide in tablets by high performance liquid chromatography
Yeniceli, Duygu; Ak, Dilek; Tunçel, Muzaffer (Elsevier Science BV, 2006)In the present study, a reverse phase high performance liquid chromatography (HPLC) method was validated and applied for the determination of leflunomide in tablets. Chromatographic separation of leflunomide and oxazepam ... -
Determination of rutin in Hypericum perforatum extract bu capillary electrophoresis
Ak, Dilek; Kırımer, Neşe; Tunçel, Muzaffer; Aboul-Enein, Hassan Y. (Marcel Dekker Inc, 2001)A capillary zone electrophoretic (CZE) method for the determination of rutin in an ethanolic extract of the aerial parts of Hypericrum perforatum (Hypericaceae) is described. The analysis was performed using a fused-silica ... -
Determination of Sotalol in tablets and serum by CZE
Ak, Dilek; Dal, Arın Gül; Tunçel, Muzaffer (Springer Heidelberg, 2007)A validated capillary zone electrophoretic method for analysis of sotalol is described. Analysis was performed in a fused-silica capillary with 20 mM phosphate buffer (pH 4.20) containing 10% (v/v) acetonitrile as background ... -
A differential pulse voltammetric determination of nisoldipine using glassy carbon electrode in pharmaceutical preparations
Ak, Dilek; gökoren, N; Tunçel, Muzaffer (Marcel Dekker Inc, 1998)A differential pulse voltammetric method is described for the determination of nisoldipine based on the oxidation of the dihydropyridine group on the surface of a rotating glassy carbon disk electrode. The voltammetric ...