TY - JOUR T1 - Development of an ultra-sensitive method using nafion and multi-walled carbon nanotube coated glassy carbon electrode for atenolol determination TT - Atenolol tayini için nafion ve çok duvarlı karbon nanotüp kaplı camsı karbon elektrot kullanılarak ultra hassas yöntem geliştirilmesi AU - Çelik Kazıcı, Hilal PY - 2018 DA - December JF - Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi PB - Pamukkale Üniversitesi WT - DergiPark SN - 2147-5881 SP - 1287 EP - 1292 VL - 24 IS - 7 LA - en AB - Atenolol(Scheme 1) is antihypertensive drug that form β-blocker group, which widelyused in the treatment of hypertension In this study, the redox properties ofthe Tensinor drug used in blood pressure treatment were examined on modifiedglassy carbon electrode and the electrodes prepared by coating carbon nanotubeson this modified electrode. In order to investigate the effects of nafioncoated multi-walled glass nanotube (MWCNT / NGCE) electrode response and nafioncoated glassy carbon electrode (NGCE) and electrode responses of only glassycarbon electrode (GCE) surfaces on the support electrolyte, pH and scan rate,the cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methodswere used. Atenolol (ATN) was observed in the Britton-Robinson (BR) buffersolution (pH 7.0) thereabouts 1.11 V (vsAg / AgCl (3.0 mol L-1 KCl). Voltammetricmethod reacted linear at a concentration range between 3x10-5 μM and 9x10-2 μMunder optimum analytical experimental conditions. The results of Tensinor'slimit of detection on the Britton-Robinson (BR) (pH=7) buffer were found to be7.67 x 10-5 mM and 2.5 x 10-4 mM, respectively. Additionally, in the study,interference effects experiments were performed with auxiliary substances usedin the preparation of medicines and no negative effect was observed. KW - Cyclic voltammetry KW - Atenolol KW - Carbon nano tube N2 - Atenolol(Şekil 1), hipertansiyon tedavisinde yaygın olarak kullanılan β-bloker grubunuoluşturan antihipertansif ilaçtır. Bu çalışmada; Tansiyon tedavisindekullanılan Tensinör ilacının redoks özellikleri, modifiye camsı karbon elektrotve bu modifiye elektrot üzerine karbon nano tüp kaplanarak hazırlanmışelektrotlarda incelenmiştir. Nafion kaplı çok duvarlı karbon nanotüp (MWCNT/NGCE)elektrot yanıtı ile Nafion kaplı camsı karbon elektrot (NGCE) ve sadece camsıkarbon elektrot (GCE) yüzeylerinin elektrot yanıtlarının destek elektroliti,pH, ve tarama hızı üzerine etkilerini araştırmak için Çevrimsel voltametri (CV)ve Diferansiyel puls voltametri (DPV) yöntemleri kullanılmıştır. Atenolol (ATN)Britton-Robinson (BR) tampon çözeltisinde (pH 7.0) 1.11 V (vsAg/AgCl (3.0 molL-1 KC1) civarında gözlenmiştir. 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