voltammetry (DPV) and square wave voltammetry (SWV). Consequently, Que and Kae can easily be determined as independent and simultaneously by using modifier molecule modified GC sensor electrode. Following step of this study will focus on the quantitative determination of those flavonoid derivatives in natural sample. References 1. E. T. Denisov, and I. B. Afanasev, Chemistry of antioxidants in oxidation and antioxidants in organic chemistry and biology, CRC Press, Taylor & Francis Group 6000 Broken Sound Parkway NW, pp. 488, (2005). 2. Halliwell, Food Sci. Agr. Chem. 1, 67, (1999). 3. R. L. Prior, and G. Cao, Free Radical Bio. Med. 27, 1173, (1999). 4. M. S. Xu, M. F. Luo, X. H. Xing, and H. Z. Chen, Food Bioprod. Process. 84, 237, (2006). 5. G. Chen, X. Ma, F. Meng, and G. Li, Bioelectrochemistry 72, 169, (2008). 6. M. Katalinic, G. Rusak, J. Domacinovic’ Barovic, G. Sinko, D. Jelic, R. Antolovic, and Z. Kovarik, Eur. J. Med. Chem. 45, 186, (2010). 7. W. Ren, Z. Qian, H. Wang, L. Zhu, and Zhang, L. Med. Chem. Res. 23(4), 519, (2003). 8. J. B. He, Y. Wang, N. Deng, and X. Q. Lin, Bioelectrochemistry 71, 157, (2007). 9. A. Karadag, B. Ozcelik, and S. Saner, Food Anal. Method. 2, 41, (2009). 10. A. İsbir-Turan, E. Kılıç, Z. Üstündağ, H. Ekşi, A. O. Solak, and B. Zorer, J. Solid State Electrochem. 16, 235, (2012). 11. E. Mulazımoglu, and E. Ozkan, E-J. Chem. 5(3), 539, (2008). 12. E. Mulazimoglu, Energy Educ. Sci. Technol. Part A 28(1), 393, (2011). 13. J. Xue, X. Ying, J. Chen, Y. Xian, and L. T. Jin, Anal. Chem. 72, 5313, (2000). 14. R. Kubant, C. Malinski, A. Burewicz, and T. Malinski, Electroanalysis 18, 410, (2006). 15. J. S. Corte, S. G. Granados, A. Ordaz, S. Griveau, and F. Bediouib, Electroanalysis 19, 61, (2007).
KEYWORDS Pulse Techniques, Antioxidant, Sensor electrode, Chemically modified electrodes
391