“…Based on these considerations, the simultaneous analysis of cinnamaldehyde and benzaldehyde are very important. Trans-cinnamaldehyde has been determined by spectrofluoromety (Tsai and Chen 1984), highperformance liquid chromatography (HPLC; Katayama, Mukai, and Taniguchi 1990;Lee et al 1995;Okamura et al 1999), micellar electrokinetic chromatography (Huang, Kuo, and Hsieh 1997), and gas chromatography (Friedman, Kozukue, and Harden 2000;Yu, Lai, and Tan 2006;Blakemore and Thompson 1983). Also, the benzaldehyde was analyzed by several methods such as differential pulse polarography (Kazemifard et al 2002), HPLC (Shemesh, Karschimkus, and Rowley 2005), gas chromatography (GC; Kazemifard et al 2003;Hignite, Shen, and Azarnoff 1978), and derivative ultraviolet (UV) spectrometry (Hewala 1993).…”