“…FA has been quantified by many analytical methods, such as high-performance liquid chromatography (HPLC) coupled with photodiode array wavelength detector (PDA) or UV-Vis detector (Anselmi et al, 2006;Craparo et al, 2009;Kareparamban et al, 2013;Li et al, 2007;Li et al, 2004;Li, Bi, 2003;Lu et al, 2005;Nadal et al, 2015;Picone et al, 2009;Qi et al, 2007;Wang et al, 2011), liquid chromatography tandem mass spectrometry (Guy et al, 2009;Wang et al, 2013;Zhang et al, 2009), UV-Vis spectroscopy (Lima et al, 2013;Merlin et al, 2012), thin layer chromatography (Mabinya, Mafunga, Brand, 2006), high-performance thin layer chromatography (Hingse, Digole, Annapure, 2014;Srivastava, Singh, Singh Rawat, 2012), gas chromatography (Olthof et al, 2003), chemiluminescence (Shen et al, 2013), capillary electrophoresis (Lima, Duarte, Esteves, 2007), micellar electrokinetic chromatography (Guo et al, 2003), electrochemical analysis (Vilian, Chen, 2014) and paper-based platforms (Tee-Ngam et al, 2013). However, HPLC is considered the most reliable and popular methodology for investigating phenolic acids (Barberousse et al, 2008).…”