Nuengchamnong, N., Hermans-Lokkerbol, A., & Ingkaninan, K. (2004). Separation and Detection of the Antioxidant Flavonoids, Rutin and Quercetin, Using HPLC Coupled on-line With Colorimetric Detection of Antioxidant Activity. Asian Health, Science and Technology Reports, 12(2), 25–37. retrieved from https://ph03.tci-thaijo.org/index.php/ahstr/article/view/2446