Paper chromatography of white tea leaf water fraction. Mobile phase: Butanol: Acetic Acid Water (4 : 1 : 5 ). Visual(a); observed under a 365 nm UV lamp (b); observed under 365 nm ultraviolet light, the presence of a tailed blue spot (c); sprayed with AlCL3 spot sight and observed under 365 nm ultraviolet light, a bright blue colored spot appears with tail (d); after being given ammonia vapor and observed under ultraviolet light at 365 nm, a yellowish green spot appeared at Rf 0.62 (e).