shows that the highest overall resolution was obtained
using the mobile phase prepared with (67:16:17 v/v/v) water:
acetonitrile:methanol, because only this mobile phase separated
the spectra of the epicatechin (EC), epigallocatechin gallate (EGCG)
and epigallocatechin (EGC) peaks. Therefore this mobile phase was
used for all subsequent analysis.