Table 1. Rf values (x 100) of willow leaf flavonoids in various solvent systems.
Solvent1
FlavonoidForestalBAW27% AC
Luteolin66
7-glucoside4403
Quercetin41
3-glucoside5811
3-rutinoside4528
Rhamnazin58
3-glucoside6210
3-rutinoside4921
  • 1. Solvents: Forestal (acetic acid: HCL: water, 30:3:10); BAW (n-butanol:acetic acid: water, 4:1:5, upper phase); 2% AC (2% acetic acid).