... Dch chit nc cn cũn li chit tip ln bng cloroform, ln chit 300ml, ln l 200ml Dch chit nc cn sau chit bng cloroform chit tip bng etyl axetat Do etyl axetat tan mt phn dch chit nờn lng dung mụi s ... Dch chit nc cn cũn li chit tip ln bng cloroform, ln chit 300ml, ln l 200ml 38 Dch chit nc cn sau chit bng cloroform chit tip bng etylaxetat Do etylaxetat tan mt phn dch chit nờn lng dung mụi ... dung mụi Chit bng Cloroform Dch chit cloroform Dch ethanol -nc Cn chit n-hexan (H) (g) 0.143% Lm khụ Loi dung mụi Chit bng Etylaxetat Cn chit Cloroform (C) (g) 0.047% Dich ethanol- nc Dch chit Etylaxetat...