表1.
H:E:M:W | Rf | α1 | α2 | α3 | α4 | ||||
---|---|---|---|---|---|---|---|---|---|
No. 1 | No. 2 | No. 3 | No. 4 | No. 5 | |||||
5:5:6:4 | 0.04 | 0.10 | 0.20 | 0.26 | 0.28 | 2.50 | 2.00 | 1.30 | 1.08 |
5:5:5:5 | 0.16 | 0.24 | 0.42 | 0.50 | 0.54 | 1.50 | 1.75 | 1.19 | 1.08 |
4:6:6:4 | 0.18 | 0.24 | 0.42 | 0.48 | 0.54 | 1.33 | 1.75 | 1.14 | 1.13 |
4:6:5:5 | 0.22 | 0.30 | 0.49 | 0.60 | 0.64 | 1.36 | 1.63 | 1.22 | 1.07 |
4:6:4:6 | 0.31 | 0.38 | 0.58 | 0.66 | 0.70 | 1.23 | 1.53 | 1.14 | 1.06 |
3:7:3:7 | 0.58 | 0.64 | 0.80 | 0.84 | 0.88 | 1.10 | 1.25 | 1.05 | 1.05 |
H:E:M:W: n-hexane-ethyl acetate-methanol-water, v/v/v/v; α1=Rf2/Rf1, α2=Rf3/Rf2, α3=Rf4/Rf3, α4=Rf5/Rf4.