• 2022-06-11
    Rf在薄层色谱法(TLC)中的可用范围和最佳范围分别为()
    A: 0.1~0.7,0.2~0.5
    B: 0.2~0.8,0.3~0.5
    C: 0.2~0.8,0.3~0.6
    D: 0.1~0.8,0.2~0.5
    E: 0.1~0.7,0.3~0.5