(2) Partition Ratio k k: Partition Ratio or Capacity factor k 7-2 P,q: mass fraction in the stationary and mobile phase D+q=m,++- 7-3 。+ K kB β: phase ratio(2) Partition Ratio k p, q : mass fraction in the stationary and mobile phase k: Partition Ratio or Capacity factor m s q p k = + = + =1 + s + m m s m s w w w w w w p q k V V q p q V p V C C K s m m s m s = = = = / /  : phase ratio 7-2 7-3 7-4