SEARCH Articles Figures Tables Elution Modes Gradient elution Gradient elution mode acetonitrile Gradient elution mode aqueous-organic mobile phase Gradient elution mode factors Gradient elution mode interaction chromatography Gradient elution mode isocratic condition Gradient elution mode micro-HPLC Gradient elution mode mobile phase component Gradient elution mode peak capacity Gradient elution mode retention factor Gradient elution mode reversed-phase gradients Gradient elution mode reversed-phase separation Gradient elution mode synthetic polymer Gradient mode