Stationary friction factor

Fallah el al. (FI), 1934 Flow of water films inside tubes, with second phase of air, white oil, stationary and countercurrent kerosine. Film thicknesses of this and previous work correlated by film friction factor plot. [Pg.212]

The smooth and efficient method transfer between the two platforms will remain important within the transition period between UHPLC and HPLC. The column dimension, particle size, stationary phase chemistry, mobile phase flow rate and gradient profile, dwell volume, injection volume, and data acquisition are key factors to be carefully evaluated to ensure improved or maintained performance of transferred methods. Other factors including regulatory requirements should also be considered for a successful method transfer to quality control labs. The extra-column volume effects such as increased retention factors and decreased efficiency and high pressure effects (e.g., frictional heating and changes in retention factors) should be considered when various methods are compared and transferred. [Pg.93]