OPLC Analysis of Closely Related Furocoumarins

Preparative Pressure Liquid Chromatography

“…A higher packing density of at least 20% was found for the dry packing techniques (Zogg et al 1989b). The most efficient methods were two dry packing procedures, using vacuum and nitrogen overpressure.…”

“…One of the practical results to come from the investigation of Zogg et al ( 1989c) was that resolution was increased for a long column of small internal diameter when compared with a shorter column of larger internal diameter (with the same amount of stationary phase). Choice of solvent systems can be very efficiently performed by analytical HPLC.…”