Increased Resolution of Propylene Glycol Impurities with High-Efficiency GC Column Dimensions and Zebron™ ZB-WAXPLUS™

This investigation by Phenomenex looks at the effect of varying column dimensions when performing gas chromatography, the study used propylene glycol impurity testing with a Zebron ZB-WAX_PLUS GC column as an example. The dimensions of the columns in included length, internal diameter and film thickness, varying these dimensions can affect the efficiency of the process leading to inaccurate results.