Increased Resolution of Propylene Glycol Impurities with High-Efficiency GC Column Dimensions and Zebron™ ZB-WAXPLUS™
7 Apr 2016This 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-WAXPLUS 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.
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Zebron™ ZB-WAXplus GC Columns
Phenomenex Inc100% Aqueous Stability for Polar Compounds100% aqueous stable, excellent for aqueous samples; bonded and solvent rinseableExtremely inert for acidic compoundsEnhanced selectivity for low boiling solvents; high retention of alcohols and chlorinated solventsIncreased efficiency at 20 °CZB-WAXplus provides optimal selectivity for many aqueous soluble compounds such as those found in alcoholic beverages or glycol samples. The ZB-WAXplus bonding process results in exceptional stability to repeated injections of aqueous matrices like whiskey. Multiple or routine water injections will not alter the efficiency or polarity of the phase over time.Recommended UseAlcohols, Aldehydes, Aromatics, Essential Oils, Flavors & Fragrances, Free Fatty Acids, Glycols, OVIs, Pharmaceuticals, Solvents / Residual Solvents, Styrene, Xylene IsomersEnhanced Aqueous Stability