Ethylacetoacetate

[anandaraohs]

Hi

why peak shape for Ethyl aceto acetate in almost all GC columns is fronting???????????

[Consumer Products Guy]

You really provided very little information.

Try more dilute injection and/or smaller injection size.

[chromatographer1]

This is caused by a lack of solubility of the analyte in the liquid phase and a greater affiniity for the analyte to itself.

The 50% phenyl methyl silicone phase seems to work best.

Be glad it elutes at all.

best wishes,

Rod