Peak fronting

What you expect

What you got

Disease Medicine
Column overload Go here
Wrong pH Correct
Sample solvent incompatible with mobile phase Go here
Void volume at inlet May need repacking
Wrong sample solvent Dissolve sample in mobile phase
Back enter the troubleshooter parlor
Go Back to the Home Page of The Chair of Fundamental Organic Chemistry

Disease	Medicine
Column overload	Go here
Wrong pH	Correct
Sample solvent incompatible with mobile phase	Go here
Void volume at inlet	May need repacking
Wrong sample solvent	Dissolve sample in mobile phase

Send comments to:
Prof. Dr. H.J. Chaves das Neves
Department of Chemistry
Faculdade de Ciências e Tecnologia
Universidade Nova de Lisboa
2825 Monte da Caparica
Portugal

hcn@dq.fct.unl.pt