ChromatographiaJuly 1998, Volume 48, Issue 1–2, pp 169–171 | Cite asCalendar of eventsArticle 12 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1998