Chromatographia

, Volume 2, Issue 5, pp 215–223 | Cite as

Determination of hold-up time

  • R. Kaiser
Article

Summary

  • - The simplest method of determining the hold-up time is to measure the gross retention time of the air peak. This value, howover, if often much larger than the real hold-up time.

  • - The gross retention time of helium corresponds exactly to the hold-up time (independent of carrier gas used) due to the laws of vacanto chromatography. If the tms (helium) can be measured, this procedure should be used to determine tms(He)=tm.

Keywords

Chromatography Analytical Chemistry Organic Chemistry Helium Retention Time 

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Copyright information

© Friedr. Vieweg & Sohn GmbH 1969

Authors and Affiliations

  • R. Kaiser
    • 1
  1. 1.AmmoniaklaboratoriumBadische Anilin-& Sodafabrik AGLudwigshafen

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