Working range of packed columns and capillary columns in gas chromatography

✍ Scribed by Kaiser, R. E. ;Bertsch, W.

• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: English
• Weight: 517 KB
• Volume: 1
• Category: Article
• ISSN: 0935-6304
• DOI: 10.1002/jhrc.1240010617

✦ Synopsis

Please add a reference to Chromcard Information (1) HRC &CC 1 (1978) 119 F. Rinderknecht, "A program for calculation of tm on the calculator HP-9820A by iterative refinement of a regression", private communication, 1975.

What is it? Definition

The working range of a GC column gives quantitative information about:

The relationship between analysis time (in isothermal GC), temperature and the retention index or molecular weight range for a particular packed or capillary column in which its practical application is suitable.

Graphically, the working range is to be viewed as a users' guide which quantitatively describes a packed or capillary column.

Additional characteristic figures relating to selectivity, polarity, activity, and efficiency complement the users' guide or the set of working range graphs.

How is it done?

The working range can only be determined experimentally. A procedure is discussed here in detail. The time required to establish the working range is minimal compared to the life of the column.