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Figure 1–16: The GC interface
Spring-loaded tip (inlet)
Heated transfer line
Ferrule interface
Figure 1–17: The GC interface apertures
CI gas aperture
Column aperture
Reference gas aperture
The GC interface can maintain a temperature of 350 °C. A spring-loaded tip maintains contact
between the interface and the outer source block for GC operation, while allowing thermal
expansion of the inner, reentrant tube. During CI operation, the spring-loaded tip also maintains
the gas seal.
Important:
Some GC columns have a low maximum operating temperature, for example 250
°C. To avoid exceeding the maximum operating temperature and damaging the column, check
April 27, 2020, 715005564 Ver. 01 (previously released as Rev. A)
Page 29
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