10 Questions
What is the typical flow rate of carrier gas in capillary columns?
1 ml/min
What is the typical length range of capillary columns?
15-100 meters
What is the main difference between packed and capillary columns?
Sample size
What is the maximum temperature for glass packed columns?
280°C
What is the main factor affecting retention in GC?
All of the above
What is the effect of increasing column temperature on GC resolution?
Decreases resolution
What is the effect of increasing film thickness on GC resolution?
Increases resolution
What is the effect of increasing internal diameter on GC resolution?
Decreases resolution
What is the typical material used for capillary columns?
All of the above
What is the stationary phase in capillary columns?
A liquid film coated on the inner wall
This quiz covers the basics of gas chromatography, including sample injection, vaporization, and fractionation. Learn about the partition and adsorption processes between the mobile and stationary phases.
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