GC: Temperature Influence
- Page ID
- 283950
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Exercise – Gas Chromatography
- Temperature is the most easily controlled factor influencing separation in GC. Consider the isothermal (45 °C) gas chromatogram below.
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What’s the problem with this separation?
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Estimate the retention factor (k) for peak #5.
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How would you change the isothermal temperature conditions to improve the retention factor for peak #5? Draw the resulting chromatogram with peaks labeled.
- What would be the downside to the change you proposed in part (c)? [Hint: consider what happens to peaks #1-4]
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Contributors and Attributions
- David Griffith, Willamette University (dgriffit@willamette.edu)
- Sourced from the Analytical Sciences Digital Library