What is the stationary phase in gas chromatography?
Understand the Problem
The question is asking for information about the stationary phase in gas chromatography, which is a critical component of the technique that affects how substances are separated during the analysis.
Answer
Solid adsorbents or liquid (often polymeric) stationary phases.
The stationary phase in gas chromatography can be either a solid or liquid. The most common stationary phases are polymeric liquids that coat the inside wall of the column.
Answer for screen readers
The stationary phase in gas chromatography can be either a solid or liquid. The most common stationary phases are polymeric liquids that coat the inside wall of the column.
More Information
In gas chromatography, the stationary phase is key to separating compounds as they travel through the column. It interacts with the analytes passing through, affecting their rate of movement and thus their separation.
Tips
A common mistake is to confuse the stationary phase with the mobile phase. Remember, the stationary phase stays fixed while the mobile phase carries the analytes through the column.
Sources
- Gas Chromatography - Chemistry LibreTexts - chem.libretexts.org
- Gas chromatography - Wikipedia - en.wikipedia.org
- Gas Chromatography Theory - chem.ucla.edu
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