In gas chromatography, what is the role of the stationary phase?
Practice Questions
1 question
Q1
In gas chromatography, what is the role of the stationary phase?
To vaporize the sample
To separate components based on volatility
To provide a surface for interaction with analytes
To detect the components
The stationary phase in gas chromatography provides a surface for interaction with the analytes, allowing for separation based on their different affinities.
Questions & Step-by-step Solutions
1 item
Q
Q: In gas chromatography, what is the role of the stationary phase?
Solution: The stationary phase in gas chromatography provides a surface for interaction with the analytes, allowing for separation based on their different affinities.
Steps: 6
Step 1: Understand that gas chromatography is a technique used to separate different substances in a mixture.
Step 2: Identify that the stationary phase is a material that does not move during the process.
Step 3: Recognize that the stationary phase is usually a liquid or solid that coats the inside of the chromatography column.
Step 4: Learn that when the gas mixture passes through the column, the different substances (analytes) interact with the stationary phase.
Step 5: Realize that each analyte has a different level of attraction to the stationary phase, which affects how quickly they move through the column.
Step 6: Conclude that this difference in movement allows the analytes to be separated from each other as they exit the column.
