What is gas chromatography?

Q: What is gas chromatography?


A: Gas chromatography is a type of chromatography where the sample to be tested is turned into a gas and then carried through a column by a nonreactive 'carrier' gas such as helium or nitrogen.

Q: How are individual components separated during gas chromatography?


A: Individual components are separated during gas chromatography by passing through the column housed inside an oven where the temperature is controlled, allowing the components to exit the column at different times.

Q: What is the purpose of using a nonreactive gas as a carrier gas in gas chromatography?


A: The purpose of using a nonreactive gas such as helium or nitrogen as a carrier gas in gas chromatography is because it does not react with the sample components, allowing for accurate results.

Q: Why is gas chromatography useful in chemical analysis?


A: Gas chromatography is useful in chemical analysis because it allows for the identification and quantification of individual components in a sample by separating them into individual parts.

Q: Can gas chromatography be used to test solid or liquid samples?


A: Gas chromatography cannot be used to directly test solid or liquid samples, as they must first be turned into a gas form.

Q: What is the purpose of the oven in gas chromatography?


A: The purpose of the oven in gas chromatography is to control the temperature of the column in order to allow for components to exit at different times and ensure accurate separation.

Q: What is meant by the 'individual components' of a sample in gas chromatography?


A: The 'individual components' of a sample in gas chromatography refer to the separated parts of the sample that have been broken down and identified through the column.

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