QUALITY-GC (ARTICLE)

What is the principle of gas chromatography?

• Separation of compounds based on their taste

• Separation of compounds based on their color

• Separation of compounds based on differential partitioning between a stationary phase and a gaseous mobile phase

• Separation of compounds based on their size

What is the stationary phase in gas chromatography?

• Liquid coating with specific properties

• Flame Ionization Detector

• Solid support with specific properties

• Inert carrier gas

What is the purpose of gas chromatography?

• Analyzing non-volatile compounds

• Identifying compounds based on their color

• Analyzing volatile and semi-volatile compounds

• Monitoring physical reactions

The time taken for a compound to travel from injection to detection is known as .....

• Detection Time

• Reaction Time

• Travel Time

• Retention Time

What are the advantages of gas chromatography?

• Low separation efficiency

• Limited applications

• High separation efficiency

• Qualitative analysis capabilities

What are the limitations of gas chromatography?

• Limited to non-volatile compounds

• Requires basic equipment

• Requires specialized equipment

• Does not require sample derivatization

What is the separation time for gas chromatography?

• Relatively fast, typically a few minutes to half an hour

• Instantaneous

• Several hours

• Several days

What are the components of gas chromatography?

• Liquid coating and inert carrier gas

• Solid support and flame ionization detector

• Inert carrier gas and mass spectrometer

• Liquid coating and solid support

What are the detection methods used in gas chromatography?

• Flame Ionization Detector and Thermal Conductivity Detector

• Thermal Conductivity Detector and Electron Capture Detector

• Electron Capture Detector and Mass Spectrometer

• Flame Ionization Detector and Mass Spectrometer

What is the mobile phase in gas chromatography?

• Flame Ionization Detector

• Inert carrier gas

• Solid support with specific properties

• Liquid coating with specific properties