Gas Chromatography Quiz

What is the cause of peak width in chromatography?

• Eddy diffusion

• Column packing

• Mobile phase retention

• Stationary phase transfer

What is the advantage of using programmed temperature in Gas Chromatography?

• Improves resolution

• Decreases sensitivity

• Reduces speed

• Increases retention time

What is the main application of Gas Chromatography in food products?

• Flavor preservation

• Texture modification

• Color enhancement

• Residue analysis

What is the main disadvantage of Gas Chromatography?

• Low resolution

• Slow analysis

• Limited to volatile samples

• High cost

What is the purpose of Isothermal conditions in Gas Chromatography?

• Enhance peak width

• Increase sensitivity

• Maintain constant temperature

• Reduce resolution

What is the role of GC-FID analysis in Gas Chromatography?

• Assess aroma concentration

• Evaluate adulteration of oils

• Determine texture properties

• Measure color intensity

What is the main advantage of Gas Chromatography in quality control?

• Requires extensive preparation

• Limited to non-volatile samples

• Low sample requirement

• Highly accurate quantification

What is the typical chromatogram representation in Gas Chromatography?

• Pressure versus flow rate

• Temperature versus retention time

• Concentration versus elution time

• Volume versus injection time

What is the main interaction in Gas Chromatography with the stationary phase?

• Column to injector

• Flow of carrier gas

• Injector to detector

• Detector to column

What is the primary method of separation in Gas Chromatography?

• Chemical reaction

• Physical adsorption

• Chromatographic separation process

• Ion exchange