Gas chromatography is an analytical technique that is used to separate and analyze samples that can be vaporized without decomposing. The chromatography column contains a substance that helps
separate the sample being analyzed. The sample is vaporized and carried through the column by an inert gas. As the mixture moves through the column, the compounds are separated based on how much
they interact with the substance in the column. The molecules of each compound are detected as they exit the column, and a peak for each compound is produced on a chromatogram. The area under each
peak on the chromatogram is proportional to the concentration of the compound in the sample. A chromatogram produced by separating a mixture of compounds is shown.
B
Based on the information given, which of the following statements about the chromatogram is most likely true?
с
D
The three peaks each represent a different element.
Time to Go Through Column
The three peaks each represent a different substance used to separate the compounds in the sample.
The compound represented by peak A interacted the most with the substance in the column.
The sample contained more of the compound represented by peak B than of that represented by peak C.
