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Card 6
Front
Chemical analysis can be used to identify additives in foods. Artificial colours can be detected and identified by paper chromatography.
Back
Card 7
Front
The time taken for a substance to travel through the column can be used to help identify the substance
Back
Card 8
Front
The mass spectrometer can also give the relative molecular mass of each of the substances separated in the column.
Back
Card 9
Front
Different substances, carried by a gas, travel through a column packed with a solid material at different speeds, so that they become separated
Back
Card 10
Front
The position of the peaks on the output indicates the retention time
Back
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