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M6 Chromatography Q&A
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Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (5)
#1
Front (Question)
Name the process by which TLC separates compounds in a mixture
Back (Answer)
• Adsorption (spelt correctly!)
#2
Front (Question)
How can TLC be used to analyse the compounds in a mixture?
Back (Answer)
• Rf value calculated for each compound Rf = distance moved by the solute / distance moved by solvent • Compare the known Rf values to identify the compounds
#3
Front (Question)
What problems occur in using TLC to separate compounds?
Back (Answer)
• Similar compounds have similar Rf values
#4
Front (Question)
Name the process by which GC separates compounds (the stationary phase is liquid)
Back (Answer)
• (Relative) solubility
#5
Front (Question)
Define the term ‘retention time’
Back (Answer)
• The time taken (from the injection of the sample) for each component to leave the column