A mixture containing colourless amino acids is separated by chromatography. The solvent employed is propanol, and the chromatogram is then sprayed with a locating agent. Which row states the function of the propanol and the locating agent?
- APropanol: to make the individual amino acids visible; Locating agent: to prevent the amino acids moving any further
- BPropanol: to move the amino acids up the chromatography paper; Locating agent: to make the individual amino acids visible
- CPropanol: to move the amino acids up the chromatography paper; Locating agent: to prevent the amino acids moving any further
- DPropanol: to prevent the amino acids moving too far up the paper; Locating agent: to make the individual amino acids visible