22.214.171.124. Clean up peptides
- From the final step in paragraph 126.96.36.199. ‘Label peptides with stable isotopes’, combine the two (for duplex labelling) or three (for triplex labelling) into a single tube.
- Repeat all steps from paragraph 188.8.131.52. ‘Clean up peptides’ above, eluting the peptides in step 5 into a 96-well microwell plate.