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. 2015 Oct 5;54(48):14559–14563. doi: 10.1002/anie.201506592

Figure 4.

Figure 4

Oligomerization of AMP in condensation buffer at 0 °C after 30 d. a) Reaction scheme. b) Ion-exchange HPLC chromatogram at λdet=260 nm. c) Overlay of MALDI-TOF mass spectra of HPLC fractions, showing peaks of oligoribonucleotides with 2–9 residues.