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. Author manuscript; available in PMC: 2015 Apr 25.
Published in final edited form as: J Chromatogr A. 2014 Mar 3;1339:73–79. doi: 10.1016/j.chroma.2014.02.074

Figure 1. Reaction scheme.

Figure 1

DNA containing a ribose nucleotide at the 3′ end is modified by reaction with sodium meta-periodate (NaIO4) to produce the dialdehyde. The reaction can be quenched by the addition of sodium meta-bisulfite (Na2S2O5). The aldehyde then reacts with a hydrazide-agarose bead to produce coupled DNA.