Skip to main content
. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Anal Chem. 2009 Nov 1;81(21):8669–8676. doi: 10.1021/ac9014935

Figure 2.

Figure 2

Proton transfer to multiply-charged pdA40–60 anions. (Top) Negative ion electrospray mass spectrum of an oligonuncleotide mixture. (Bottom) Post-ion/ion reaction mass spectrum after protonated benzoquinoline was allowed to react with the mixture of ions reflected in the top spectrum.