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. Author manuscript; available in PMC: 2006 Jan 20.
Published in final edited form as: J Am Soc Mass Spectrom. 1998 Nov;9(11):1117–1124. doi: 10.1016/S1044-0305(98)00098-1

Figure 2.

Figure 2

BIRD spectra of d(AATTAAT)2− (a) at 171 °C and a reaction delay of 45 s, (b) under the same conditions but with a single rf excitation to continuously remove (M–2H–AH)2−, (c) continuous ejection of w62-, and (d) continuous removal of w2-; asterisk denotes the 2nd harmonic of (M–2H)2−.