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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Anal Chem. 2011 Jun 13;83(13):5078–5085. doi: 10.1021/ac200985s

Fig. 5.

Fig. 5

Normalized spectra for the 2+, 3+, and 4+ ions of variants 1 and 2 from solvent A (top panels) and B (bottom panels), using DV = 5.4 kV and 50% He. The peak widths (V/cm) are given for the major well-shaped peaks.