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. Author manuscript; available in PMC: 2008 Jun 17.
Published in final edited form as: Biomacromolecules. 2007 May 19;8(6):1807–1811. doi: 10.1021/bm0701088

Figure 2.

Figure 2

MALDI-TOF mass spectra of the G5 PAMAM (a) and PEG–PAMAM (b), showing their average MWs to be 26 575 and 55 249 Da. The peak at ∼13 290 (a) and the shoulder at ∼27 600 Da/charge (b) are likely from the double-charged molecular ions.