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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Anal Chem. 2010 Mar 1;82(5):1881–1889. doi: 10.1021/ac9026115

FIGURE 2.

FIGURE 2

Calibration curves of normalized CCS versus effective drift time used to estimate CCS values of (A) phospholipids and (B) tryptic peptides directly from tissue sections. Data from 5 different wave heights are each plotted whereby the correlation line represents a power fit to the data. Since t-wave IM-MS CCS values were calculated using the td values obtained directly from a complex sample, only td values for peaks containing a single species when analyzed by FTICR were used. Calibration curves of phospholipid standards have R2 values > 0.95 and calibration curves of BSA tryptic peptides have R2 values > 0.98.