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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Anal Bioanal Chem. 2012 Jan 12;403(2):355–365. doi: 10.1007/s00216-011-5679-7

Fig. 4.

Fig. 4

DESI-MS spectra acquired when a solution of 20 μM chlorpromazine in methanol/water (1:1 by volume) containing 0.5% formic acid flowed through the thin-layer electrochemical cell with an applied potential of (a) 0.0 V and (b) +1.5 V; (c) CID MS/MS spectrum of the chlorpromazine radical cation (m/z 318)