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. Author manuscript; available in PMC: 2012 Sep 15.
Published in final edited form as: Anal Biochem. 2011 May 26;416(2):191–195. doi: 10.1016/j.ab.2011.05.025

Fig. 4.

Fig. 4

Electropherograms obtained from studying DOPA metabolism: (A) racemic DOPA standard solution (50.0 μM each enantiomer), (B) 500 μM racemic DOPA incubated with the culture medium for 2 hrs, and (C) 500 μM racemic DOPA incubated with PC-12 cells (2 × 106 cells/mL) for 2 hrs. Chiral CE-MS/MS conditions were as in Figure 2.