Skip to main content
. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2010 Sep 24;21(12):2051–2061. doi: 10.1016/j.jasms.2010.08.018

Figure 1.

Figure 1

Experimental setup shown in a) side view: In CD-ECI, the plasma ion path was directed away from the analyte ion path to the ground plate behind the orifice. CD removed an electron from Fe at the sharp edge of the SS capillary resulting in radical Fe+•. Analytes (M) with ionization potential lower than Fe/Fe+• were ionized by electrochemical oxidation and fragmented. During this process, Fe0 was regenerated. The surface interaction is critical for the formation of the radical ions and for their subsequent fragmentation; b) top view: right after the generation of the analyte and plasma, both paths are separated.