In the corona discharge single electrode electrochemical/electrospray ionization technique electrons are removed from the metal tip of the device through {HEAD ~ gases} present in the electrospray ion source resulting in electrochemical ionization of {TAIL ~ the sample} of interest 
In the corona discharge single electrode electrochemical / electrospray ionization technique electrons are removed from the metal tip of the device through { HEAD ~ gases } present in the electrospray ion source resulting in electrochemical ionization of { TAIL ~ the sample } of interest
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH