The resulting odd electron sample cation or {HEAD ~ anion} can then be analyzed by {TAIL ~ an appropriate technique}, such as, for example, a mass spectrometer 
analyzed by
The resulting odd electron sample cation or { HEAD ~ anion } can then be analyzed by { TAIL ~ an appropriate technique } , such as , for example , a mass spectrometer
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH