This invention relates to a method and an apparatus of mass spectrometry, and in particular to {HEAD ~ a method} and an apparatus for {TAIL ~ storage} and injection of ions into an electrostatic ion trap 
for
This invention relates to a method and an apparatus of mass spectrometry , and in particular to { HEAD ~ a method } and an apparatus for { TAIL ~ storage } and injection of ions into an electrostatic ion trap
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH