Crowell & Moring LLP
Electron capture detector and nonradiative electron capture detector
It is intended to realize measuring of trace organic components and to render qualitative procedure efficient through imparting of selectivity. Penning gas and dopant gas are ionized in a space isolated from discharge part with the use of metastable helium obtained by direct-current glow discharge, and with the use of thus obtained plasma, the efficiency of ionization of components to be measured is enhanced, so that intensified ion current can be obtained. Further, through selection of dopant gas and Penning gas, selectivity can be imparted. Thus, not only can measuring of trace organic components be performed but also selectivity can be imparted.
Hitachi High-Tech Science Systems Corporation
G G
G01N G01N
inventional inventional
Norio Masahiro Shinji
Kawamura Takeuchi Kurita