METHOD OF ANALYSIS OF SOLID BODIES WITH USE OF ION SOURCE OF GLOW DISCHARGE WITH HOLLOW CATHODE Russian patent published in 2001 - IPC

FIELD: analytical chemistry, element analysis of compact solid bodies by method of emission spectral analysis and by mass spectral method. SUBSTANCE: technical result of invention lies in growth of efficiency of ion source during analysis of solid bodies due to rise of ionization degree and stability of analytical signal and in expansion of types of substances to be analyzed, compact substances, in particular. Method of analysis of solid bodies with use of ion source of glow discharge with hollow cathode includes positioning of analyzed substance in hollow cathode. Substance subject to analysis is taken in the form of bar anchored on axis of hollow cathode. Analysis is conducted under pressure of gas in hollow cathode and discharge voltage between cathode and anode so chosen that formed plasma penetrates space of cathode to depth of 5-10 mm. EFFECT: raised efficiency of ion source. 1 dwg