СПОСОБ ИОНИЗАЦИИ В ГАЗОВОМ МАСС-СПЕКТРАЛЬНОМ АНАЛИЗЕ И УСТРОЙСТВО ДЛЯ ЕГО РЕАЛИЗАЦИИ

摘要

FIELD: measurement engineering. ^ SUBSTANCE: method is based upon introduction of preliminary prepared gas sample, ionization of components of sample and mass-spectral registration of ions. Ionization is completed by means of combination of glow discharge and electron impact when using ionizer which has to be assemblage made of high-melting capillary and thin-walled metal hollow cathode. Sample together with flow of microcavity discharge gas-suppressor is introduced into hollow cathode through capillary. Device is provided with electron gun mounted directly behind skimmer on the axis of supersonic gas jet. Hollow cathode is connected with capillary intended for introducing sample. Port of gas-discharge camera intends for introduction of ballast gas. There is ionizer inside the gas-discharge camera. ^ EFFECT: widened analytical abilities of gas mass-spectrometry. ^ 7 cl, 3 dwg