METHOD AND APPARATUS FOR IONIZING GASES USING UV RADIATION AND ELECTRONS AND IDENTIFYING SAID GASES

摘要

Method for ionizing and identifying gases, in which the gases to be identified are ionized in a reaction space and the product ions are measured, wherein the product ions are measured by way of electric fields acting on the product ions and detection is carried out using a detector for ions. Provision is made for the ionization to take place using UV radiation and for ionization using electrons to take place at the same time or successively. Furthermore disclosed is an apparatus for ionizing and identifying gases, which apparatus comprises an ion source chamber (5) with an ion source (1) and an ion mobility spectrometer (2). In this respect, provision is made for a separating wall (6) between the ion source chamber (5) and the ion mobility spectrometer (2) to have a UV-radiation-permeable window (8) and an electron-permeable window (7), wherein UV radiation and electron radiation are generatable in the ion source chamber (5) using the ion source (1).