| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to electronic engineering and instrument-making, particularly to devices for detecting and analysing organic compounds in air at atmospheric pressure using the phenomenon of selective surface ionisation of organic molecules on the heated surface of an ion thermoemitter. The organic ion thermoemitter is made from a bronze oxide monocrystal having chemical formula MeVO, where Me is lithium, sodium or potassium, V is vanadium, O is oxygen, wherein the working surface of the thermoemitter matches with the crystal plane [020] of the bronze oxide monocrystal. The working surface of the thermoemitter has film of a refractory metal. The refractory metal is selected from a group comprising molybdenum, tungsten, rhenium, ruthenium and rhodium.EFFECT: high efficiency of ionising organic nitrogen compounds on the surface of a thermoemitter and longevity of a thermoemitter based on bronze oxide of an alkali metal during operation of the thermoemitter in air at atmospheric pressure.4 cl, 1 tbl, 2 dwg |
