| 摘要 |
FIELD: physics, measurements. ^ SUBSTANCE: invention can be used in gas analysers. The proposed method of determining micro concentration of metal carbonyls in air flow comprises transforming carbonyl molecules in condensation molecular nuclei, subsequent development and nuclei enlargement in supersaturated vapors of developing and enlarging detecting substances at condensation plants, as well as turbidimetric measurement of produced aerosol light dissipation. Note here that transformation of carbonyl molecules in aforesaid condensation molecular nuclei is performed by passing the analysed flow through the heated part of developing-and-condensing device tube with developing substance applied onto the tube inner walls. The nuclei development is performed in supersaturated vapour of developing substance when the flow passes through the cooled part of aforesaid tube. ^ EFFECT: simplified method, smaller weight and sizes, lower power consumption, increased selectivity of carbonyl determination in air. ^ 3 dwg |
