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
Title | Year | Author | Number |
---|---|---|---|
APPARATUS FOR MEASURING TRACE IMPURITIES IN GAS STREAM | 2011 |
|
RU2475721C2 |
METHOD OF MEASURING TRACE ELEMENTS IN AIR STREAM | 2010 |
|
RU2444720C1 |
METHOD FOR DETERMINING SPECTRUM OF SIZES OF SUSPENDED NANOPARTICLES | 2014 |
|
RU2558281C1 |
DEVICE TO DETERMINE SPECTRUM OF SIZE OF SUSPENDED NANOPARTICLES | 2014 |
|
RU2555353C1 |
METHOD AND DEVICE FOR COARSENING CONDENSATION NUCLEI | 1994 |
|
RU2061219C1 |
METHOD FOR DETERMINING TOXIC IMPURITIES IN GAS | 1999 |
|
RU2153661C1 |
METHOD OF MEASURING CONTENT OF SMALL IMPURITIES IN GAS | 2004 |
|
RU2253857C1 |
METHOD OF MEASURING MICROIMPURITIES IN GAS FLOW | 0 |
|
SU802842A1 |
DEVICE FOR PRODUCING OF MEASURED SUBSTANCE VAPOR SUPERSATURATION IN GAS FLOW | 0 |
|
SU1741105A1 |
METHOD OF MEASURING MICROIMPURITIES IN A GAS FLOW | 0 |
|
SU742768A1 |
Authors
Dates
2009-05-20—Published
2007-10-31—Filed