Apparatus for rapid measurement of aerosol bulk chemical composition

Lee, Yin-Nan E; Weber, Rodney J

Apparatus for rapid measurement of aerosol bulk chemical composition

Patent · 01 January 2003

OSTI ID:874989

Lee, Yin-Nan E ^[1]; Weber, Rodney J ^[2]

East Setauket, NY
Atlanta, GA

An apparatus and method for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution are provided. The apparatus includes a modified particle size magnifier for producing activated aerosol particles and a collection device which collects the activated aerosol particles into a liquid stream for quantitative analysis by analytical methods. The method provided for on-line measurement of chemical composition of aerosol particles includes exposing aerosol carrying sample air to hot saturated steam thereby forming activated aerosol particles; collecting the activated aerosol particles by a collection device for delivery as a jet stream onto an impaction surface; flushing off the activated aerosol particles from the impaction surface into a liquid stream for delivery of the collected liquid stream to an analytical instrument for quantitative measurement.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY

DOE Contract Number:: AC02-98CH10886

Assignee:: Brookhaven Science Associates (Upton, NY)

Patent Number(s):: US 6506345

OSTI ID:: 874989

Country of Publication:: United States

Language:: English

References (25)

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/422/73/436/
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chemical
chemical composition
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collecting
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Apparatus for rapid measurement of aerosol bulk chemical composition

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