PRECONCENTRATOR/CI SOURCE FOR QMS OF TRACE GASES IN AIR

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$244,389.00
Award Year:
1991
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
11226
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Extrel Corp.
240 Alphs Dr Box 11512, Pittsburgh, PA, 15238
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THIS RESEARCH WILL DESIGN AND CONSTRUCT THE PREPROTOTYPE OF AN ULTRASENSITIVE ION SOURCE THAT CAN BE EASILY INTERFACED TO QUADRUPOLE MASS SPECTROMETERS FOR REAL-TIME TRACE CONSTITUENT DETECTION. THE DESIGN WILL BE BASED ON THE COMBINATION OF PRECONCENTRATION AND RECOMBINATION-LIMITED, LOW-PRESSURE AIR CHEMICAL IONIZATION (AIR-CI) CONCEPTS. THE GAIN IN CONCENTRATION OF TRACE CONSTITUENTS GENERALLY DEPENDS UPON THE DURATIONS, PRESSURES, AND GAS-FLOW RATES OF THE SAMPLING AND PURGE PHASES. UNLIKE A CONVENTIONAL PRECONCENTRATOR THAT USES ONLY TIME PARAMETERS TO INCREASE THE CONCENTRATION OF CONSTITUENTS, THE NEW PRECONCENTRATOR WILL UTILIZE BOTH PRESSURE AND TIME PARAMETERS. THE CONCENTRATED TRACE CONSTITUENTS WILL BE IONIZED BY USING AN APPROPRIATE AIR-CI SOURCE THAT OPERATES AT A PRESSURE OF ABOUT 10 TO 30 TORR. THIS UNIQUE COMBINATION OF A PRECONCENTRATOR AND MATCHING AIR-CI SOURCE WILL RESULT IN ANULTRASENSITIVE ION SOURCE FOR MASS SPECTROMETERS.

* information listed above is at the time of submission.

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