High-throughput liquid-absorption air-sampling apparatus and methods
Abstract
A portable high-throughput liquid-absorption air sampler [PHTLAAS] has an asymmetric air inlet through which air is drawn upward by a small and light-weight centrifugal fan driven by a direct current motor that can be powered by a battery. The air inlet is so configured as to impart both rotational and downward components of motion to the sampled air near said inlet. The PHTLAAS comprises a glass tube of relatively small size through which air passes at a high rate in a swirling, highly turbulent motion, which facilitates rapid transfer of vapors and particulates to a liquid film covering the inner walls of the tube. The pressure drop through the glass tube is <10 cm of water, usually <5 cm of water. The sampler's collection efficiency is usually >20% for vapors or airborne particulates in the 2-3.mu. range and >50% for particles larger than 4.mu.. In conjunction with various analyzers, the PHTLAAS can serve to monitor a variety of hazardous or illicit airborne substances, such as lead-containing particulates, tritiated water vapor, biological aerosols, or traces of concealed drugs or explosives.
- Inventors:
-
- 95706 William Dr., Hinsdale, IL 60521
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 873086
- Patent Number(s):
- 6087183
- Assignee:
- Zaromb, Solomon (95706 William Dr., Hinsdale, IL 60521)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- high-throughput; liquid-absorption; air-sampling; apparatus; methods; portable; air; sampler; phtlaas; asymmetric; inlet; drawn; upward; light-weight; centrifugal; fan; driven; direct; current; motor; powered; battery; configured; impart; rotational; downward; components; motion; sampled; near; comprises; glass; tube; relatively; size; passes; rate; swirling; highly; turbulent; facilitates; rapid; transfer; vapors; particulates; liquid; film; covering; inner; walls; pressure; drop; 10; cm; water; collection; efficiency; 20; airborne; 2-3; range; 50; particles; larger; conjunction; various; analyzers; serve; monitor; variety; hazardous; illicit; substances; lead-containing; tritiated; vapor; biological; aerosols; traces; concealed; drugs; explosives; liquid film; sampled air; air sampler; inner wall; pressure drop; direct current; water vapor; air inlet; air sample; glass tube; sampling apparatus; collection efficiency; tritiated water; inner walls; airborne particulate; air passes; current motor; airborne particulates; containing particulate; drawn upward; high-throughput liquid-absorption; fan drive; throughput liquid; containing particulates; /436/55/422/
Citation Formats
Zaromb, Solomon. High-throughput liquid-absorption air-sampling apparatus and methods. United States: N. p., 2000.
Web.
Zaromb, Solomon. High-throughput liquid-absorption air-sampling apparatus and methods. United States.
Zaromb, Solomon. Sat .
"High-throughput liquid-absorption air-sampling apparatus and methods". United States. https://www.osti.gov/servlets/purl/873086.
@article{osti_873086,
title = {High-throughput liquid-absorption air-sampling apparatus and methods},
author = {Zaromb, Solomon},
abstractNote = {A portable high-throughput liquid-absorption air sampler [PHTLAAS] has an asymmetric air inlet through which air is drawn upward by a small and light-weight centrifugal fan driven by a direct current motor that can be powered by a battery. The air inlet is so configured as to impart both rotational and downward components of motion to the sampled air near said inlet. The PHTLAAS comprises a glass tube of relatively small size through which air passes at a high rate in a swirling, highly turbulent motion, which facilitates rapid transfer of vapors and particulates to a liquid film covering the inner walls of the tube. The pressure drop through the glass tube is <10 cm of water, usually <5 cm of water. The sampler's collection efficiency is usually >20% for vapors or airborne particulates in the 2-3.mu. range and >50% for particles larger than 4.mu.. In conjunction with various analyzers, the PHTLAAS can serve to monitor a variety of hazardous or illicit airborne substances, such as lead-containing particulates, tritiated water vapor, biological aerosols, or traces of concealed drugs or explosives.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}