Portable sampler for volatile aerosols

Details Portable sampler for volatile aerosols Portable sampler for volatile aerosols

1995-12-08

1998-07-21

Noland, Thomas P.

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

7386333, G01N 124

Patent

active

057837562

ABSTRACT:
A portable air sampler to measure the concentration of a chemical compound in the air, especially in a workplace, measures the quantity of the chemical in its gas phase and in its particle phase. The sampler is connected to a pump which draws ambient air through an inlet tube and out a nozzle. A housing holds a filter aligned with the nozzle. The air is immediately separated into two parts, one portion continues straight through the filter, the second turns 180.degree.. The particles, due to their mass and resulting inertia, will travel in the forward direction to be collected in the filter. The portion of air that flows through the filter continues through a sorbent tube where the vapor (gas phase) from this portion is collected. This sorbent tube also collects the quantity of the chemical that evaporates from the particles collected on the filter. The remainder of the air and its gas (vapor) moves upwardly and sideways to exit through an orifice and into a second sorbent tube which collects the vapor from that portion. The original phase distribution of the chemical in the air can be determined from the amounts collected on the two sorbent tubes and the known amount of air that flows through each pathway.

REFERENCES:
patent: 4197098 (1980-04-01), Stiehl et al.
patent: 4375667 (1983-03-01), Buchan
patent: 4432248 (1984-02-01), Lalin
patent: 4569235 (1986-02-01), Conkle et al.
patent: 4666856 (1987-05-01), Irgum et al.
patent: 4786472 (1988-11-01), McConnell et al.
patent: 4796475 (1989-01-01), Morpel
patent: 4980294 (1990-12-01), Elias et al.
patent: 5047073 (1991-09-01), Stetter et al.
patent: 5476110 (1995-12-01), Baig et al.

Affiliated with

Also associated with

Rating

Portable sampler for volatile aerosols does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable sampler for volatile aerosols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable sampler for volatile aerosols will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1648560