Air quality sampler using solid phase coated material
View Patent ↗A method and apparatus for monitoring air quality is provided.
1. A method for monitoring air quality which comprises:
(a) contacting a collection device comprising a carbon-based adsorbent resin which additionally comprises polydimethylsiloxane and a platinum catalyst with air;
(b) collecting a sample from said air over a period of time from about 24 hours to about one week using said collection device;
(c) removing adsorbed material from said collection device; and
(d) analyzing said removed material,
wherein said sample is a biological sample.
2. The method of claim 1 wherein said carbon-based adsorbent resin is a molecular sieve resin.
3. The method of claim 1 wherein said collection device is selected from the group consisting of an active collection device and a passive collection device.
4. The method of claim 3 wherein said collection device is an active collection device.
5. The method of claim 1 wherein said adsorbed material is removed from said collection device by chemical means.
6. The method of claim 5 wherein said chemical means is solvent extraction.
7. The method of claim 6 wherein said solvent is selected from the group consisting of acetone, methanol, ethanol, methylene chloride, CS 2 , and water.
8. The method of claim 7 wherein said solvent is methylene chloride.
9. The method of claim 1 wherein said collected sample is bacterial.
10. The method of claim 9 wherein said bacterial sample is anthrax.
11. The method of claim 1 wherein said period of time is from about one hour to about two weeks.
12. The method of claim 11 wherein said period of time is about one hour.
13. The method of claim 11 wherein said period of time is about 12 hours.
14. The method of claim 11 wherein said period of time is about 24 hours.
15. The method of claim 11 wherein said period of time is about one week.
16. The method of claim 3 wherein said collection device is a passive collection device.
17. The method of claim 1 wherein said adsorbed material is removed from said collection device by physical means.
18. The method of claim 17 wherein said physical means is selected from the group consisting of sonication, a change in temperature, and a change in pressure.
19. The method of claim 7 wherein said solvent is acetone.
20. The method of claim 7 wherein said solvent is methanol.
21. The method of claim 7 wherein said solvent is ethanol.
22. The method of claim 7 wherein said solvent is CS 2 .
23. The method of claim 7 wherein said solvent is water.
24. An apparatus for monitoring air quality which comprises a collection device comprising an adsorbent material, wherein said adsorbent material is a carbon molecular sieve which additionally comprises polydimethylsiloxane and a platinum catalyst, and wherein said adsorbent material adsorbs at least one biological sample.
25. The apparatus of claim 24 wherein said carbon molecular sieve material has a high surface area.
26. The apparatus of claim 24 wherein said surface area is from about 10 cm 2 to about 20 cm 2 .
27. The apparatus of claim 24 wherein said collection device is selected from the group consisting of an active collection device and a passive collection device.
28. The apparatus of claim 27 wherein said collection device is an active collection device.
29. The apparatus of claim 27 wherein said collection device is a passive collection device.