Apparatus and methods for the analysis of trace constituents in

Details Apparatus and methods for the analysis of trace constituents in Apparatus and methods for the analysis of trace constituents in

1997-07-18

1999-02-09

Soderquist, Arlen

Chemistry: analytical and immunological testing

Nuclear magnetic resonance, electron spin resonance or other...

436 38, 436 39, 436106, 436116, 436119, 436120, 436124, 436127, 436179, 436181, 250281, 250282, 250286, 250288, 7386371, 7386421, 7386433, 7386481, G01N 2700, B01D 5944, H01J 4900

Patent

active

058693440

ABSTRACT:
The invention comprises a novel sample introduction system which incorporates a venturi pump to convey a sample gas to an analytical instrument at atmospheric pressure. An APCI, ICP or MIP mass spectrometer is preferred as the analytical instrument. Using such an inlet with an APCI mass spectrometer, the real-time analysis of trace materials present in breath is facilitated, enabling, for example, the release of compounds responsible for aroma and taste to be analysed during eating and drinking. The invention can also be used for headspace analysis and for monitoring the release of fragrances from skin or clothing.

REFERENCES:
patent: 3759249 (1973-09-01), Fletcher et al.
patent: 4735777 (1988-04-01), Mitsui et al.
patent: 5042501 (1991-08-01), Kenny et al.
patent: 5043576 (1991-08-01), Broadhurst et al.
patent: 5081871 (1992-01-01), Glaser
Teranishi, et al.; Standardized Human Olfactory Thresholds, Ed. Devos, Publ. (IRL Press, Oxford 1990), pp. 1-3, 90-93, & 102-103.
Schoellor, Klein: Biomedd. Mass Spectrom., 1979 vol. 6 (8) pp. 350-355.
Soeting, Heidema: Chem. Senses 1988 vol. 13 (4) pp. 607-617.
Haring et al.; Flavour Science and Technology, pub. Wiley, Chichester, 1990.
French, Thomson et al.; Mass Spectrometry in Environmental Sciences, ed. Karasek, Hutzinger and Safe, pub. Plenium Press, 1985 pp. 101-120.
Benoit, Davidson, Lovett et al: Anal. Chem. 1983 vol. 65 pp. 805-807.
Lovett, Reid, Buckley: Biomed. Mass Spectrom. 1979 vol. 6 (3) pp. 91-97.
Wilson, Ottley: Biomed. Mass Spectrom. 1981 vol. 8 (12) pp. 606-610.
Suehiro, Schoellor, Klein: Bun. Kagaku 1979 vol. 28 pp. 361-367.
Goodwin, Holme, Leck: Proc. 7.sup.th Int. Vac. Congr. pp. 177-180.
Furner, Alarcon, Irving: J. Am. Soc. Mass Spectrom. 1992 vol. 3 pp. 742-749.
Benoit, Davison, et al.; Int. Arch. Occup. Environ. Health, 1985 vol. 55 pp. 113-120.
Charles Murray Design News, 19 Jul. 1983 pp. 81-82.
Thrall, Kenny: Inhalation Technology 1996 vol. 8 (3) pp. 251-266.

Affiliated with

Also associated with

Rating

Apparatus and methods for the analysis of trace constituents in does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and methods for the analysis of trace constituents in , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and methods for the analysis of trace constituents in will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947967