Method of discriminating breath contaminants and apparatus there

Details Method of discriminating breath contaminants and apparatus there Method of discriminating breath contaminants and apparatus there

1990-05-11

1991-09-17

Raevis, Robert

Measuring and testing

Gas analysis

Gas chromatography

73 232, 73 2323, 422 84, G01N 1902

Patent

active

050483218

ABSTRACT:
A method of discriminating alcohols different from ethanol in breath samples includes sampling voltages from a fuel cell at a rapid rate to establish a curve rising, upon introduction of a sample containing a known amount of ethanol without interferants, from an initial base line to a peak; determining a peak voltage; establishing an end point; determining the area under the curve from the introduction of the sample to the end point, and determing at least two other areas under the curve between the peak and the end point, a peak area, between the peak and a point on the curve relatively near the peak, and a trail area, between the end point and a point nearer the end point than the peak area; introducing to the fuel cell a breath sample that may contain an interferant in the form of an alcohol different from ethanol, and determining the peak voltage, end point, total area, peak area and trail area using the same criteria as were used in determining those pieces of information in connection with the sample containing only ethanol, and comparing the pieces of information electronically.

REFERENCES:
patent: 4090078 (1978-05-01), Heim
patent: 4487055 (1984-12-01), Wolf
patent: 4770026 (1988-08-01), Wolf
patent: 4809810 (1989-03-01), Elfman et al.
"Intoxicometer 3000-Supervisor Manual", Copyright 1980, Caldetect, Inc., pp. 18-21.

Affiliated with

Also associated with

Rating

Method of discriminating breath contaminants and apparatus there does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of discriminating breath contaminants and apparatus there, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of discriminating breath contaminants and apparatus there will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1907926