The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1977
Filed:
Jan. 06, 1977
C Shepherd Burton, San Rafael, CA (US);
Alan B Harker, Thousand Oaks, CA (US);
William W Ho, Thousand Oaks, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A method for the detection and quantitative analysis of certain selected constituent parts of a gas stream. A gas stream containing the selected constituent is introduced into a reaction zone and contacted with metastable mercury (6.sup.3 P.sub.o) atoms to form an excited complex of the selected constituent and the metastable mercury atom, which decomposes emitting light. The intensity of the light emission is measured and directly correlatable to the concentration of the constituent in the gas stream. The method of the present invention is particularly applicable to the measurement of ambient air containing selected constituents in an amount or concentration in the 1-100 ppb range. The method can be used to measure trace amounts of numerous selected constituents contained in a gaseous stream including such constituents as ammonia, hydrazine, water vapor, alcohols and various amines.