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:
Mar. 21, 1978
Filed:
Feb. 18, 1976
Adel Abu-Samra, Irvine, CA (US);
Samuel R Koirtyohann, Columbia, MO (US);
John S Morris, Columbia, MO (US);
The Curators of the University of Missouri, Columbia, MO (US);
Abstract
A rapid, safe and efficient process for the digestion and destruction of organic matter in materials of biological origin. Acid mixtures (nitric and perchloric acids for ashing; appropriate acid mixtures for other digestions) are added to the sample and then heated internally by absorption of microwave energy from a precisely controlled field within a specially modified microwave oven. Apparatus used for the digestions include a microwave oven equipped with an internal, acid-fume resistant box or liner, a positive flow ventilation system through the box, and an acid-fume trap or scrubber for treating the exhaust fumes from the box. Additional apparatus includes a precise timing system for controlling the delivery of microwave energy, or an interrupted duty cycle timing system.