University of Missouri

John Steven Morris

Edward A Deutsch

Adel Abu-Samra

Samuel R Koirtyohann

A method of determining providing analytical services, particularly trace element analysis is disclosed. The method includes supplying a sample container to a customer, having the customer return the sample container with the sample inside the container, and analyzing the sample by neutron activation analysis without opening the sample container.

Method of performing analytical services

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.

Growing community of inventors

Columbia, MO, United States of America

John Steven Morris