Method of identifying chemicals by use of non-radioactive isotop

Details Method of identifying chemicals by use of non-radioactive isotop Method of identifying chemicals by use of non-radioactive isotop

1997-07-15

1999-03-23

Alexander, Lyle A.

Chemistry: analytical and immunological testing

Geochemical, geological, or geothermal exploration

Using chemical tracers

436 56, 436 60, 436161, G01N 3046, G01N 3328

Patent

active

058858385

ABSTRACT:
A method is disclosed for identifying the source of a transported chemical shipment. The method employs either a chemical element or an organic compound with one or more atoms that are non-radioactive isotopes generally not found in nature. A small quantity of the isotopic compound is introduced into the storage vessel containing the chemical to be transported prior to shipment of the chemical. Upon arrival at its destination point, a sample of the chemical shipment is analyzed. Matching the isotopic compound found in the chemical with the isotopic compound introduced into the storage vessel prior to shipment is indicative that the shipped chemical is identical to the chemical received. Non-radioactive materials may further be employed for detecting the source of a newly introduced contaminant in a water supply. The chemical substance may be a non-radioactive isotope of the chemical shipment being transported.

REFERENCES:
patent: 4764474 (1988-08-01), Orelup
patent: 5279967 (1994-01-01), Bode
Advanced Recovery Week, "subsurface liquid flow tracing enhanced by Los Alamos", Nov. 12, 1990, vol. 1 No. 37, pp. 2-3.

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