Chemistry: analytical and immunological testing – Geochemical – geological – or geothermal exploration – Using chemical tracers
Patent
1995-06-02
1997-10-14
Alexander, Lyle A.
Chemistry: analytical and immunological testing
Geochemical, geological, or geothermal exploration
Using chemical tracers
436 56, 436166, G01N 3324
Patent
active
056771860
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.
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Anderson, II David K.
Gonzalez Manuel E.
Valenti Nicholas Paul
Alexander Lyle A.
Casperson John R.
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