Combination marker for liquids and method identification thereof
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United States of America Patent
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Issued Date -
Jan 27, 2005
app pub date -
Jul 25, 2003
filing date -
Jul 25, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A formulation of markers for the identification of liquids is provided. Formulation includes a marker which has a high molar absorptivity in the wavelength range of 600-1000 nm. The invention further provides for a combination marker including a marker with known absorbtivity within a wavelength range and a molecular marker including various molecular formulations and isotopic markers used in conjunction. The invention further provides a method of testing for a marked liquid which employs the testing for an absorbance marker as a screening mechanism to reduce the number of tests for the molecular marker required to assure the unadulterated nature of the liquid.
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