Use of compounds which absorb and/or fluoresce in the IR region

Details Use of compounds which absorb and/or fluoresce in the IR region Use of compounds which absorb and/or fluoresce in the IR region

1998-07-17

1999-12-07

Alexander, Lyle A.

Chemistry: analytical and immunological testing

Tracers or tags

436172, 436 60, 436 30, 436 27, G01N 3322

Patent

active

05998211&

ABSTRACT:
Use of compounds from the class of the phthalocyanines, naphthalocyanines, nickel dithiolene complexes, aminium compounds of aromatic amines, methine dyes or azulenesquaric acid dyes which have their absorption maximum in the range from 600 to 1,200 nm and/or a fluorescence maximum in the range from 620 to 1,200 nm, as markers for liquids, a process for detecting markers in liquids, and a detector suitable for this purpose.

REFERENCES:
patent: 5525516 (1996-06-01), Krutak et al.
Symposium on Modern Analytical Techniques for the Analysis of Petroleum, pp. 291-304, Aug. 25-30, 1991, Marilyn V. Reyes, "Derivative Spectroscopy as an Analytical Tool for Hydrocarbon Identification".

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