The use of a multiple dye system to enhance the spectral...

Details The use of a multiple dye system to enhance the spectral... The use of a multiple dye system to enhance the spectral...

C - Chemistry, Metallurgy

09

B

C09B 67/22 (2006.01) G01N 33/58 (2006.01)

Patent

CA 2423112

This invention relates to infrared dyes and their use in microparticles. Specifically, combinations of at least two dyes that absorb in the infrared region of light are used to provide a broad absorption spectrum. The infrared dye composition is incorporated in or on microparticles. The microparticles may subsequently be used in determining the presence of a ligand of interest or physical property of a sample.

L'invention concerne des colorants infrarouges ainsi que l'utilisation de ceux-ci dans des microparticules. Elle concerne notamment l'utilisation de combinaisons d'au moins deux colorants qui absorbent la lumière dans la région infrarouge de celle-ci, aux fins d'obtention d'un spectre d'absorption large. La composition de colorants infrarouges est incorporée dans de microparticules ou déposée sur celles-ci. Il est possible d'utiliser ensuite ces microparticules pour déterminer la présence d'un ligand recherché ou une propriété physique d'un échantillon.

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