Analyzing method for coloring material composition

Details Analyzing method for coloring material composition Analyzing method for coloring material composition

2005-12-15

2009-06-02

Larkin, Daniel S (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

C073S061520, C073S061540, C210S198300, C210S658000

Reexamination Certificate

active

07540184

ABSTRACT:
It is an object of the present invention to provide a method capable of easily identifying a coloring material composition. The method performs a chromatography step of loading a subject sample containing the coloring material composition to a chromatography apparatus that holds a separating base material containing a cellulosic material and a metallic oxide material, and of performing a chromatography using a mobile phase of a liquid in the analysis of the coloring material composition. According to such a chromatography apparatus, coloring materials contained in the coloring material composition can be favorably and easily separated.

REFERENCES:
patent: 3701678 (1972-10-01), Rossler et al.
patent: 5811665 (1998-09-01), Gregor et al.
patent: 5889180 (1999-03-01), Mc Culloch et al.
patent: 6420181 (2002-07-01), Novak
patent: 2007/0102635 (2007-05-01), Ma et al.
patent: 1258003 (2000-06-01), None
patent: 2001-4612 (2001-01-01), None
patent: 2001-260381 (2001-09-01), None
English translation of CN 1258003 dated Jun. 28, 2007.
Patent Abstract of Japan and JPO Complete English Translation of JP 2001-260381 dated Sep. 25, 2001.

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