Techniques for analyzing products containing a coloring agent

A method is provided for detecting a tracer in a preparation by precipitating a coloring agent from a sample of the preparation, especially where the coloring agent otherwise interferes with detection of the tracer. A sample of the preparation may be contacted with an effective amount of a precipita...

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Bibliographische Detailangaben
Hauptverfasser:	GILL RICHARD P, PHILIPS J. CHRISTOPHER
Format:	Patent
Sprache:	eng
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TESTING
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Beschreibung
Zusammenfassung:	A method is provided for detecting a tracer in a preparation by precipitating a coloring agent from a sample of the preparation, especially where the coloring agent otherwise interferes with detection of the tracer. A sample of the preparation may be contacted with an effective amount of a precipitating agent to precipitate the coloring agent in the sample, yielding a sample supernatant having a reduced concentration of coloring agent compared to the preparation. Detection of the tracer in the supernatant may produce a result which may be evaluated to assist in quality validation in a process of manufacturing the preparation or authenticating the preparation.