Page 45 - Applied Pharmacognosy
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Types of Chemical markers
Gas chromatography (GC).
Chromatographic methods for quality control of herbal
drugs Basic Concepts on
chromatography
• Chromatography: physical process by which mixtures can be resolved into
individual components.
• The sample solution is introduced into 2-phase system (stationary phase
and mobile phase).
• Sample components will be distributed in the two phases according to
distribution coefficients (K’).
