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Introduction to Chromatography Column chromatography and HPLC Pharmaceutical Instrumental Analysis Lina A. Dahabiyeh Basic of Chromatography Chromatography is a separation technique to seprate mixtures into their components in order to identify (qualitative analysis), purify and/or quantify (quantitive analysis) the mixture or components. Chromatography is the most frequently used analytical technique in pharmaceuticalanalysis. Chromatography aims to separate a mixture of chemical substances into its individual components, so that the individual components can be thoroughly analyzed. TwoPhases: Stationary Phase (stays in a place): Liq or solid MobilePhase(flowsthroughcolumnormoveinaplate,carriesanalyte):Liqorgas History of Chromatography The Russian botanist Mikhail Tswett coined the term chromatography in 1906 to describe his experiments in separating different colored constituents of leaves through a column. ”Chromatography”;Khroma(colour)andgraphic(writing) Classification of Chromatography Based on: Mechanism of Separation: Normal or Reversed, ion-exchange chromatography,affinity chromatography Shape of the stationary Phase: Column or Planer The Physical State of the mobile phase: Liquid chromatography (LC) or Gas chromatography (GC) The purpose of separation: Analytical or Preparative
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