PPT-Chromatography

Invention of Chromatography Mikhail Tswett Russian Botanist 18721919 Mikhail Tswett invented chromatography in 1901 during his research on plant pigments He used the technique to separate various plant pigments such as . Supervisor:. Anton Zavialov. By: . Elham Barazeghi. Mehrafarin Ramezani. Affinity Chromatography:. Separation of proteins by reversible interaction of proteins and specific ligand in matrix of column. and Linkage Analysis. Natasha E. Zachara Ph.D.. nzachara@jhmi.edu. What questions might you ask?. What . monosaccharides. modify my protein?. What oligosaccharides modify my protein?. How are these sugars linked to each other?. The next two (2) experiments introduce Gas Chromatography and Simple & Fractional Distillation. This Week. Gas Chromatography – Acetates. Pavia – p. 817 - 836. Slayden – . p. 39 - 31. . Introduction. Chromatography is a widely used method of separating mixtures into their component parts. .. Paper chromatography separates substances using two things (called phases). The first thing is chromatography paper; also called the . Hazards and Controls. Flash Chromatography. Hazard . Control. Spilled solvent could contact skin. Solvent could penetrate through gloves and contact skin . Wear goggles, gloves (nitrile), and lab coat. Instrumentation. Invented by a Russian Botanist Mikhail . Tswett. in 1903 . He used chromatography . . to separate the colour . . pigments in plants from . . one another. Chromatography is a separation technique in which a mobile phase carrying a mixture moves in contact with a selectively adsorbent stationary phase. (TLC). Thin layer chromatography (TLC) is an important technique for. identification. and . separation. of mixtures of organic compounds. It is useful in:. Identification of components of a mixture (using appropriate standards). Evidence. 1. Class characteristic—ink analysis, paper analysis, most handwriting analysis. 2. Individual characteristic--With document analysis, it is difficult to identify to an individual characteristic except with typewriter or printer specific marks.. GC . is currently one of the most popular methods for separating and analyzing compounds. . GC can be applied to the separation of any compound that is either naturally volatile (i.e., readily goes into the gas phase) or can be converted to a volatile derivative.. . Chemistry. II. Gas. . Chromatography. Mobile . phase. : . inert. . gases. (. helium. , . nitrogen. , argon . etc. ). Stationary. . phases. : in . capillary. . column. Liquid (. siloxane. . polymers. A sample containing the materials to be separated is injected into the gas chromatograph. . Gas Chromatography. A mobile phase (carrier gas) moves through a column that contains a wall coated or granular solid coated stationary phase. . Dr.Methak. A . ljboori. Ion Exchange Chromatography. Ion exchange chromatography (IEX) is a technique that is commonly used in . biomolecule. purification. It involves the separation of molecules on the basis of their charge. The word Chromatography is derived fro two Greek . words –. Chroma . means – colour and . graphein. . to write. . Chromatography is the collective term for a family of laboratory techniques for the separation of mixtures. Definition. Ion-exchange chromatography. (or . ion chromatography. ) is a process that allows the separation of ions and polar molecules based on the charge properties of the molecules. . 1975 by Small, Stevens and Baumann.