PPT-Chromatography

Prepared by Mona Abo Hasera Chromatography First application by M S Tswett 1903 For the separation of plant pigments Since the components had different colors the Greek chromatos. 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?. PREPARED BY-. MD.MARUF HASSAN. Chromatography. The process or technique of separating molecules or components in a mixture . solution (gas or . liquid) . according . to the differential absorption and elution . Invention of Chromatography. Mikhail Tswett. Russian Botanist. (1872-1919). . Mikhail Tswett. invented chromatography in 1901 during his . research on plant pigments. . . He used the technique to separate various plant pigments such as . AP Investigation 5: Photosynthesis – Part I. Chromatography. T. echnique . used to separate a mixture into its component . molecules. The . molecules migrate, or move up the paper, at different rates because of differences in solubility, molecular mass, and hydrogen bonding with the paper. 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 . Principle and Definition. Principle. The principle of chromatographic separation is very simple. The process is achieved by . distributing the substances. to be separated between a . mobile phase. and a . Stationary phase. Mobile phase. Separation AND Characterization. Chromatography Basics. Based on different affinities for stationary and mobile phases. Silica gel: polar, water-covered surface. Compound(s). Lecture 7 a Chromatography I Introduction Chromatography was discovered by Russian botanist Mikhail Semyonovich Tsvett , who separated plant pigments using calcium carbonate columns (1901) Martin and Synge ( . Botanist. In 1906 Tswett used to chromatography to separate plant pigments. He called the new technique chromatography because the result of the analysis was 'written in color' along the length of the adsorbent column. Dr . Debalina. . Basu. Department of Microbiology. Surendranath. College. Paper Chromatography. Principle. What is Descending Paper Chromatography?. Descending paper chromatography is an analytical technique in which the mobile phase moves downward through the stationary phase. In other words, in this method, the development of the paper occurs due to the movement of the solvent downwards on the paper. Therefore, the solvent reservoir should be at the top of the paper. In this process, the movement of the solvent is governed by gravity as well as capillary action.. 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. A. . technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at . different . rates. .. Principle. It is based on the principle of the partition of the solute between two phases/solvents.