Bhindia Pooja Rayel Title : Paper Chromatography Photochemical Smog Lecturer’s Name : Ms. Usha Nanthini Table of Content No. | Content | page | 1. | Paper Chromatography | | | 1.1 Definition | | | 1.2 Background | | | 1.3 Rf Values | | | 1.4 Principles of Paper Chromatography | | | 1.5 Procedure of Paper Chromatography | | | 1.6 Uses of Paper Chromatography | | | 1.7 Application of Paper Chromatography | | 2. | Photochemical Smog | | | 2.1
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PROCEDURE Part I Setting Up Experiment 2D: Separation of a mixture by Paper Chromatography Objectives: 1. To assemble and operate a paper chromatography apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health
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Jacobsen’s Method of Epoxidation of an Alkene | | Abstract Various types of reactions were completed to first create and then use Jacobsen’s catalyst in the asymmetric epoxidation of an unknown alkene with bleach in the laboratory. The chiral epoxide synthesized was then characterized with GC/MS and NMR. With this information the unknown alkene was able to be identified as 4-chlorostyrene. Introduction Organisms have evolved with mechanisms that use specific enantiomers of molecules
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pH and Chromatography Lab Report Kevin Rivera Biology Mr. Langley 2C 10/7/13 Introduction In this lab‚ of pH and Chromatography‚ in the pH aspect of the lab we are trying to figure out the pH level of certain chemicals by writing down of known solutions to find the type of unkown solution using pH standards. In the Chromatography‚ we are trying to separate the chemicals using water and a piece of paper. Methodology Materials: Safety Goggles pH indicator & pH indicator key
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is equal * protein aggregates since the electrostatic repulsive forces are at a minimum. 4. Precipitation with organic solvents or acidic protein precipitants -addition of O.S decreases dielectric constant PURiFICATION 1. Column chromatography 2. Density gradient centrifugation 3. Electrophoresis 4. enzymatic digestion 5. Removal of small ions or molecules or to exchange one ionic environment for another during purification is done by : Dialysis‚ Ultrafiltration
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Journal of Food Engineering 95 (2009) 240–253 Contents lists available at ScienceDirect Journal of Food Engineering journal homepage: www.elsevier.com/locate/jfoodeng Review Application of supercritical CO2 in lipid extraction – A review F. Sahena a‚ I.S.M. Zaidul a‚*‚ S. Jinap a‚ A.A. Karim b‚ K.A. Abbas a‚ N.A.N. Norulaini c‚ A.K.M. Omar b a b c Faculty of Food Science and Technology‚ Universiti Putra Malaysia‚ 43400 UPM Serdang‚ Selangor D.E.‚ Malaysia School of Industrial Technology‚ University
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Experiment # 4 Paper Chromatography 1. Why is the chromatogram developed in an essentially closed system? - The chromatogram is developed in a closed system in order to prevent the solvent to evaporate. Most solvents used in the chromatograph are toxic and flammable. It is also put in a close system to reduce the chance of outside factors affect the chromatograph. 2. What is the main advantage of 2-dimensional paper chromatography over a 1-dimensional one? - The
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For as long as I can remember‚ I have been fascinated by marine life. I visited the Baltimore Aquarium many times as a child; I remember being amazed by the different kinds of animals I saw. I spent my summers at the library reading about marine organisms‚ their habitats‚ their adaptations‚ and how they interacted with other organisms. In middle school‚ I participated in a project that consisted of decorating the classroom to represent a biome‚ and I worked on the marine biome. In the summer before
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S OUTHEAST ASIAN J T ROP MED P UBLIC H EALTH ANTI-HEAD LICE EFFECT OF ANNONA SQUAMOSA SEEDS Junya Intaranongpai 1‚ Warinthorn Chavasiri 2 and Wandee Gritsanapan 1 1 Department of Pharmacognosy‚ Faculty of Pharmacy‚ Mahidol University‚ Bangkok; Department of Chemistry‚ Faculty of Science‚ Chulalongkorn University‚ Bangkok‚ Thailand 2 Abstract. The present study focused on the separation and identification of the active compounds against head lice from the hexane extract of Annona squamosa
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Introduction Tetraphenylporphyrin will be synthesized and metallated with silver acetate. After purification and NMR and UV-visible spectra was taking for the original porphyrin synthesized and the silver porphyrin. From this data obtained we will talk about silver’s effect on porphyrin. Theory Porphyrin is important to study because it plays keys roles in biological process; they are responsible for giving plants and blood their colors green and red respectively. Porphyrins have the iron chelate
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