Lab #1 Extraction and Thin Layer Chromatography Kaya Gaudet 6784928 January 9‚ 2013 Line Structure References BenzophenoneBiphenylBenzoic Acid Extraction: A process used to separate different compounds in a mixture based on their solubility in an immiscible substance. Usually an aqueous and organic phase are used. During extraction the desired compound moves one phase and leaves the unwanted substance behind. Extraction normally has to be done a few times to leave all of the impurities
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Layers and mechanisms: A new taxonomy for the Bullwhip Effect Giovanni Miragliotta In this article‚ Giovanni Miragliotta has two main purposes. The first one is to strengthen the knowledge on the dynamics of a supply chain via a deep review of the Bullwhip Effect. The second one is to build a new framework abled to classify the causes of the Bullwhip effect. Furthermore‚ this framework can distinguish layers and mechanisms that lead to Bullwhip Effect and so help managers to better understand
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OBJECTIVE The purpose of this experiment is to analyze mixtures of compounds prior to‚ during and after a separation scheme. This experiment also allows monitoring reactions of organic molecules‚ and determines the identity of a mixture of compounds. STRUCTURES AND PHYSICAL PROPERTIES OF REACTANTS [1] SOLVENTS | a. Hexane1Molecular Molarity: 86.18 g/molBoiling Point: 69 ºCMelting Point: -95ºCDensity: 0.659 g/mL at 25ºCWater Solubility: Insoluble in waterColor/Texture: Colorless/LiquidHazardous
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1. Physical Layer. Is the physical connection between the sender and the receiver. It includes all the hardware devices (computers‚ modems‚ and hubs) and physical media (cables and satellites). This layer specifies the type of connection and the electrical signals‚ radio waves‚ or light pulses that pass through it. 2. Data Link Layer. Is responsible for moving a message from one computer to the next computer in the network path from the sender to the receiver. This layer has 3 functions: a
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Query Parsing At the Application Layer to Prevent Sql Injection Presented by Saurabh Jain --------------------------------------------------------------------------------------------------------------------- Abstract SQL injection is a code injection technique that exploits a security vulnerability occurring in the database layer of an application. Thus when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly
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Cross Layer Design for Wireless Multimedia Networks Assignment 1 1. Which of the following uses the widest spectrum? (a) 802.16 (b) 802.11 (c) CDMA-2000 (d) UWB Ans: UWB 2. Which of the following is true? (a) Small-scale multipath fading is the primary driver behind wireless communication system design. (b) In the free space loss model‚ there is no frequency effect. (c) Data throughput in sensor networks is a bigger concern
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environmental science & policy 12 (2009) 855–869 available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/envsci Climate and air quality-driven scenarios of ozone and aerosol precursor abatement Kristin Rypdal a‚ Nathan Rive a‚*‚ Terje Berntsen a‚ Hilde Fagerli b‚ Zbigniew Klimont c‚ Torben K. Mideksa a‚ Jan S. Fuglestvedt a a CICERO‚ P.O. Box 1129 Blindern‚ N-0318 Oslo‚ Norway met.no‚ P.O. Box 43 Blindern‚ N-0313 Oslo‚ Norway c International Institute for Applied
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Title Identification of Analgesic Compounds Using Thin Layer Chromatography Abstract The objective of laboratory experiment six was to identify an unknown analgesic tablet using Thin Layer Chromatography (TLC) analysis. The procedure involved preparing TLC plates‚ solubilizing standard analgesics (ibuprofen‚ aspirin‚ acetaminophen‚ caffeine) and the unknown in isopropyl alcohol (IPA)‚ and developing the plates in acetone. Rf values were calculated for each compound. The unknown tablet showed an Rf
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Title Page Chelsea Maksin Organic Chemistry Laboratory 1 Column and Thin Layer Chromatography: The Separation of Spinach Pigments Russ Hoburg 02/15/2012 Abstract The main goal in doing the column and thin layer chromatography was to separate spinach extract into its components based on polarity and then to analyze the components. The separation of the spinach extract was done using the column chromatography with the wet/slurry packing method. Alumina was inserted into the column to act as
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The True Meaning Behind that Layer of Blue Nail Polish When the red-based shades such as pink and orange were the only type of nail polish females dared to wear‚ I remember wondering if in the near future they’d dare switch to completely new shades such as blue or green. Now that day and age has come when all different shades of blue can be seen painted on teens’ nails. Yet‚ this new choice of blue isn’t just another craze of the moment. Rather‚ it symbolizes something slightly deeper
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