--- Experiment 1 : Thin-layer Chromatogragaphy : Analysis of Drug Components CHEM221 Date experiment performed : January 20‚ 2014Date Submitted : January 27‚ 2014 Introduction This laboratory has its first objective to familiarize with the thin layer chromatography (TLC) technique. Second‚ each student has to identify the unknown components by comparing it to one of the tree dissolved liquid analgesics: Acetaminophen‚ Aspirin and Caffeine. Finally‚ calculating the Rf value by measuring
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Checkpoint: OSI Model Paul Tegner IT/242 April 22‚ 2011 Mark Burke OSI Model The OSI Model consists of seven layers. These layers are the application layer‚ presentation layer‚ session layer‚ transport layer‚ network layer‚ data link layer‚ and physical layer. The Application Layer The application layer is responsible for interaction between the operating system and the network services and provides an interface to the system. It provides the user interface to a range
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Larissa VanderZee English 112 30 October 2013 Tourism: Defining the Layers behind the Word It is that time of year again‚ that first week of July where hundreds of thousands of individuals congregate in a small town otherwise not overly populated. That week is known as the National Cherry Festival. Originating in the late 1920’s‚ the annual festival focuses on the beauty of Northern Michigan with a particular spotlight on the cherries harvested in Traverse City’s peninsulas every season. The
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Jaslyn Low Foon Siang CFD Assignment: Laminar Boundary Layer Form a group of 4-5 students to run a CFD simulation in laminar flow to answer the following questions. You can use any geometry with proper dimensions and make necessary assumptions in this simulation. Questions a) Show the developing and developed flow patterns. b) Show the inviscid and laminar flow patterns. c) Show the growth of the boundary layers. d) Compare the boundary layer thicknesses with Blasius solution. e) Show the centerline
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The federal court system is made up of 3 layers: the district courts‚ the circuit courts. These are the first layer of appeal. The final layer is appeal in the federal courts. There are 94 district courts‚ 13 circuit courts‚ and one Supreme Court throughout the country. The Supreme Court is the only court specifically mentioned in the Constitution; Article III mentions the Supreme Court. District courts were created by acts of congress. All the judges and justices are picked by the president
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Introduction Chromatography is a technique used to separate a mixture into its individual components. In this experiment‚ chromatography is done by using a thin layer chromatography (TLC) plate and filter paper. The word ‘chromatography’ itself means the separation of colours. However‚ nowadays‚ both coloured and colourless compound are used in chromatography by various methods. In chromatography‚ the separation process of mixture is mainly based upon the polarity and molecular weight of sample
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Thin Layer Chromatography of the Unknown Analgesic Jessica Bajao*‚ Phoebe Abalos‚ Kevin Antiga‚ Carmelus Aseneta 3-Biology 2 College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The group used five different analgesics in this experiment: aspirin‚ acetaminophen‚ ibuprofen‚ caffeine‚ and mefenamic acid. Six analgesics were spotted on the TLC plate including the unknown. After the development of the TLC plate‚ it was placed under ultraviolet light for the spots resulted
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Title: Thin-Layer Chromatography Objectives: Part1: 1. To learn the technique of TLC and the visualization of colourless components. 2. To identify an unknown drug by a TLC comparison with standard compounds. Part 2: To learn the separation technique by using Thin Layer Chromatography plate in separating a mixture of compounds into individual pure compound by using Spinach Leaf. Introduction: (i) General Concepts Chromatography is a common and powerful method used to separate and analyze complex
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when I was about 4 years old. It had been the hay day of emo kids‚ and when my natural golden locks weren’t really doing anything to help my Myspace photos‚ I had decided to add red highlights‚ then chopped it‚ then blonde highlights with an under-layer of black. Now it was time for more. Needless to say‚ my catholic school wasn’t too happy about this‚ but I had already received the punishment of a year’s worth of lunch and recess at the principals office‚ so there wasn’t much more they could do.
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cause of environmental degradation The primary cause of environmental degradation is human disturbance. The degree of the environmental impact varies with the cause‚ the habitat‚ and the plants and animals that inhabit it. ------------------------------------------------- Habitat Fragmentation Habitat fragmentation carries long term environmental impacts‚ some of which can destroy entire ecosystems. An ecosystem is a distinct unit and includes all the living and non-living elements that reside
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