Column and Thin Layer Chromatography Beverly Abstract: Plant pigments were separated and concentrated from a crude spinach extract through the use of column chromatography and an eluatropic series of hexanes‚ hexane/acetone‚ and methanol. The pigments were analyzed using thin layer chromatography with a 30% ethyl acetate/hexane developing solvent. Introduction: Chromatography is a technique used to separate a mixture of two or more components based on
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Date:7.6.2013 Objectives: Part 1: (i)To learn the technique of TLC and the visualization of colourless components. (ii)Identify the unknown drug by a TCL comparison with standard components. Part2 :to learn the separation technique by using TLC plate in separating a mixture of compound by using spinach leaf. Apparatus:UV lamp‚capillary ‚250 ML beaker Materials:aspirin‚acetaminophen‚caffeine‚unknown A‚unknown B‚TLC plates‚ethyl acetate‚Hexane‚acetic acid‚iodine Introduction: Procedure:
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Although Helium exists in the atmosphere of Earth in small quantities‚ it is one of the most common element in the universe. It is a rare gas on earth. Helium was first discovered by Pierre Janssen in the spectrum of the sun during an eclipse in 1868. It was shortly identified as an element and was named by the chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer. Helium has an atomic number of 2 and an atomic weight of 4.002602. Helium is represented by the symbol
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removing the –OH group on 4-methylcyclohexanol via dehydration and to have a double bond form via a loss of a hydrogen on a β-Carbon. Many techniques and skills were developed in this lab. Among them were dehydration‚ isolation‚ drying‚ and distillation. We used all of these techniques to get the product we were looking for. In addition to these experimental techniques we also verified our product via spectroscopy which is a new technique. Using IR spectroscopy we were able to specifically
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DISTILLATION ABSTRACT Distillation‚ one of the most significant method for separating a liquid mixture and its components‚ is a process that relies on differences by the ease of vaporization of the components. The purpose of this process is either the separation of a mixture of volatile components from nonvolatile materials is carried out by a simple distillation in which the material is placed to distill and heated‚ the vapor from the substance is removed and condensed. In this activity
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Håvard Devold Oil and gas production handbook An introduction to oil and gas production ISBN 978-82-997886-1-8 PREFACE This handbook has been compiled for readers with an interest in the oil and gas production industry. It is an overview of the main processes and equipment. When we searched for a suitable introduction to be used for new engineers‚ I discovered that much of the equipment is described in standards‚ equipment manuals and project documentation. But little material was
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Common Name: Pearl Scientific Name: Calcium Carbonate Formula: CaCO3 Fundamental particles: Pearls are comprised of a positive Calcium ion (Ca+) and a negative Carbonate polyatomic ion (CO3+) Usage: Jewelry Properties: Pearls are good jewelry because they are hard and lustrous. Pearls are hard because of the strong Intermolecular forces created between the Calcium and the Carbonate ions. The pearls luster is dependent on the amount of nacre excreted. The Oyster produces nacre when
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COMPANY PROFILE About Eksons Corporation Berhad Incorporated in 1990‚ Eksons Corporation Bhd was listed on the Second Board of the Kuala Lumpur Stock Exchange (now Bursa Malaysia Securities Bhd). After a reverse takeover in April 2000‚ Eksons was subsequently promoted to the Main Board in February 2001. The Eksons Group specialises in the manufacturing of tropical thin plywood of less than 3.0 millimeter in thickness‚ particularly in the 2.5 and 2.7 millimeter categories. The plywood is sold under
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Product Portfolio Analysis ‘Coca-cola’ is my chosen business. SWOT – Strengths‚ Weaknesses‚ Opportunities‚ Threats. S- 1. ‘’Bottling Network: Coca-Cola partnerships with 275 bottling companies allow it to distribute products all over the world. The network also allows companies to cater to varying consumer tastes in different cultures‚ regions and countries. For example‚ if a local market prefers tea then the local bottler can mix and package the beverage for distribution. It has relationships
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Types of ventilation - Induced draft ventilation – Turbine ‚Acc module - Positive ventilation- LGB‚ Exhaust Ventilation System Design features • Induced Draft Ventilation • Number of compartments • Accessory compartment • Turbine compartment • Aft compartment • Generator Enclosure • 2 X 100 % Roof mounted centrifugal fans • Auto change over • Fan outlet gravity dampers‚ CO2 dampers and silencers provided • Enclosure Air inlet hoods with filter panels • Slow cool down fan provided for Turbine
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