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:
Premium Thin layer chromatography Acetic acid
CVEN9802 Structural Stability Beam Columns Chongmin Song University of New South Wales Page 1 CVEN 9802 Stability Outline • Effective Length Concept • Beam-Column with Distributed Load • Column with Imperfection • Southwell Plot • Column Design Formula Page 2 CVEN 9802 Stability Fundamental cases of buckling PE EI 2 L 2 2 2.045 EI P 4 EI Pcr cr 2 L2 L 2 Pcr 2 EI 4L 2 PE 2 EI L2 Page 3 CVEN 9802 Stability What is
Premium Trigraph Buckling Beam
Discussion Using the Thin Layer Chromatography experiment‚ caffeine was found to be the most polar due to the fact that it stayed closer to the stationary phase. Caffeine contains four amine groups that are extremely polar as a result of the hydrogen bond and amide functional group. Acetaminophen was found to be the second most polar analgesic drug tested. Acetaminophen contains a polar alcohol group on one side and amide group on the other but also includes non-polar functional groups that consisted
Premium Aspirin Paracetamol Ibuprofen
Name Date Lab: Denisty – Solids and Liquids Part 1: Density Background Information: The density of an object is how much “stuff”‚ or molecules‚ a substance is made of. Density is how tightly packed the molecules are. To calculate the density of a substance we need to know the mass (weight) of the substance and the volume (how much space) of the substance. Mass is determined by weighing an object. Volume of regular shaped objects is calculated by measuring
Premium Density Kilogram Volume
I. Introduction A. Purpose The purpose of this lab was to practice measuring the mass and volume of different samples and to calculate the density and specific gravity of those samples using the measurements. B. Equipment 1. Electronic balance- The electronic balance is a device used to measure the exact mass of an object 2. Graduated cylinder- The graduated cylinder is a tool used to measure the volume of a liquid 3. Pipets- Pipets are small tubes that suck up and contain liquids C. Technique
Premium Chemistry Water Test method
A Glance at the Session Layer of the OSI Model Throughout the history of networking‚ one model has stood the test of time for providing not only insight‚ but also a foundation by which all networking systems utilize in some form or fashion. The seven layers of the OSI model‚ which stands for Open System Interconnect‚ are: Application‚ Presentation‚ Session‚ Transport‚ Network‚ Data link‚ and Physical. These layers are the framework for networking‚ because they represent the roadmap‚ rules‚ and
Free OSI model Internet Protocol Suite
ROLE OF YOUTH IN OZONE LAYER PROTECTION Ozone layer plays a vital role in protecting animals‚ human beings and plants from ultraviolet radiation. Ozone layer is destroyed by a group of manufactured or human made chemicals such as chlorine bromine. These chemicals are called "ozone-depleting substances". Ozone layer is destroyed by some natural’s ways and some humane made activities. A single molecule of chlorine can break apart thousands of molecules of ozone. Chlorofluorocarbons the most widely
Premium Ozone depletion Ozone depletion
social circles‚ backgrounds‚ or cultures‚ making the need for quality our first objective” (Easy in Organizations 2009). Managers must encourage and reprimand based on actual occurrences and work productivity rather than the differences in the four layers of diversity‚ personality and internal‚ external and organizational dimensions we possess that make up the diversity (Kinicki‚ A and Kreitner‚ R. 98). Diversity by definition is the “multitude of individual differences and similarities
Premium Employment Organizational studies Organization
using thin-layer chromatography. The unknown’s behavior in thin-layer chromatography will be compared with that of its possible component analgesics. The possible unknowns and their analgesic ingredients will be Anacin (aspirin‚ caffeine)‚ Excedrin (acetaminophen‚ caffeine‚ aspirin)‚ Motrin (ibuprofen)‚ and Tylenol (acetaminophen). Introduction Thin-layer Chromatography(TLC) was the method used to figure out and identify the drug. TLC is done on a plate that is coated with a layer of absorbent
Premium
DENISTY LAB 2/25/13 Chemistry H. Mrs. Halme Objective: Your task is to determine the density of 3 known metals: Zinc‚ Copper‚ and Lead. They are each marked. You must then calculate the density of an unknown metal and determine its identity based on your data from your known samples. Reagents: None Equipment: Lead Copper Zinc Triple Beam Balance Graduated cylinder Unknown metal (Magnesium) Beaker Calculator Procedures Preparation: We observed the given equipment
Free Calculator Mathematics Division