References: 1. Skoog‚ D. A.; Holler‚ F. J.; Crouch‚ S. R. Principles of Instrumental Analysis. Sixth Edition‚ Thomson Brooks/Cole‚ USA‚ 2007. 2. Krugers‚ J. Instrumentation in Gas Chromatography. Centrex Publishing Company-Eindhoven‚ Netherlands‚ 1968. 3. Hubschmann‚ H. Handbook of GC/MS: Fundamentals and Applications. Wiley-VCH
Premium Chromatography Gas chromatography
though we recognize that energy is not a physical substance‚ we choose to use the substance metaphor to describe it. We’ll use three principles to guide us in the development of the energy concept. 1. Energy can be viewed as a substance-like quantity that can be stored in a physical system. 2. Energy can “flow” or be “transferred” from one system to another and so cause changes. 3. Energy maintains its identity after being transferred. If you are unsure what we mean by the use of a substance
Premium Energy Thermodynamics Entropy
Jeana Greaves Chem3301-112 June 19‚ 2013 Synthesis of Aspirin from Methyl Salicylate Introduction The synthesis of Aspirin (Acetyl Salicyclic Acid) began with methyl salicylate and sodium hydroxide as the reagent. The polar oxygen accepts the electrons from now positively charged hydrogen. The positively charged sodium disassociates leaving the hydroxide ion with a negative Scheme 1 shows the mechanisms that were demonstrated during the synthesis of Aspirin. charge that attracts to the positively
Premium Aspirin Salicylic acid Water
Synthesis of Acetanilide By: Rick Whitely April 9‚ 2013 Organic Chemistry Lab 1; Professor J. Hutchison Recrystallization is a common method of purifying organic substances through the differences in solubility at different temperature. In this experiment‚ acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heated water bath. The solution was cooled slowly in an ice bath as crystals form out. As the compound crystallizes
Premium Amine Oxygen Acetic acid
Lab Report Macrocyclic Synthesis (Heme Analog) I. Purpose of Experiment and Introduction The purpose of this lab experiment is to prepare meso-tetraphenylporphin (TPP) and its copper‚ cobalt or zinc complex by condensing benzaldehyde with pyrrole in boiling propanoic acid. II. Introduction and Background There are two types of proteins that function as oxygen carriers: myoglobin (stores the oxygen) and hemoglobin (present in red blood cells and is responsible for oxygen transport)
Premium Distillation Chemistry Acetic acid
MPU-2312 CIVIC CONSCIOUSNESS AND VOLUNTEERISM COURSEWORK PROPOSAL OF VOLUNTEER OR CHARITY PROJECT ‘SELLING TO SPREAD SMILE’ PROGRAMME: DBU 6 TUTOR: MR MUGUUNTHAN Type of volunteer and charity project The type of volunteer and charity project to be carried out by our tutorial group is a selling campaign. The theme of our selling campaign is ‘Selling to Spread Smile’. Objectives of the project One of the objectives of this project are to develop consciousness toward our own potential
Premium Project management Department store Kuala Lumpur
Trans Fats Ban Doughnuts are one of my favorite foods. I don’t eat them regularly‚ maybe once a month so they are an occasional treat for me. Darryl Townson‚ owner of “Dat Doughnut” shop in Illinois makes his living from the fried sugary goodies. Recently‚ lawmakers have been pushing for a ban on artificial trans fats. Such a ban would mean that people like Townson would have to alter the way he makes his doughnuts. Here in Washington‚ a similar bill has already been passed in King County. I
Premium Nutrition Food Food safety
1. Explain the events that probably gave rise to journal entries 1 through 8 of exhibit 1. a. Entry 1: Miss barbarra Thompson opened the company investing USD 65‚000.00 cash and USD 100‚000.00 from Bank Borrowings. b. Entry 2: The company paid its Rent amounting to USD 1‚485.00 c. The company bought inventory items worth USD 137‚500.00 on credit. d. The company bought Furnitures and Fixtures (10 years useable life) for cash amounting to USD 15‚500.00 e. The company
Premium Balance sheet Generally Accepted Accounting Principles Accounts receivable
Abstract – This multi-step synthesis uses aniline as the starting reagent to synthesize five compounds employing several reactions such as acetylation‚ diazo coupling‚ nitration‚ bromination‚ and hydrolysis. The isolated products were analyzed with TLC and spectral data that determined most products were pure while some had a few impurities indicated by GC‚ LC‚ and a wide melting point range was shown for products 2 and 3. The presence of water in product 2 and 7 was indicated by the IR. Acetanilide
Premium Chemistry Chemical reaction Oxygen
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level 5070/31 CHEMISTRY Paper 3 Practical Test October/November 2010 CONFIDENTIAL INSTRUCTIONS *4711088250* Great care should be taken to ensure that any confidential information given does not reach the candidates either directly or indirectly. The Supervisor’s attention is drawn to the form on page 7 which must be completed and returned with the scripts. If you have any problems
Premium Sodium hydroxide Sodium Hydrochloric acid