Food Chemistry 134 (2012) 696–703 Contents lists available at SciVerse ScienceDirect Food Chemistry journal homepage: www.elsevier.com/locate/foodchem Characterisation of calamansi (Citrus microcarpa). Part II: Volatiles‚ physicochemical properties and non-volatiles in the juice Mun Wai Cheong a‚ Danping Zhu a‚ Jingting Sng a‚ Shao Quan Liu a‚ Weibiao Zhou a‚ Philip Curran b‚ Bin Yu b‚⇑ a b Food Science and Technology Programme‚ Department of Chemistry‚ National University of Singapore‚ Science
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Save the ailing Earth from vehicular pollution Environmental pollution is one of the most serious problems facing humanity and other life forms on our planet today. Since the rise of the advancement of awkward prepositional phrasing technology‚ pollution had already started its harm as well; awkward phrasing from the dropping of the first atomic bomb‚ which results to land‚ water‚ and air pollution‚ to the industrialized world that pollutes the entire earth. People had been attempting to stop
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Explosives A chemical explosive is a compound or a mixture of compounds susceptible of a rapid chemical reaction causing a quick physical outburst of gases or heat radiation. The first explosives were created by the Chinese in the 11th century. These were mixtures of nitrate salts‚ sulfur and charcoal‚ now known as black powder. Gunpowder which is a low explosive‚ exhibits deflagration‚ or rapid burning‚ rather than detonation‚ the reaction exhibited by high explosives. While‚ perhaps counterintuitively
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Running Head: INFECTION CONTROL Infection Control Research Paper Lauren E. Wilkes Kaplan Career Institute RSP 101: Introduction to Respiratory Care Theresa Motyka B.B.A.‚ RRT‚ CPFT November 8‚ 2013 Infection Control Research Paper Picture this it is 5:00 a.m. is the morning you woke up to sharp‚ deliberating stomach cramps‚ sweating profusely and the chills throughout your entire body. You go to the kitchen and take your temperature‚ 103.5‚ you question
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Reactions of pyridine Introduction: 1. Pyridine structure: 2. Iupac name: Pyridine‚ other name: Azine & Azabenzene. *Important commercial alkyl pyridinium compound is α - methyl- pyridine (2)‚ βpicoline (3)‚ γ- picoline ( 4 ) ‚ 2‚6 - lutidine ( 5 ) ‚ 3‚5 - dimethyl- pyridine ( 6 ) ethyl-2 - methyl- pyridine ( 7 ) and 2‚4‚6 - collidine ( 8 ) . In general‚ the alkyl -substituted pyridine as many other precursors used in pyridine E-commerce. From these further alkyl substituted pyridine
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BIOL 140 Lab—The Chemical Composition of Cells Name ____________________________ I) Introduction All cells contain four major types of macromolecules: carbohydrates‚ lipids‚ nucleic acids‚ and proteins. In today’s lab‚ we will be studying three of the four-proteins‚ carbohydrates and lipids. Various chemical tests can be used to detect the presence of each of these molecules. Most of the tests involve a color change visible to the eye. If a color change is observed‚ the test is considered positive
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level where we breathe. Pollution from vehicles gets revealed through symptoms like cough‚ headache‚ nausea‚ irritation of eyes‚ various bronchial problems and visibility and are due to discharges like CO‚ unburned HC‚ Pb compounds‚ NOx‚ soot and aldehydes‚ among others‚ from the tail pipes of vehicles. High vehicle density in Indian urban centers. Older vehicles predominant in vehicle vintage. Inadequate inspection and maintenance facilities. Predominance of two stroke two wheelers. Adulteration
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Grignard Synthesis of Triphenylmethanol Aim The aim of this experiment was to prepared Grignard reagent (phenylmagnesium bromide) from bromobenzene and magnesium‚ to use the reagent prepared to synthesise a tertiary alcohol (triphenylmethanol) by reacting reagent and ester (methyl benzoate)‚ and the product formed is analyse by infrared spectroscopy (IR)‚ melting point‚ thin layer chromatography (TLC)‚ gas chromatography mass spectrum (GCMS) and finally Nuclear Magnetic Resonance spectroscopy. Introduction
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Adrenergic Agonists (a.k.a. Sympathomimetic Drugs) I. Direct stimulants of α and β receptors 1. Epinephrine (Adrenaline) 2. Norepinephrine (Levophed) 3. Levonordefrin (Neo-Cobefrin) 4. Dopamine (Intropin) 5. Ephedrine II. Direct stimulants of α receptors (α agonists) 1. Phenylephrine (Neo-synephrine) III. Direct stimulants of β receptors (β agonists) 1. Isoproterenol (Isuprel) 2. Selective stimulants of β2 receptors in the bronchi (for asthma) 2.a. Salbutanol (Ventolin) 2.b. Terbutaline
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SC/BIOL 2020.03 Biochemistry Midterm #1 Name: Student ID: Feb 7th‚ 2013 Time: 1 hr and 15 min This test has multiple choice: 24 Marks. Fill in the blanks: 10 Marks Peptide structure: 6 Marks There are a total of 10 pages of this exam. You are allowed to use a non-programmable calculator. For multiple choice: Choose the BEST answer and indicate your choice on the scantron. Please use a pencil. 1 1. Which of the following weak interactions is NOT due to differences in electrical
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