MCOPS‚ Manipal ANALYTICAL METHODS FOR RESIDUAL SOLVENTS INTRODUCTION: Organic solvents are routinely applied during synthesis of drug substances‚ excipients‚ or during drug product formulation. They are not desirable in the final product‚ mainly because of their toxicity‚ their influence on the quality of crystals of the drug substance and their odor or taste‚ which can be unpleasant for patients. To remove them‚ various manufacturing processes or techniques (usually under
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| Natural Gas | | | | | | | Table of Contents Introduction 3 Principal Factors Influencing Demand 3 Residential and Commercial Heating 3 Price and Fuel Switching 3 Industrial Advancements 3 Growing Environmental Concern 4 Recent Natural Disasters 4 Growing Global Demand 4 Principal Factors Influencing Supply 5 Technology 6 Infrastructure 6 Unconventional Sources 7 Availability 7 About the Industry 8 Natural Gas Price Trends 9 The Future of Natural
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Chemical Composition of Natural Gas Natural gas is a naturally occurring gas mixture‚ consisting mainly of methane. While most of the gas supplied to Union Gas is from western Canada‚ some gas is supplied from other sources‚ including the United States and Ontario producers. While the gas from these sources has a similar analysis‚ it is not entirely the same. The table below outlines the typical components of natural gas on the Union Gas system and the typical ranges for these values (allowing for
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Residual solvents Identification and control of the residual solvents (USP 32(467)‚ page 181 Determination by gas chromatography with mass detector and headspace sampler Conditions of the chromatograph Agilent 7890A (LCTG CGMS): * Column DB-624 30m 0.25 mm 1.4µ (CG-2) * Injector temperatura: 160ºC * Flux: 1.0 ml/min * Split: 5:1 * Carrier gas: Helium * Time per test: 30.6 min Conditions of the detector 5975C inert MSD * Data adquisition mode: Scan/SIM * Mass:
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lead to techniques of combined cycle gas turbine power plants. It is evident that the demand can be met either by increasing the productivity or by making use of alternatives such as the solar energy‚ tidal energy‚ OTEC etc.‚ but the factor of efficiency and performance must also be considered for the better utilization of input. So‚ comparatively to the alternative source of energy‚ solar energy‚ gas energy‚ nuclear energy are more efficient. Several gas turbines are being widely used for power
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Q4 - OE_Strengths What do you see as Southwestern Energy’s particular strengths as an investment? "Exposure to natural gas prices. Exposure to the commodity price. Runway and liquidity position would be another one. Specifically‚ cash balance. Large cash balance." Q5 - OE_Weaknesses What do you see as Southwestern Energy’s particular weaknesses as an investment? "The number one weakness is the balance sheet. They have too much debt. The capital structure is too complicated. There’s too many different
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Greenhouse Gas The greenhouse gas effect is the number one blame for global warming. We could not live without the greenhouse effect. The main gases are ozone‚ nitrous oxide‚ carbon dioxide‚ methane‚ and water vapor. These reflected rays‚ called infrared radiation ‚ keeps the atmosphere warm. They are vital in maintaining the balance in our atmosphere. The greenhouse effect is mostly a result of the sunlight’s energy and the clouds that absorb and reflect heat. Without the greenhouse effect
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Gas Station Project * Main * My Books * C/C++ Programs * Java Programs * Perl/PHP/Ruby Programs * Team Projects * Various Projects Program Description This was a semester-long project from my software engineering class at UNO. The goal of this project was to create a gas station management software package using the classic waterfall development lifecycle. Some of the requirements that needed to be met were: the ability to control gas pumps‚ keep track of in-store
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Kayla Adkins Forensic Chemistry Exam 2 I have been honest and observed no dishonesty. 1. In specific detail‚ describe a published procedure for the definitive identification of Heroin utilizing gas chromatography-mass spectroscopy (GCMS). Heroin is a white crystalline powder with no odor and a bitter taste. It is a derivative of morphine in that the –OH (hydroxyl group) is replaced by an acetyl group‚ -OCOCH3 and has a molecular formula is C21H23NO5 with a molecular weight of 369.42
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The Natural Gas Case In the Natural Gas case‚ a German company and a Dutch gas reseller (the plaintiffs) is suing an Austrian partnership company (the defendant) for a breach of contract. The plaintiffs negotiated and agreed to purchase 3000 metric tons of propane gas for $381 per metric ton from the defendant. Because of the two companies never conducting business with one another‚ the plaintiffs agreed to secure a letter of credit with its purchase. To secure the letter of credit with the purchase
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