EXPERIMENT 15 Thin-Layer Chromatographic Analysis of Drug Components Experiment Objective: To identify the components of an analgesic drug tablet and then correctly identify the tablet from a group of others with acquired data. Experiment Summary: In this experiment‚ we use TLC to identify components of an unknown analgesic drug. We prepare a solution of the drug by dissolving part of a tablet in 1:1 ethanol/dichloromethane‚ then spotting a TLC plate with the solution along
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Malcolm Gladwell argues that we have to spend 10‚000 hours in order to master a skill. Elon Musk has worked 100 hours a week for more than 15 years which is a total of 76‚000 hours. Perhaps‚ this is one of the reasons why he is one of the biggest outliers. Elon Musk is a 39-year-old engineer and entrepreneur. At 28‚ he co-founded popular e-payment company Paypal. He then went on to start spaceX‚ the first private company to launch a rocket into space‚ and Tesla motors‚ which builds electric cars
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Purpose of the Experiment: The intention of the experiment is to use solvent extraction methods to separate a mixture containing a carboxylic acid and a neutral compound. Once recovered‚ the solids were purified by recrystallization and examined by thin-layer chromatography‚ and their identities were derived by melting point and infrared (IR) spectroscopy. Extraction is a procedure that selectively dissolves one or more of the mixture compounds into a proper solvent. Extraction refers to the moving
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Adrian Wolanski GD23665 McDonalds Getting thin while getting fat You might ask yourself‚ how is it possible to get thin while getting fat at the same time? The question refers to the dilemma of how our culture and values have changed in the more recent years‚ to how a corporation can still maintain to be profitable. Let’s face it‚ McDonalds has never been the first restaurant that would pop into your mind while thinking of a place to eat healthy‚ nor even the last‚ be honest. Health and fitness
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Cover Story Cola variants Spreading cola brands too thin Over the past 20 years‚ the battle for supremacy between Coca-Cola and Pepsi has resulted in the launches of numerous brand extensions. In combating decline in the fizzy drinks market‚ are the cola giants wise to rely on new variants to protect market share? By Mark Choueke variants. Coca-Cola added Diet Coke with Lemon to its permanent range this year‚ only for PepsiCo to follow with lemon and lime-flavoured Pepsi Max Twist. Not to be
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Available online at www.sciencedirect.com Energy Procedia 00 (2011) 000–000 Energy Procedia 15 (2012) 58 – 66 Energy Procedia www.elsevier.com/locate/procedia International Conference on Materials for Advanced Technologies 2011‚ Symposium O Thin Single Crystalline Elongate Silicon Solar Cells Andrew Blakers*‚ Vernie Everett‚ Jelena Muric-Nesic and Elizabeth Thomsen Centre for Sustainable Energy Systems‚ Australian National University‚ Canberra‚ Australia Abstract Efficient singlecrystalline
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Skating on Thin Ice Nick Young “Do you believe in miracles? YES!” – Al Michaels The long icy road to the gold medal for ice hockey during the 1980’s Olympic Hockey Competition was not one for the weak or feeble. A group of young college athletes from different‚ some rival‚ schools went through trial and tribulation and came together and take on seemingly unbeatable circumstances‚ much like a protagonist would in a classic grail quest. Throughout the journey‚ the team of young students
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Studies on chemically deposited Pb(S‚Se) thin films J. D. Chaudhari *‚ R.D. Chaudhari * *‚ Dr. R. H. Bari + Department of Physics‚ G. D. M. Arts‚ K. R. N. Commerce & M. D. Science College‚ Jamner.Pin – 424 206 Abstract : Thin films of Pb(S‚Se) [lead sulfoselenide] have been prepared on glass substrate at 50°C by simple chemical bath deposition technique. The starting materials used for deposition were lead acetate‚ tri-sodium citrate‚ sodium sulphite and elemental selenium
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for her two published collections: The Colossus and Other Poetrys and Ariel. She also wrote a semi-autobiographical novel‚ The Bell Jar in 1963 published shortly before her death. The Bell Jar was based on her own life and personal experiences. The Thin People is one of her best poetry which was written in 1957 and was also known as "The Moon Was a Fat Woman Once". A lot of interpretations were made toward this poetry. Some people argue that this poetry takes on the holocaust issue‚ the victim of
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Top Man and Into Thin Air have several things in common. First‚ both of the stories consisted of big storms and weather issues. The ‘blow fell’ in the story of Top Man‚ Paragraph 1 Attention getting device quote from the story rhetorical question type of saying related to the subject or theme Give an overview State the name of the story and its author Thesis or claim statement Paragraph 2 and 3 Similarities Top Man and Into Thin Air have several things in common. First
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