Lab #1 Extraction and Thin Layer Chromatography Kaya Gaudet 6784928 January 9‚ 2013 Line Structure References BenzophenoneBiphenylBenzoic Acid Extraction: A process used to separate different compounds in a mixture based on their solubility in an immiscible substance. Usually an aqueous and organic phase are used. During extraction the desired compound moves one phase and leaves the unwanted substance behind. Extraction normally has to be done a few times to leave all of the impurities
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Column and Thin Layer Chromatography: The Separation of Spinach Pigment Abstract Spinach extract was separated into fractions containing compounds of similar polarity by column chromatography. Based on solid-liquid phase partitioning‚ this separation technique exploited the different polarity of the compounds in the spinach extract. Three fractions with different colors were obtained. The extract and its fractions were analyzed using thin layer chromatography (TLC). The TLC results showed that
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Drugs screen using Thin Layer Chromatography of basic illicit drugs Abstract The majority of evidence submitted to crime labs comes from drug-related crimes. Often‚ this evidence includes unidentified powders that may be illegal drugs. In order to prosecute individuals for possession of illegal substances‚ it is necessary for forensic scientists to positively identify any suspected drugs submitted to the laboratory. In addition‚ forensic toxicologists must determine the identity
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Experiment 3: The preparation of acetaminophen (paracetamol) with thin layer chromatography (TLC) to monitor the reaction. Abstract: This experiment is to demonstrate the preparation of paracetamol and its properties. Reflux and filtration of 4-aminophenol and acetic anhydride formed the crude sample. Further analysis of dry white crystals were used to give quantitative measurements and a percentage yield of 46% was obtained. The overall conclusion is that the acetic anhydride reacted with the
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Thin Layer and Column Chromatography of Extracted Total Lipids of Chicken Egg Yolk Aegan Matthew V. Amican‚ Karen Gem B. Ares‚ Ruvie Ann A. Ballester‚ Mark Joseph S. Barcelona‚* Katherine Carmen Isabel G. Calleja‚ Christelle Venus F. Capuno‚ Group 1‚ 2DPH‚ University of Santo Tomas Abstract Lipids are one of the major constituents of foods‚ and are important in our diet for a number of reasons. They are a major source of energy and provide essential lipid nutrients. This experiment determined
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In the documentary‚ Dying to be Thin‚ dancers and regular people are asked about the pressure to be thin. This video has taught me that in our society being extremely skinny is considered beautiful. Not everyone is meant to be a size 2. It all depends on what your body type is. Everyone is beautiful no matter what size they wear. The word beautiful does not require the word skinny. Beauty is in the eye of the beholder. If you don’t see yourself as beautiful your confidence is very low.
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Thin Is there a point where someone is to thin? Today there is no such thing as to thin. Many places represent the super thin look and it is part of the requirement to be a model‚ however there are many types of modeling agencies in America; every agency includes one or more types of modeling. The goals of models in America leave unhealthy images imprinted in the minds of children in today’s society. It is much more than a job‚ it is a way of life which consists of nothing but working harder
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Into Thin Air by Jon Krakauer Everest deals with trespassers harshly: the dead vanish beneath the snows. While the living struggle to explain what happened. And why. A survivor of the mountain’s worst disaster examines the business of Mount Everest and the steep price of ambition. Into Thin Air Straddling the top of the world‚ one foot in Tibet and the other in Nepal‚ I cleared the ice from my oxygen mask‚ hunched a shoulder against the wind‚ and stared absently at the vast sweep of earth below
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Summary The thin-ideal in advertisements has been a topic of wide debate for decades‚ specifically concerning its ethicality. As seen in various types of media‚ the “thin-ideal” occurs when a very thin model is featured as its lead‚ thus promoting the concept that thin is desirable to be. The thin-ideal has been a controversial topic in advertising and other forms of media due to the potentially harmful effects that it can cause to women who have been exposed to it. Issues such as body dysmorphia
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Dying To Be Thin: Anorexia Nervosa The individual may not recognize that her weight loss or not eating at all is a problem. Anorexics may be afraid of losing control over the amount of food they eat; thus‚ they want to control their emotions‚ and reactions to their emotions. Stacy was a beautiful 16-year-old girl. At that age everyone adored her: her friends‚ her teachers‚ her parents‚ etc. She was on the honor roll in school. She was very athletic‚ being on the track team‚ soccer team‚ and the
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