Title Page Chelsea Maksin Organic Chemistry Laboratory 1 Column and Thin Layer Chromatography: The Separation of Spinach Pigments Russ Hoburg 02/15/2012 Abstract The main goal in doing the column and thin layer chromatography was to separate spinach extract into its components based on polarity and then to analyze the components. The separation of the spinach extract was done using the column chromatography with the wet/slurry packing method. Alumina was inserted into the column to act as
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Thin Film is first generated in the 20th Century. With the rapid development of resource and advance scientific knowledge on preparation‚ structure evolution and the properties of thin film‚ more advance and sophisticated thin film are created by preparation devices and method based on advances in vacuum technology[1]. Thin Film is a second generation of solar cells after silicon solar cells. This smart material reacts to temperature variations‚ electricity or magnetic fields or pressure variation
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Tragedy and The Tragic Hero Into Thin Air A tragedy is a story designed to arouse pity or fear in the audience so that upon hearing it‚ they are cleansed of unsettling emotions which are portrayed in the story. This catharsis is often brought on by hearing of a tragic hero in the story‚ or a person who is heroic‚ but is defeated by an error or frailty. In the book Into Thin Air by Jon Krakauer; the true story of a tragic Mt. Everest expedition‚ the guide Rob Hall was definitely a tragic hero. His
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Micro-extraction of urine and/or stomach contents and analysis by TLC Abstract Thin Layer Chromatography (TLC) is one of the oldest chromatographic techniques used for the identification of compounds and for determination of the presence of trace impurities. The aim of the experiment was to determine two unknown samples (X and Y) by comparing results to the known standard drugs‚ of which there was five‚ using a specific TLC method. The same technique was used for the determination of
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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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Title Identification of Analgesic Compounds Using Thin Layer Chromatography Abstract The objective of laboratory experiment six was to identify an unknown analgesic tablet using Thin Layer Chromatography (TLC) analysis. The procedure involved preparing TLC plates‚ solubilizing standard analgesics (ibuprofen‚ aspirin‚ acetaminophen‚ caffeine) and the unknown in isopropyl alcohol (IPA)‚ and developing the plates in acetone. Rf values were calculated for each compound. The unknown tablet showed an Rf
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1. | Oil production in the United States satisfies only half of the country’s needs; the rest is imported. If imports were cut off‚ what changes would you expect to occur in your lifestyle? | | | 2. | Investigate how geophysicist M. King Hubbert predicted in 1956 that annual U.S. oil production would peak in the early 1970s (the actual peak occurred in 1971). Also‚ investigate the debate over whether the same predictive technique can be applied to world oil supplies. When do you think world
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“Something Borrowed: Should a charge of plagiarism ruin your life?” By Malcolm Gladwell Malcolm Gladwell writes the article‚ “Something Borrowed: Should a charge of plagiarism ruin your life?” That article corresponds to a specific incident of plagiarism between a play writer and a journalist. The play writer is Bryony Lavery and she takes work from Gladwell and specific moments in the psychiatrist‚ Dorothy Lewis’ life. Gladwell‚ begins the article by telling a story about Lewis’ friend who is watching
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From Curvy to Thin Andrea Higgins LIM College What defines the ideal body for a woman? Throughout time‚ a woman’s body has been perceived in so many different ways‚ but today the most popular image for a woman’s body is one that is thin and lacks curves. Many things have influenced this ideal‚ but one of the biggest influences is popular culture. In earlier centuries‚ popular culture’s preference for voluptuous female bodies is depicted in early Western art. Today’s popular culture contributes
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What is interesting in the descriptive story is that Gladwell suggests using other academic sources that talent transformation happened as a result of changed relational models in the professional world. Visionary leaders such as Miller and others foresaw the bargaining power talent had on capital and fostered
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