Thin Layer Chromatography Submitted in partial fulfillment of the requirements for: CHE 324 Organic Chemistry Laboratory Dr. Robert Duncan Fall Semester 2012 Caitlin Inman‚ Team Leader October 9‚ 2012 Tyler Byrd‚ Data Collection Shared Role‚ Technique Expert Introduction: “Chromatography is used to separate components of a mixture. For example‚ imagine a mixture of wood pieces‚ pebbles‚ and large rocks to be separated and the chromatography setup as a stream. Flowing water
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makes it a useful solvent for many chemical processes. The solid was already in powder form therefore we did not have to crush it but it the unknown was in a tablet form‚ one would need to reduce it to a powdery-like form in order to perform this Thin-Layer Chromatography experiment. The powder solution was thoroughly mixed with a glass rod in the test tube containing
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unknown amino acid. Within experimental error‚ the results were consistent with the reference literature cited in this report. Experimental Thin Layer Chromatography The amino acid standards used in this experiment were Alanine‚ Glycine‚ Serine‚ and Histidine. These standards and the unknown were separated by performing a method of chromatography. Thin layer chromatography (TLC) was performed by using a mobile phase and a stationary phase. The mobile phase was a nonpolar solvent composed of ethanol
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Simulating Movement of Tectonic Plates Problem: How do tectonic plates move? What you need: -4 pieces of colored modeling clay -cardboard -newspaper What to do: 1.Flatten two pieces of modeling clay on the newspaper. 2.Cut the center of the clay strips and insert a cardboard on the part of the clay that was cut. 3.Push both ends of the clay strips.Observed what is formed. 4.Repeat step one in the other two pieces of modeling clay. 5.Slowly pull both ends of the clay strips
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streams down every window‚ Layers of Fear ticks the first box in the list of horror clichés straight from the off. That’s not to say this psychedelic first-person horror doesn’t offer anything unique. Starting out in a seemingly empty 19th-century mansion certainly sets an uncomfortable tone‚ and aided by the rambling narrative of an artist who has completely lost his mind - Layers of Fear consistently unsettles you. While it’s forgivable to consider the concept of Layers of Fear as unoriginal‚ it
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through the three different layers of the afterlife by Virgil. Dante is essentially getting a second chance on his life after this journey that is embraced by Dante. These different layers are started off with the Inferno which is the world’s version of Hell. After that‚ it is onto Purgatorio which is the between layer of Hell and Heaven where the souls are on the right track but still have to experience pain and suffering while on their way to the greatness. Then the final layer which is Paradiso and
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Reginald Monroe-@02516632 Summary of OSI layers & Security OSI stands for Open Systems Interconnection and it was developed by the Europeans in the 1980’s. OSI is divided into two major fields‚ an abstract model of networking and a set of defined protocols. The seven layers of the OSI basic reference model are listed and defined below (from bottom to top): 1. The Physical Layer – this layer describes the physical components of the various communications media‚ it also includes the electrical
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The Seven Layer Density Column By Nicia Buttner Grade 8 Table of Contents: Statement of purpose……………………………………. 2 Hypothesis…………………………………………………….. 3 Research……………………………………………………….. 4 Materials………………………………………………………. 5 Procedure……………………………………………………… 6 Observation and results…………………………………. 7 Conclusion…………………………………………………….. 8 Bibliography…………………………………………………... 9 Acknowledgements………………………………………… 10 Page 2 The purpose of this experiment is to compare the different
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Link Layer Our goals: ❒ understand principles behind data link layer services: ❍ ❍ ❍ ❍ ❒ error detection‚ correction sharing a broadcast channel: multiple access link layer addressing reliable data transfer‚ flow control: done! instantiation and implementation of various link layer technologies 5: DataLink Layer 5-1 Link Layer ❒ ❒ ❒ ❒ ❒ 5.1 Introduction and services 5.2 Error detection and correction 5.3Multiple access protocols 5.4 Link-Layer Addressing
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Five-Layer Density Column A density column consists of layers of liquids of different densities which do not mix with each other‚ and which are clearly distinguishable from each other. The highest density material is at the bottom of the column‚ and as you proceed up the column‚ the density of each successive layer decreases‚ with the lowest density layer on top. Three methods for construction of a five-layer density column are discussed in this write-up. All methods use the same five liquids. •
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