Column and Thin Layer Chromatography Beverly Abstract: Plant pigments were separated and concentrated from a crude spinach extract through the use of column chromatography and an eluatropic series of hexanes‚ hexane/acetone‚ and methanol. The pigments were analyzed using thin layer chromatography with a 30% ethyl acetate/hexane developing solvent. Introduction: Chromatography is a technique used to separate a mixture of two or more components based on
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Post Lab #4- Column Chromatography Organic Chem 3418-2 March 3‚ 2011 Theoretical Background- The fluorene and fluorenone mixture was separated by first dissolving the mixture in heptane. Since “like dissolves like”‚ fluorene dissolves with the non-polar heptane and the polar fluorenone dissolves in the polar ethyl acetate solvent. This phenomenon was illustrated in class before the experiment‚ when it was pointed out why water will not dissolve fluorene‚ fluorenone‚ or transstilbene
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[pic] Functions of Stock Exchange - Main Functions In The Market Post : Gaurav Akrani Date : 11/01/2010 12:00:00 PM IST Comments (2) Labels : Economics 1 [pic] 1. Continuous and ready market for securities Stock exchange provides a ready and continuous market for purchase and sale of securities. It provides ready outlet for buying and selling of securities. Stock exchange also acts as an outlet/counter for the sale of listed securities. [pic] 2 [pic] 2. Facilitates
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RADICAL HALOGENATION AND GAS CHROMATOGRAPHY Abstract In radical halogenations lab 1-chlorobutane and 5% sodium hypochlorite solution was mixed in a vial and put through tests to give a product that can then be analyzed using gas chromatography. This experiment was performed to show how a radical hydrogenation reaction works with alkanes. Four isomers were attained and then relative reactivity rate was calculated. 1‚1-dichlorobutane had 2.5% per Hydrogen; 1‚2-dichlorobutane had 10%; 1‚3-dichlorobutane
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The Columbian Exchange was the importing and exporting of animals‚ plants‚ and diseases between the new world and the old world. Explorers from Eurasia were bringing their animals‚ plants‚ and diseases over to the new world as well as returning home with new items. There’s no doubt that the Columbian Exchange changed the world. Although more things were brought to the new world‚ I think the people from the old world benefitted the most. Many of the plants from the new world became stable crops when
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A Study on COMMODITIES MARKET in india in partial fulfillment for the award of the degree of Master of Business Administration By Bethi Navatha Kumari in [pic] school of management studies Jawaharlal nehru Technological university Kukatpally‚ hyderabad June 2009 Acknowledgement Apart from the efforts of me‚ the success of this project depends largely on the encouragement and guidelines of many others. I take this opportunity to express my gratitude to the people who
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Commodity Market Different Types of Commodity Traded Turnover of Indian Commodity Exchange Market Share of Commodity Exchanges in India Different Segments in Commodities Market Leading Commodity Markets of World Regulators Leading Commodity Markets of India Volumes in commodity Derivatives Worldwide Commodity Futures Trading in India Introduction Benefits to Industry From Futures Trading Benefits to Exchange Member Why Commodity Futures? What makes commodity trading attractive? NCDEXs Trading
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The Purity and Purification of Solids Melting Points CH-337 Abstract: The purpose of this experiment was to find the eutectic point for the mixture of naphthalene and biphenyl. This was done by measuring the melting point of both pure substances and five mixtures of different ratios. The purpose of the second section was to identify an unknown sample by measuring its melting point and mixing it with two known substances and comparing them. The results suggest that the eutectic point is closest
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Layla Taha Columbian Exchange DBQ Essay The Columbian Exchange was a sea trade connecting the “Old World” and the “New World” while transferring peoples‚ animals‚ plants‚ and diseases in the 15th century. This transfer of trade products also provoked the Age of Exploration‚ including Christopher Columbus’s discover of the Western Hemisphere in 1492. Many European explorers discovered new land in this region and saw many prosperous civilizations. Despite having flourishing civilizations
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Imagine everything you know about America today. Think of the foods‚ the animals‚ the annoying sickness we all get come wintertime - and then imagine knowing that most of those things were not supposed to be on this land. Because of The Columbian Exchange‚ America and Europe were able to transfer good‚ and bad‚ commonalities amongst each other‚ and the end result was both unifying‚ and catastrophic. Most people would be surprised to learn that the “classic American hamburger” is not exactly‚ “American
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