Report ROOM NO: FE E309 EXPERIMENT NO : 8 TITLE : Thin Layer Chromatography of Food Dyes Submitted by Class Partners Instructor : Lyndsay Grover : BIOL 10000 lab. : Awatif Hagelamin : Farag Soliman Date lab performed : February 3‚ 2011 Date of submission : February 10‚ 2011 FENNELL CAMPUS HAMILTON‚ ONTARIO 1/3 Purpose: The purpose of this experiment was to observe the reactions of food dyes with thin layer chromatography paper in order to find the components of an unknown solution
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Introduction Global warming is the term used to describe a gradual increase in the average temperature of the Earth ’s atmosphere and its oceans‚ a change that is believed to be permanently changing the Earth’s climate. Some people do not believe that these are caused by human activities. They think it is all political and falsehood intended to cause panic among humans‚ some call it a hoax. (Dauncy & Patrick‚ 2001). But climate scientists looking at the data and facts agree the planet is
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Chromatography of Commercial Analgesics Using the thin layer chromatography the major components of a commercial analgesic tablet will be indentified and purified. The active ingredients of the analgesic used were characterized by comparison with chromatograms of aspirin‚ acetaminophen‚ ibuprofen‚ mefanemic acid‚ and caffeine through the use of UV chromatography then the Rf value was calculated for each solvent. INTRODUCTION In this experiment‚ thin-layer chromatography (TLC) will be used
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Chromatography of Photosynthetic Pigments Abstract In this experiment a process of chromatography was used to separate chlorophyll a‚ chlorophyll b‚ xanthophyll‚ and beta carotene. When these pigments were obtained they were used to measure the wavelengths by way of spectrophotometer of each and the total of all the pigments wavelength. Introduction Photosynthesis is a process by which plants use the sunlight to convert it from light energy into chemical energy. This equation shows us how
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Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase‚ those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas or
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Size Exclusion Chromatography Size Exclusion Chromatography (SEC) is the separation technique based on the molecular size of the components. Size exclusion chromatography is a kind of method to separate different size of molecules that put in solution. It was first discovered by two scientists who named Grant Henry Lathe and Colin R Ruthven. Both of them received the John Scott Award for this fabulous invention. There are various applications for Size exclusion chromatography such as biochemical
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Component seeks to separate‚ identify‚ quantify and analyze the active component found in Biogesic®‚ which may be useful for public awareness despite its wide acceptance and availability in the market. Furthermore‚ this study applies thin layer chromatography (TLC) technique since it is the simplest‚ cheapest yet most effective approach in terms to the study’s objectives. The TLC method implies Rf (Rate of flow) values where it is given by the distance from origin to center of subtance spot over the
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Nature and Causes of the Wealth of Nations” The excerpt of Adam Smith ’s An Inquiry into the Nature and Causes of the Wealth of Nations states that “The greatest improvement in the productive powers of labor‚ and the greater part of the skill dexterity‚ and judgment with which it is anywhere directed‚ or applied‚ seem to have been the effects of the division of labor” (Smith‚ Book1‚ Chapter 1‚ Of the Division of Labor). The division of labor allows a market‚ state‚ countries and societies to undergo
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able to experimentally analyze and isolate amino acids by separation techniques. One such method of separation is thin layer chromatography (TLC). In this method‚ a silica coated aluminum plate is spotted with the solution being separated‚ and the plate is placed in a developing jar containing a small amount of solvent. With time‚ the solvent
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and Management SAU in Nitra Nitra‚ May 17-18‚ 2006 THE SALES FORECASTING TECHNIQUES MARTINOVIC Jelena‚ (SCG) - DAMNJANOVIC Vesna‚ (SCG) ABSTRACT Many sales managers do not recognize that sales forecasting is their responsibility. In this paper we summarized techniques that manager used into two types: qualitative and quantitative techniques. We also discuss the use of computer software in sales forecasting in Serbia. KEY WORDS sales forecasting‚ quantitative and qualitative techniques INTRODUCTION
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