5.05 Mixtures and solutions Lab report Ink Chromatography Chromatography is also used to compare and describe chemical substances. The chromatographic sequence of sorbed substances is related to their atomic and molecular structures. A change in a chemical substance produced by a chemical or biological reaction often alters the solubility and migration rate. With this knowledge‚ alterations or changes can be detected in the substance. Chromatography serves mainly as a tool for the examination and
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Alkenes from Alcohols: Analysis of a Mixture by Gas Chromatography Aim: To analyze a mixture of alkenes by gas chromatography. Introduction: In this lab‚ we specifically used elimination reaction; however we only used the E1 reaction. In the presence of strong acids‚ alcohols protonate to form a good leaving group‚ namely water. Upon loss of a proton to a good leaving group‚ an introduction of unsaturation (a double bond) can be preformed. According to Wikipedia‚ an E2 reaction is typically
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Food adulteration is the act of intentionally debasing the quality of food offered for sale either by the admixture or substitution of inferior substances or by the removal of some valuable ingredient. Food is declared adulterated if: • a substance is added which depreciates or injuriously affects it • cheaper or inferior substances are substituted wholly or in part • any valuable or necessary constituent has been wholly or in part abstracted • it is an imitation • it is coloured
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Analysis of Essential Oils using Gas Chromatography Lyndon Justin T. Guzman Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City Date Performed: February 2; February 4‚ 2011 Date Submitted: February 18‚ 2011 Abstract The purpose of this experiment is to isolate the essential oil from eucalyptus leaves as a pure compound; moreover‚ the components of the essential oil‚ camphor and limonene‚ will be then separated using gas chromatography technique‚ identify the components by
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adulteration of food. It has engulfed the developing and the underdeveloped countries for the past decade. There are 400 million children in India. Malnutrition‚ diseases like polio and even prejudice continue to threaten their healthy existence. When we see such young children and adults suffering from various diseases due to the adulteration of food‚ we realize that it become a big problem now. Food adulteration can be defined as the intentional debasing of the quality of food offered for sale
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This list only contains the more widely known chemicals and additives in body and food products. There are thousands more in use. Many of the chemicals listed below are suspected or known carcinogens‚ toxins‚ hormone disruptors‚ poisons and contaminates. Acesulfame K Sugar substitute found in pudding‚ chewing gum‚ non-dairy creamers‚ instant coffee mixes‚ tea mixes and gelatin desserts. May increase cancer in humans. Acetone Also known as Dimethylketone‚ 2-Propanone‚ Beta-Ketopropane. Inhalation
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Healthy Food vs Junk Food Diet is almost everything according to nutritionists. The importance of consuming a healthy diet is immensely beneficial for a good and enjoyable lifestyle. As many religions and persisting cultures refer‚ the food that we eat should be in the desired quality in terms of nutrition as well as taste. However‚ the world today is facing a serious problem regarding junk food or unhealthy food. Many health-related problems have a common origin‚ that is junk food. Therefore‚
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Fresh Food and Canned Food Eating is most important activity in our life. Some people eat 2 times‚ 4 times‚ or some people in poor countries eat only 1 time a day. We live in a world where the variety of food is immense‚ and we are responsible for what we eat. We decide what we are about to eat and how it will affect our bodies. The three main differences between fresh food and canned food are flavor‚ health benefits‚ and cost. The most notable difference between these two kinds of foods is their
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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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Full Report on Exercise 4.2 ESTIMATION OF PROTEIN CONCENTRATION BY SPECTROPHOTOMETRY And Exercise 4.3 GEL FILTRATION CHROMATOGRAPHY Joel Don M. Untalan CHEM 160.1 – 1L AY 2013 – 2014 Groupmates: Sonette Yao Kristopher Quilan Laboratory Instructor Carmelo C. Briones I. Introduction Analyzing proteins in determination of protein concentration by spectrophotometry is important. It determines to what concentration of a certain protein is in a crude sample. In this technique‚ a wide
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