GLIRICIDIA SEPIUM LEAF EXTRACT FOR HOGS MANGE INVESTIGATORY PROJECT IN SCIENCE SUBMITTED BY: CRISTEL GELIANNE M. ALOG SUBMITTED TO: MRS. LERMA A. AROSA INTRODUCTION A. Background of the study Gliricidia sepium is a kind of tree common in the community. People use it for fuel unaware of its value as medicinal plant. The idea that gliricidia
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This short story entitled The Last Leaf‚ was written by O. Henry (pseudonym for the American writer William Sydney Porter). It deals with the story of Sue‚ Johnsy and Old Behrman‚ three artists living in a drab district of New York City at the beginning of the twentieth century. One day‚ Johnsy gets sick with Pneumonia and makes it clear she won’t fight death. After the analysis of this short story‚ how can the end be interpreted? The story begins with a description of the area where the
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Instructor: Ma ’am Lioanag Section: Civil Engineering 1-19 Date Performed: July 27 ‚ 2013 Group No.: 3 Date Submitted: August 3 ‚ 2013 Experiment No. 4 : PAPER CHROMATOGRAPHY INTRODUCTION The objective of this experiment was to resolve a given sample into its components by paper chromatography‚ to evaluate the retention factor of each component in the sample and to compare the relative solubility of the various components of a mixture of colors in a given solvent. METHODOLOGY
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Affinity chromatography technique is used to separate proteins found in a mixture of solution. Affinity chromatography uses the strong interaction between a given protein and its corresponding molecule. In today’s lab‚ affinity chromatography was used to purify L-lactate dehydrogenase‚ which contains histidine-tagged protein. The histidine- tagged protein forms a strong interaction with the Ni-NTA column due to the presence of nickel ions. Varying concentration of imidazole was added to the column
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CHEM 2204 Chromatography Lab by wyk.wong » Fri Jul 11‚ 2014 10:25 am Results and Calculations Rf values Rf=(Distance moved by the spot (cm))/(Distance moved by the solvent front (cm)) Toluene: Rf=2 cm/3.8 cm=0.53 (Fluorenone) Rf=1.1 cm/3.8 cm=0.29 (Fluorene) Hexane: Rf=1.8 cm/2.2 cm=0.82 (Fluorene) Rf=0 cm/2.2 cm=0 (Fluorene Table 1: Experimental IR peaks compared to literature IR peaks for fluorenone Functional group Experimental peak (cm-1) Literature peak (cm-1) C-H 3010.5 3013
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understand that because substances have different properties‚ such as mass‚ that can be separated by chromatography. In our experiment‚ we chose 4 different color source to separate in water. We made sure that all the sources were water soluble because only polar substances will dissolve in water. We chose a black wet-erase marker‚ a red marker‚ a green marker‚ and mixed food coloring to test. The chromatography paper was split into 4 sections‚ about 2 cm above the bottom edge and evenly spaced out. Each
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Gas chromatography (GC) is a type of chromatography that uses a carrier gas as the mobile phase and a column as the stationary phase. The sample is injected into the instrument and is heated until the sample‚ which includes both analyte and solvent‚ boils. The analyte must have
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close her eyes because she needs the light in order to continue her drawings. Johnsy agrees‚ but she tells Sue to hurry as she wants to go down like the last leaf. she goes to Mr. Behrman‚ informing him of the gravity of Johnsy’s condition‚ hoping there is something he can do. Sue takes him outside to look at the barren vine with one last leaf. So greatly concerned is Sue about her friend that she effects the change in Johnsy’s psyche that causes her to become well. Sue’s determination to do what she
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Fractional Distillation & Gas Chromatography Exp. 1 Pre-Lab: 1) When two substances whose molecules are very similar from a liquid solution‚ the vapor pressure of the mixture related to vapor pressure of the pure substance. Also it could be defined as a two liquid are ideal solution when they don’t react with each other and they make no association. 2) Are a mixture of at least two different liquid‚ and known also as a mixture of two or more liquid in such away that its component
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for full credit. (5 points) 1. Describe generally what happened to each spot of each type of ink. Which had the most pigments? Answer: The black ink went from a light blue to dark blue then to red. The red ink went from red to pink. It went the furthest out of the inks. The green ink went from dark blue to green and then yellow. Out of the 3 inks‚ the green ink had the most pigments. (5 points) 2. Compare the effectiveness of each of the four kinds of solvents. Answer: Water will move the ink
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