Expt. 8.1 Thin Layer Chromatography (TLC) Analysis of Analgesics Krista Jinks CH 211L Section F 10/27/14 I. Abstract: The objective of this experiment was to analyze analgesic tablets by TLC to determine what analgesics they contain. The analgesics that could be in the tablets included ibuprofen‚ acetaminophen‚ aspirin‚ and caffeine. Through the use of TLC‚ unknown substance #62 was found to be Bayer Aspirin because it only contained aspirin. II. Introduction: 1. Briefly describe
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Maple Leaf Shoes Ltd. Case Study 13 – Safety at the Workplace Submitted by November – 9/2010 Submitted to Central Problem The central Problem is that the Snack Bar’s employee‚ Sam Johnson‚ is infected with the AIDS virus‚ because of that his co-worker‚ Catherine Reading‚ does not want to work with him. Background Maple Leaf Shoes Ltd. Is a medium sized manufacturer of leather and vinyl shoes with its main manufacturing facility and head office in Wilmington Ontario
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I am just a leaf‚ hanging high in the tree‚ I pretend that I am something that lives on the ground‚ I feel a touch of branches throughout‚ I touch a flower that grows close to me‚ I worry about me growing fast‚ I cry when I see the stars falling from the sky‚ I am just a leaf‚ hanging high in the tree‚ I understand moments in time‚ I say tomorrow is another day‚ I dream about stars deep in sky‚ I try to do my best in every way‚ I hope my dreams come true‚ even though I am just a leaf‚ hanging high
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Separating Water Soluble and Acetone Soluble Inks through Chromatography Abstract: Chromatography is a term used to define a set of laboratory techniques for the separation of mixtures. Through Chromatography we analyzed complex mixtures. In our recent lab we analyzed complex mixtures. The purpose of this lab was to find whether the water soluble or acetone soluble liquid traveled farther. In our recent lab we measured the distance traveled by the different colored water and acetone soluble
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In these stories‚ “The Last Leaf” by O. Henry‚ “The Washwoman” by Isaac Singer‚ and “Gwilan’s Harp” by Ursula K. LeGuin‚ the main characters experience great loss. These three stories contain a similar theme which one of the character in the story had a tragic experience. Johnsy from the Last Leaf had lost her hope in life but was stimulate by her best friend‚ Sue. The old washwoman from “The Washwoman” had lost her only son. And‚ Gwilan from “Gwilan’s harp” had lost her husband‚ Torm in an accident
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Introduction Flash-Column Chromatography is another useful technique used to separate and purify complex mixtures of compounds. In this experiment‚ TLC is used to determine the best solvent system for the column. Due to Flash-Column Chromatography1 being an inexpensive technique‚ many scientist use this process for drug and natural product purification. Method By using the information from Experiment 6B‚ the TLC solvent system used was 30% EtOAc: 70% Hex. Experiment 7 was broken into two parts‚
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Resolution of Matter into Pure Substances – Paper Chromatography Abstract The purpose of this laboratory was to determine how different substances have different solubilities in a given solvent. This was accomplished using the method of chromatography. The solubility of each substance was first determined by dropping a drop or two of each on a line drawn 2 inches above the bottom of a piece of paper. Then the paper was lightly bent in order to tape both sides of the paper leaving about a 4 centimeter
Free Solubility Chemical substance Sodium chloride
his home state of Virginia. He expresses his willingness to take up arms to defend his state. The letter illustrates Lee’s dignity‚ loyalty‚ and bravery. The Last Leaf by Oliver Wendell Holmes The last leaf is about an old man that already lose his friends \’cause their time had already came and that man was left like the last leaf on the tree.And Oliver Wendell Holmes compares himself to that man.If he will be like him‚he want to see the other smiling than to be alone and left behind. This poem
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by Laboratory Reagents‚ Legacy Product Code: S/0380/48‚ CAS Number:8047-15-2) were powdered and analyzed as potassium bromide (KBr) pellets using FTIR (Model-JASCO FT/IR 4100 LE‚ made in Japan; Range: 4000-400 cm-1) Prabhu et al. (2013). Gas Chromatography–Mass Spectrometry (GC–MS) analysis: Acid hydrolysis of saponin was carried out according to the method described by Metwally et al. (2012) with some modification. Saponin was hydrolyzed with 2 N HCL (6 hr at 100 o C) under reflux‚ the residue
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Inheritance System of anthocyanin pigments in Brassica rapa. Introduction The observations of Brassica rapa in class revealed a variation in color. Brassica rapa‚ also called fast plants‚ was studied because as their name suggests‚ they are able to complete a lifecycle in a short period of time. (www.fastplants.org) The color variations we observed among the plants were that some had green stalks while others were purple. The pigment which gives plants their color is called anthocyanin. (www.carnivorousplants
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