Date:7.6.2013 Objectives: Part 1: (i)To learn the technique of TLC and the visualization of colourless components. (ii)Identify the unknown drug by a TCL comparison with standard components. Part2 :to learn the separation technique by using TLC plate in separating a mixture of compound by using spinach leaf. Apparatus:UV lamp‚capillary ‚250 ML beaker Materials:aspirin‚acetaminophen‚caffeine‚unknown A‚unknown B‚TLC plates‚ethyl acetate‚Hexane‚acetic acid‚iodine Introduction: Procedure:
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compounds makes it a useful solvent for many chemical processes. The solid was already in powder form therefore we did not have to crush it but it the unknown was in a tablet form‚ one would need to reduce it to a powdery-like form in order to perform this Thin-Layer Chromatography experiment. The powder solution was thoroughly mixed with a glass rod in the test tube containing
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Discussion Using the Thin Layer Chromatography experiment‚ caffeine was found to be the most polar due to the fact that it stayed closer to the stationary phase. Caffeine contains four amine groups that are extremely polar as a result of the hydrogen bond and amide functional group. Acetaminophen was found to be the second most polar analgesic drug tested. Acetaminophen contains a polar alcohol group on one side and amide group on the other but also includes non-polar functional groups that consisted
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References: 1) E. Stahl‚ Thin Layer Chromatography‚ Springer-Verlag‚ New York‚ 1969 2) Camag Scientific‚ Inc.‚ 515 Cornelius Harnett Drive‚ Wilmington‚ NC 28401‚ phone 800-3343909‚ fax 919-343-1834 3) Desaga GmbH‚ P.O. Box 101969‚ D-69009 Heidelberg‚ Germany‚ phone 0-62-21-83590
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A Lesson before Dying‚ one of Ernest J. Gaines later works‚ was written in 1993. Some of his earlier works include A Gathering of Old Men and In My Father’s House. The novel covers a time period when blacks were still treated unfairly and looked down upon. Jefferson‚ a main character‚ has been wrongly accused of a crime and awaits his execution in jail. Grant‚ the story’s main protagonist must find it within himself to help Jefferson see that he is a man‚ which will allow him to walk bravely to his
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COLUMN AND THIN LAYER CHROMATOGRAPHY Group 9 RAMOS‚ Sharina Joy; REYES Aina Marie; REYES Jallisa Maan; RUBIO‚ John Michael; SABINO Patricia Anne; SANTOS‚ Carlos Rafael ABSTRACT To separate the colored components of siling labuyo and to determine the purity of the components‚ the students performed a column and thin or solid-liquid chromatography procedure. The solid may be almost any material that does not dissolve in liquid phase. But for this experiment‚ the solid used by the students was
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Experiment #1: Thin-Layer Chromatographic Analysis of Drug Components | Performed on: Wednesday‚ May 8th‚ 2013 | | | 5/15/2013 | | Introduction: The goal of this experiment was to identify an unknown analgesic drug through the use of thin-layer chromatography. The drugs used were‚ Unknown #1‚ caffeine‚ aspirin‚ and acetaminophen. Thin-Layer Chromatography is a technique for identifying substances using a mobile phase (developing solvent) that draws up through a
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Ionic Conductivity in Yttria-Stabilized Zirconia Thin Films grown by Pulsed Laser Deposition Jetske Karina Stortelder Master of Science Thesis Faculty of Science and Technology Inorganic Materials Science Mesa+ Institute for Nanotechnology Enschede‚ August 2005 Ionic Conductivity in Yttria-Stabilized Zirconia Thin Films grown by Pulsed Laser Deposition Master of Science Thesis by Jetske Karina Stortelder Enschede‚ August 26th 2005 Graduation Committee Prof. Dr. Ing. D.H.A. Blank Dr
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At some point in everyone’s life they come across a life changing obstacle‚ also known as their everest. In the book‚ Into Thin Air by Jon Krakauer‚ the climbers Jon Krakauer‚ Rob Hall‚ sherpas‚ and many other people‚ climb Mount Everest with hopes of summiting. For them this is their everest. When the word everest is said the automatic thought is Mount Everest‚ but in this case everest holds the definition of a tough obstacle that is overcome because of the work and effort that was put into it to
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ascent of the devils thumb that involved spending three weeks on a remote ice cap‚”(Krakauer 27-28). Into Thin Air is a tragic account of one man’s journey up the great summit of Everest. The former climber and now journalist is sent on mission that would change his life. Team members die‚ storms hit‚ oxygen is low‚ will they survive? (About ½ do survive) Jon Krakauer‚ the author of the book Into Thin Air‚ successfully used characterization‚ imagery‚ and conflict to shows the challenge and the determination
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