Gas chromatography Essays & Research Papers

Best Gas chromatography Essays

  • Gas Chromatography - 1426 Words
    Gas Chromatography Purpose: The purpose of the gas chromatography lab is to find out how different substances interact with the surface of a solid. Chromatography is a separation technique that depends on the relative distribution of the components of a mixture between a mobile phase and a solid stationary phase. Chromatography measures the tendency of a substance to interact with the surface of a solid or to remain in a mobile phase. When doing a chromatography lab the mobile phase has...
    1,426 Words | 5 Pages
  • Gas Chromatography - 707 Words
    GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1) to learn the general theoretical aspects of gas chromatography as a separation method, 2) to learn how to operate gas chromatographs specific to COD, 3) to become familiar with using the gas chromatograph (GC) to qualitatively identify components of mixtures, 4) to be introduced to and to interpret the quantitative data available via gas chromatography, 5) to gain insight into how the GC technique is...
    707 Words | 3 Pages
  • Gas Chromatography - 826 Words
    Neha Bhattacharjee 5/23/11 Upamanyu Basu Gas Chromatography Part 1: General Questions 1. Gas chromatography is a type of chromatography that allows for separation and analysis of a compound. It does this by vaporizing the sample then using a carrier gas to push it through a column which then separates it based on an equilibrium formed between solution and dissolution. 2. As a gaseous mixture travels down the column parts of the sample dissolve...
    826 Words | 4 Pages
  • Gas Chromatography - 513 Words
    group 2Gas Chromotography Mass SpectrumLab ManualNOrth Carolina A&T State University chemistry DepartmentPatrick Mills Erin Barnes | | | | | | | January 24, 2013 Introduction: Chromatography is the separation of components of a mixture by differential adsorption between a stationary phase and a mobile phase.1 GC separates molecules as it moves through the column. There are two different column types that are used in gas chromatography, packed and capillary.3 The...
    513 Words | 3 Pages
  • All Gas chromatography Essays

  • Gas Chromatography Report - 1653 Words
     Gas Chromatography/Mass Spectrometry Susan Brown Keiser University Introduction GC/MS Gas Chromatography and Mass Spectrometry combines the identification power of gas chromatography with the quantitative analysis of mass spectrometry. Gas chromatography is a widely used laboratory technique that allows you identify specific parts of a mixture of substances. Mass spectrometry helps determine the molecular weight and components of the individual compounds. Where...
    1,653 Words | 5 Pages
  • Optimization of Gas Chromatography - 1539 Words
     CHM 510 LABORATORY REPORT Experiment 1: Gas Chromatography (GC): Optimization of Flow Rate and Column Temperature Name: AFIQ B. ANWAR Student No.: 2012621072 (AS2253A) Date of experiment: Date of report submission: Lecturer’s Name: PN. HALIZA Gas Chromatography (GC): Optimization of Flow Rate and Column Temperature INTRODUCTION The main purpose of the experiment is to investigate the effects of column temperature and flow rate on the separation of methyl...
    1,539 Words | 11 Pages
  • Gas Chromatography Lab Report
    Gas Chromatography Analysis of Product Mixtures Gas Chromatography Guidelines, Handout. Introduction Gas chromatography is a technique used to analyze chemical compounds that can be vaporized and separated in a gas phase column. Once separated, the analyzed substance is passed through a detector and data is obtained. The samples that we are going to analyze are: the EtOAc from Simple distillation, the Fraction 1, Fraction 2, and Fraction 3 from the Fractional Distillation. Experimental...
    635 Words | 2 Pages
  • Chromatography - 615 Words
    Chromatography: The colours separate and move up the paper at different rates Chromatography can be used to separate mixtures of coloured compounds. Mixtures that are suitable for separation by chromatography include inks, dyes and colouring agents in food. Simple chromatography is carried out on paper. A spot of the mixture is placed near the bottom of a piece of chromatography paper and the paper is then placed upright in a suitable solvent, eg water. As the solvent soaks up the paper, it...
    615 Words | 3 Pages
  • Dehydration of an Alcohol: Distillation and Gas Chromatography
    Experiment 2: Dehydration of an Alcohol: Distillation and Gas Chromatography Preparation of Methylcyclohexenes Purpose: The basic purpose of this experiment is to carry out the dehydration of an alcohol and isolate the reaction products by distillation. Gas Chromatography will be utilized to analyze the reaction mixture. Table of Reagents: Compound (g) Molecular Weight (g/mol) Grams (g) Moles 6 mL of 2-methylcyclohexanol (C7H14O) 114.19 g/mol 6 mL x 0.943g = 5.66 g 1 mL 5.66 g...
    896 Words | 4 Pages
  • Chromatography - 684 Words
    Direction: Read the article below. Answer the questions beside the article by checking the number of the sentence where you can find the answer. Then, write the specific answer on the space provided for. Good luck!!! CHROMATOGRAPHY (By: Mayflor Markusic) KALIKASAN: Everyday Science in Action Volume 4 No. 1; pages 22-24 a) What is chromatography? 1 2 3 4 ____________________________________________________________ ________________ b) Give examples of...
    684 Words | 4 Pages
  • Chromatography - 969 Words
    Paper chromatography is one of the easiest methods of chromatography. It is a method of planar chromatography (stationary phase is in form of a plane). Paper chromatography follows the basic principle of chromatography, which states that substances or components are distributed in between the stationary phase and the mobile phase. It is an analytical technique, where only a small amount of a sample is used for separating and identifying its components. Like any other method of chromatography,...
    969 Words | 3 Pages
  • Isolation and Analysis of Essential Oils Using Gas Chromatography
    Isolation and 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,...
    3,527 Words | 14 Pages
  • Drug Identification with Gas Chromatography Mass Spectrometry
    Drugs are used everyday by people in many different ways for many different reasons. Drug testing has become a standard in pre-employment testing, because of the wide variety of drug use in today's society. Drugs tested for by a possible employer include Cocaine (crack), Amphetamines (crystal), Opiates (codeine, morphine, heroin), PCP (phencyclidine), and Marijuana. Gas chromatography/mass spectrometry is used to test hair and urine samples of possible drug abusers or job applicants, and it is...
    788 Words | 2 Pages
  • Alkenes from Alcohols: Analysis of a Mixture by Gas Chromatography
    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...
    774 Words | 3 Pages
  • Paper Chromatography - 525 Words
    A solution of the mixture to be separated is "spotted", usually from a micropipet, near one edge of a piece of filter paper, and the solvent is evaporated. Usually several sample and standard spots are placed along the edge. Then the chromatogram is "developed" by immersing that edge of the paper in a solvent that migrates through the paper as the mobile phase. The solvent often has two, three or four components, one of which is usually water. Development is normally done in a chamber that is...
    525 Words | 2 Pages
  • Chromatography of Dyes - 492 Words
    ABSTRACT Separation and identification of components of a mixture was determined by using Chromatography. The components of a mixture have different affinities for a stationary phase as well as different affinities for a mobile phase. INTRODUCTION An extremely common technique by using two chemicals and filter paper can give you sufficient information. A well-done Chromatography of dyes will provide you with enough data to determine if a liquid mixture is heterogeneous or homogenous . In a...
    492 Words | 2 Pages
  • Candy Chromatography - 605 Words
    Chromatography is a physical method of separation in which the components to be separated are distributed between two phases, one of which is stationary (stationary phase) while the other (the mobile phase) moves in a definite direction. It separates the analyte to be measured from other molecules in the mixture and allows it to be isolated. Chromatography may be preparative or analytical. Preparative chromatography seeks to separate the components of a mixture for further use (and is thus a...
    605 Words | 2 Pages
  • Column Chromatography - 1689 Words
    Column Chromatography of Plant Pigments Paul Ibarbia, Gene Paolo Jasmin, Gianpaolo Jimenez and Lorenzo Labicane* Department of Biology, University of Santo Tomas, Manila, Philippines Abstract Column chromatography of plant pigments is the separation of plant pigments extracted from Capsicum frutescens (siling labuyo). No slurry is prepared of the eluent; eluent with the stationary phase is set and then carefully poured into the column. The eluent are the solvents which are responsible for...
    1,689 Words | 5 Pages
  • Column Chromatography - 1301 Words
    Column Chromatography of Plant Pigments Jaybee Balilea, Sharmaine Baysic, Maria Anjelette Patricia Belen 3Bio-7, Department of Biological Sciences, University of Santo Tomas, Manila, Philippines Abstract Column Chromatography is a form of solid-liquid adsorption chromatography and depends on the essential principles as does in thin layer chromatography. It was used in this experiment in separating and analyzing the different components of Capsicum frutescens (siling labuyo) with the use...
    1,301 Words | 5 Pages
  • Liquid Chromatography 2 - 2701 Words
    FLinn SCIEnTIFIC Inc. "Your Safer Source for Science Supplies" p.o. Box 219 • Batavia, Illinois 60510 • 1-800-452-1261 • • Visit our website at: Liquid Chromatography AP Chemistry Laboratory # 18 Publication No. 10535A Catalog No. AP9093 Introduction In this experiment, liquid chromatography is used to separate the substances that are present in grape-flavored Kool-Aid®. First, the dyes responsible for the purple color, FD&C Blue #1 and Red #40 are...
    2,701 Words | 17 Pages
  • Liquid Chromatography Lab - 1733 Words
    Liquid Chromatography – Laboratory #18 Introduction: We are using liquid chromatography to separate the colored substances in grape-flavored drinks. We separate the component dyes, and then we separate the flavorings and citric acids. Background: Chromatography is a process that is used to separate a substance into its component parts. The separation occurs between the stationary and moving phase of the lab. The moving phase consists of a fluid and the stationary phase consists of a...
    1,733 Words | 7 Pages
  • Chromatography for Protein Purification - 825 Words
    Department of Chemical & Biomolecular Engineering THE NATIONAL UNIVERSITY of SINGAPORE Chemical Engineering Process Laboratory II Experiment B2 Chromatography for Protein Purification Name Matric No. Group : : : Date of Expt. : GRADE : A. Learning objectives 1. 2. 3. 4. Establish chromatographic assay to determine protein concentrations in a mixture. Appreciate the importance of resolution in protein chromatography. Understand the tension between purity and yield in protein...
    825 Words | 4 Pages
  • Chem Lab Chromatography - 558 Words
    Gabriel Alizaidy Liquid Chromatography September 14, 2009 Objective: To separate the components of unsweetened, grape flavored Kool-Aid. Procedure: Using two syringes, inject different concentrations of alcohol to extract red and blue dyes, and artificial flavoring. Data: Conclusion: Different dyes are shown when separated by different concentrations of isopropyl alcohol. Discussion of Theory: Chromatography, resolution and selectivity played major roles in making the experiment...
    558 Words | 3 Pages
  • Chromatography Instrumentation Market worth $7,609.3 Million by 2018
    The “Chromatography Instrumentation Market by Systems [LC (HPLC, UHPLC, FLASH), GC, TLC, SFC, Others (Autosamplers, Detectors, Fraction collectors)], By Consumables (Reverse phase columns, Syringe filters, Vials) & Industry - Global Forecast to 2018",analyzes and studies the major market drivers, restraints, opportunities, and challenges in North America, Europe, Asia, and Rest of the World. Browse 123 market data tables and 49 figures spread through 407 pages and in-depth TOC on...
    526 Words | 2 Pages
    EXPERIMENT VIII HIGH PERFORMANCE LIQUID CHROMATOGRAPHY SEPARATION AND ANALYSIS OF MIXTURES INTRODUCTION Increasingly, the determination of low concentrations of active ingredients (either desired or undesired) in complex mixtures, sold for human consumption, has become more necessary. Federal regulations have imposed strict limits on the type and concentrations of a host of substances sold as foods or drugs. Such requirements demand analytical techniques that are fast and reliable...
    1,196 Words | 5 Pages
  • Lab report on gas chromatograph and the optical activity of carvones.
    Optical Activity of Carvones Kyle Peterson Chem. 243a Matt Judd, Sec. 25 Date Performed: 10/29/03 Abstract: The objective of this experiment is to use Gas Chromatography to distinguish between two enantiomers of carvone from caraway oil and spearment oil and to find the 2 carvone's optical activity as well as percent carvone in spearment and caraway oil. It was found that S-carvone had an optical activity of 0.0047 and R-carvone had an optical activity of 0.516 and that spearment oil is 59%...
    668 Words | 4 Pages
  • Usp Residual Solvents Analytical Method
    Residual solvents Identification and control of the residual solvents (USP 32(467), page 181 Determination by gas chromatography with mass detector and headspace sampler Conditions of the chromatograph Agilent 7890A (LCTG CGMS): * Column DB-624 30m 0.25 mm 1.4µ (CG-2) * Injector temperatura: 160ºC * Flux: 1.0 ml/min * Split: 5:1 * Carrier gas: Helium * Time per test: 30.6 min Conditions of the detector 5975C inert MSD * Data adquisition mode: Scan/SIM *...
    501 Words | 2 Pages
  • spme - 2572 Words
    EXPERIMENT 4 ANALYSIS OF HYDROCARBON IN COMMON FUELS BY SOLID-PHASE MICROEXTRACTION (SPME) AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY (GC-MS) Abstract In the analysis the solid-phase microextraction (SPME) and capillary gas chromatography/mass spectrometry (GC/MS) was developed for the identification of volatile compounds (hydrocarbon) in fuel. The samples was used is (kerosene, diesel, thinner and petrol) and one unknown. After the analyte was extracted by SPME in 20min, it directly...
    2,572 Words | 16 Pages
  • Analysis of Mouthwash - 537 Words
    ANALYSIS OF MOUTHWASH Background Information: Commercial mouthwashes are mixtures of water, alcohol, dyes, flavorings, and other compounds. In this experiment, you will use gas chromatography to determine the alcohol content of the mouthwash. Since the volumes of alcohol and water are not additive when mixed, a calibration curve must be used. It will provide the correction factor needed for alcohol-water mixtures. The calibration curve will be prepared by placing a known amount of...
    537 Words | 3 Pages
  • Lab 1 Carbohydrates Bch2333
    Lab BCH 2333 Section: Lab 1 Carbohydrates: Separation Techniques Based on Molecular Size TA: Wednesday, January 16th, 2013 Team #4 By: Partner: Purpose The purpose of this experiment is to exemplify how differences in molecular weight allow separation of polymers from their monomers. Methods of dialysis and gel filtration chromatography will be used to separate a glucose monomer from a starch polymer....
    1,380 Words | 7 Pages
  • school - 302 Words
    he v-shaped pattern often occurs in the area where a fire originated, so it is possible that the space heater was the fire of origin (tests needs to be run to confirm). The crazed glass (by lab results) indicated that crazing is the result of rapid cooling of hot glass by the application of water. The protected surface shows there was an object on the floor protecting the area, What physical evidence did you find at the victim’s home? Describe the process that you used to take a sample of the...
    302 Words | 1 Page
  • Analysis of Ethanol in Moonshine - 807 Words
    Analysis of Ethanol in Moonshine | Using the GC-MS | Jennifer Greene | ------------------------------------------------- 4 May 2012 ------------------------------------------------- 4 May 2012 Introduction: In this experiment gas chromatography is applied to separate the water-ethanol mixture. This method is often used in the determination of alcohol in blood or urine. One obvious application is when law enforcement agencies need to determine whether or not someone is...
    807 Words | 3 Pages
  • Forensic Science Lab Questions
    1. What physical evidence did you find at the victim’s home? A box of matches, a space heater, beer bottles, Natalie’s wallet, a V-shaped burn pattern, burned outlet, a protected surface on the ground, crazed glass, and a puddle-shaped burn pattern. 2. Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? First, I took the chisel to loosen up some of the wood...
    938 Words | 3 Pages
  • lkoioinoinoin - 449 Words
    1. What physical evidence did you find at the victim’s home? I found a wallet, possible flammable liquid, beer bottles. 2. Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? I scraped up the material from the puddle-shaped burn, and then used tweezers to store it. I took samples from the portion of the floor that wasn’t burned to compare it to the puddle-shaped...
    449 Words | 2 Pages
  • Determination of Residual Solvents by Analytical Methods
    MCOPS, Manipal ANALYTICAL METHODS FOR RESIDUAL SOLVENTS INTRODUCTION: Organic solvents are routinely applied during synthesis of drug substances, excipients, or during drug product formulation. They are not desirable in the final product, mainly because of their toxicity, their influence on the quality of crystals of the drug substance and their odor or taste, which can be unpleasant for patients. To remove them, various manufacturing processes or techniques (usually...
    5,198 Words | 15 Pages
  • Forensic Science - 511 Words
    Module Eight: Lab Questions Your lab link can be found at Case 4: The Bitter Pill. 1. What physical evidence did you find at the victim’s home? I found a box of matches, alcohol, space heater, a wallet, 2. Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? I took a chippel and chipped some of the wood off the floor and picked up the chippings with tweezers and...
    511 Words | 2 Pages
  • forensics - 449 Words
    8.07 What physical evidence did you find at the victim’s home? A box of matches, a space heater, beer bottles, Natalie’s wallet, a V-shaped burn pattern, burned outlet, a protected surface on the ground, crazed glass, and a puddle-shaped burn pattern. Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? First thing i did was I took the chisel to loosen up some of the...
    449 Words | 2 Pages
  • Module 8 lab - 395 Words
    1. What physical evidence did you find at the victim’s home? Matches, Natalie’s ID, burned floor, and space heater. 2. Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? I used a chisel to scrape up some wood and then used tweezers to pick it up and put it in an airtight container. I would take samples from none burned wood to compare the results in testing. 3....
    395 Words | 1 Page
  • presentation industry training - 3077 Words
    3,077 Words | 24 Pages
  • Experiment 3B Fractional Semi-microscale Distillation Separation of Hexane and Toluene
    Chem 2203 Sec 026 27/September/2013 Experiment 3B: Fractional Semi-microscale Distillation Separation of Hexane and Toluene. Objective: The main goal of this lab is to learn how separation of binary liquid mixtures is performed. Especially when the two liquids have boiling points varying by about 30° C. Hexane can be separated from toluene in this experiment because of the difference in their boiling points. Since toluene has a higher boiling point, it will left at the bottom while the...
    1,041 Words | 5 Pages
  • Analytical Technique - 1656 Words
    Analytical techniques Introduction * The analysis technique chosen is gas chromatography, I'm going to talk about it and I am elected chromatography studies to identify and quantify known materials do. * The principles of gas chromatography * The functions of gas chromatography * Theories of instruments and techniques etc. PRINCIPLES Gas chromatography (GC) was first demonstrated for analysis of liquid in the classic paper by james and martin (1952). It was quickly...
    1,656 Words | 6 Pages
  • Lab report on E2 substitution on alkyl halides.
    Alkenes by Elimination Kyle Peterson Chem. 243a Matt Judd, Sec. 25 Date Performed: 11/12/03 Abstract: The objective of this experiment is to successfully perform a dehydration of a 2-butanol and a dehydrohalogenation of 2-bromobutane to form the products 1-butene, trans-2-butene, and cis-2-butene. It was found that a dehydration of 2-butanol yielded 4.6% 1-butene, 67.3% trans-2-butene, and 28.1% cis-2-butene, and a dehydrohalogenation of 2-bromobutane yielded 19.1% 1-butene, 69.9%...
    836 Words | 6 Pages
  • Chemistry - 1671 Words
    Gas Chromatography (GC) Definition: Gas chromatography is a physical method of separation in which the components to be separated are distributed between two phases, one being a stationary bed of large surface area, and the other a gas that percolates through the stationary bed. When the stationary phase is a solid, the separation process is more precisely called gas-solid chromatography. Introduction: Gas Chromatography is a technique widely used to separate complex mixtures of substances....
    1,671 Words | 6 Pages
  • Thesis of Geno - 10561 Words
    GENOTOXIC IMPURITY ANALYSIS IN PHARMACEUTICALS by Matthew Austin Janson A Thesis Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (PHARMACEUTICAL SCIENCE) December 2009 Copyright 2009 Matthew Austin Janson Acknowledgements The following individuals are being acknowledged for their contributions in this thesis: Dr. Wei-Chiang Shen for his role as committee head and...
    10,561 Words | 41 Pages
  • Intersciencebv Case Analysis - 2606 Words
    INTERSCIENCE, B.V.: SEEKING A NEW MARKET FOR GAS CHROMATOGRAPH| B2B Marketing - Case Analysis | Submited To: Prof. S. Garimella Dated: 18th July 2010 Submitted by: Aditi Sharma Amandeep Singh Ashwini Sinha Divay Makkad Prashant Akhawat IMI | INTERSCIENCE, B.V.: SEEKING A NEW MARKET FOR GAS CHROMATOGRAPH | Contents 1. Introduction 3 2. Markets for gas chromatograph 3 3. Players in the contract laboratory market and the price war 4 4. Business Model of...
    2,606 Words | 9 Pages
  • Forensic Science Notes - 1423 Words
    Fos 108 review Math refresher 1. Qualitative = IDENTITY of a material, Quantitative = PERCENT COMBINATION, order of operations PEMDAS, 2. Units of length: meters (m) a. millimeters (mm): 1mm = 1-3m = 1/1000 m b. centimeters (cm): 1cm = 1-2m = 1/100 m c. kilometers (km): 1km = 13m = 1000m 3. Units of mass/weight: grams (g) a. milligrams (mg): 1mg = 1-3g = 1/1000 g b. kilograms (kg): 1kg = 13g = 1000g 4. Units of volume: liters (L) a. milliliters (mL): 1mL = 1-3L = 1/1000 L Percent...
    1,423 Words | 5 Pages
  • Nucleophilic Substitution: Synthesis of N-Butyl Bromide and T-Pentyl Chloride
    Nucleophilic Substitution | Synthesis of n-Butyl Bromide and t-Pentyl Chloride | | Jessica | [Pick the date] | Abstract The synthesis of the alkyl halide n-Butyl Bromide from alcohol is the foundation for the experiment. During the isolation of the n-butyl bromide, the crude product is washed with sulfuric acid, water, and sodium bicarbonate to remove any remaining acid or n-butyl alcohol. The primary alkyl halide halide n-butyl bromide is prepared by allowing n-butyl alcohol to...
    1,598 Words | 5 Pages
  • column chromotagraphy - 500 Words
    Ferrocene and Acetylferrocene will be separated using column chromatography. Column chromatography is a separation technique that is used among many disciplines including biology, biochemistry, microbiology and medicine. Many common antibiotics are purified by column chromatography.1 Column chromatography allows us to separate and collect individual compounds. In this experiment, lumen will be the stationary phase, and the more polar substance will be retained on the stationary phase...
    500 Words | 2 Pages
  • Conclusion - 268 Words
    Conclusion: There are 3 different component dyes in the mix including blue dye, yellow dye and red dye. The blue dye has the highest Rf in chromatography ( Rf=1 in water and ethanol and isoprophy alcohol). The yellow dye has the lowest Rf in chromatography in ethanol and isoprophy alcohol and middle Rf in water (Rf=0.17 and isoprophy alcohol and lowest Rf in water (Rf=0.816 in ethanol, Rf= 0.678 in water and Rf=0.680 in isoprophy alcohol). Real World Connection HPLC-MS stands for High...
    268 Words | 1 Page
  • Lab Report Liquid Chromatograpy
    Title: Liquid Chromatography Author: Gloria Contreras Lab Partner: Jose Montanez Instructor: Teresa Potter Date Work Performed: January 13, 2015 Date Submitted: January 20, 2015 Abstract: In this lab, liquid chromatography is used to separate the Red 40 and Blue 1 dyes inside of grape flavored Kool-Aid. It was determined that the 5% isopropanol will remove the Red 40 dye from the stationary phase. The 28% isopropanol will remove the Blue 1 dye from the stationary phase. The...
    1,304 Words | 8 Pages
  • 5. Acylation of Ferrocene Post-Lab Report
    Name C.W. Lab Section 1 GTA N.C. Station 30 5. Acylation of Ferrocene Post-lab report Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table and be consistent with significant figures. Results Amounts and units Initial weight of Ferrocene 0.225 g Moles of Ferrocene 1.21 * 10 ^ -3 mol Initial volume of acetic anhydride 1.00 mL Moles of acetic anhydride...
    350 Words | 2 Pages
  • Lab 3C Report - 958 Words
     University of Texas at Tyler Lab 3C: Purification of L-Lactate Dehydrogenase By Affinity Chromatography on Cibacron-Blue Sepharose David Alexander 10-15-2014 Dr. Black Chem 4135.001 Abstract: Like the previous experiments, the ultimate goal of this lab was to purify the enzyme sample. However, this is the last lab for purification and high level techniques of purification were employed to achieve this. Dialysis was used first, lowering the small-molecule concentration within the sample....
    958 Words | 3 Pages
  • Ask for Help - 400 Words
    What physical evidence did you find at the victim’s home? Matches Space heater Bear bottles The girlfriends wallet Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? To take a sample of the burned floor we scraped the burnt wood will we got loose pieces of it. We did the same to take a sample of the wood that had not been burned. We took a sample of the...
    400 Words | 2 Pages
  • Grignard Synthesis Of Triphenylmethanol Patrick
    Grignard Synthesis of Triphenylmethanol Aim The aim of this experiment was to prepared Grignard reagent (phenylmagnesium bromide) from bromobenzene and magnesium, to use the reagent prepared to synthesise a tertiary alcohol (triphenylmethanol) by reacting reagent and ester (methyl benzoate), and the product formed is analyse by infrared spectroscopy (IR), melting point, thin layer chromatography (TLC), gas chromatography mass spectrum (GCMS) and finally Nuclear Magnetic Resonance spectroscopy....
    1,948 Words | 8 Pages
  • Chem 31.1 Notes - 271 Words
    Enrico Miguel S. Dizon Date Performed: April 22, 2013 2012-58079 Experiment # 4 Paper Chromatography 1. Why is the chromatogram developed in an essentially closed system? - The chromatogram is developed in a closed system in order to prevent the solvent to evaporate. Most solvents used in the chromatograph are toxic and flammable. It is also put in a close system to reduce the chance of outside factors...
    271 Words | 1 Page
  • Dehydration and Gc Lab Report
    Introduction In an E1 reaction, where E stands for elimination and 1 stands for unimolecular. The breaking of the C-LV bond is completed before any reaction occurs between the base to lose a hydrogen and form the carbon-carbon double bond [1]. When the more substituted alkene is the dominant product, the reaction follows Zaitsev's rule. Zaitsev's rule states that the major product of a β-elimination reaction is the most stable alkene [1].Acid-Catalyzed Dehydration is the elimination of a...
    1,090 Words | 5 Pages
  • Unit 4 Review - 863 Words
    Unit 4 Review. 1. Which is not a method for collecting a toolmark on a doorframe? a. casting that portion of the doorframe b. photography b. removing that portion of the frame c. making a rubbing of the mark on the frame 2. Which tool most likely made these striations? a. pry bar b. screwdriver c. Pliers d. bolt cutter 3. Analysis of radial cracks from three impacts revealed that cracks from A stopped at cracks from Z. Cracks from Z stopped at cracks from B. Which is the correct order of the...
    863 Words | 5 Pages
  • van Deemter equation - 783 Words
    Band broadening theory (Van Deemter equation) It is well recognized now that column band broadening originates from three main sources: 1. multiple path of an analyte through the column packing; 2. molecular diffusion; 3. effect of mass transfer between phases. In 1956 J.J. Van Deemter introduced the equation which combined all three sources and represented them as the dependence of the theoretical plate height (HETP) on the mobile phase linear velocity. Originally, it was introduced for...
    783 Words | 3 Pages
  • report - 1188 Words
    Title of experiment 3: Gel Filtration Chromatography of LDH INTRODUCTION Gel filtration chromatography is a type of column chromatography in which separated protein, peptides and amino acids on their molecular size. The stationary phase consists of beads containing pores. The mobile phase is the solvent that is found both around the beads and in the pores of the stationary phase matrix. As the sample is passes through the column, the molecule that are larger than the pores will not retarded...
    1,188 Words | 9 Pages
  • Tlc (Fluorene, 9-Fluorenol, 9-Fluorenone )
    1. In table format, provide the Rf values you recorded for each of the 3 compounds in Part I. List compound on one axis of your table and solvent system on the other. If multiple spots were present for a compound, give Rf value for each component and state if the component was major or minor. | 100% hexane | 25% EtOAc in hexane | 10% EtOAc in hexane | Fluorene | 0.34 cm | 0.94 cm | 0.67 cm | 9 - fluorenol | 0.00 cm | 0.49 cm | 0.05 cm | 9 - fluorenone | 0.00 cm | 0.69 cm | 0.21 cm |...
    1,400 Words | 4 Pages
  • Forensic Chemistry - 8438 Words
    Kayla Adkins Forensic Chemistry Exam 2 I have been honest and observed no dishonesty. 1. In specific detail, describe a published procedure for the definitive identification of Heroin utilizing gas chromatography-mass spectroscopy (GCMS). Heroin is a white crystalline powder with no odor and a bitter taste. It is a derivative of morphine in that the –OH (hydroxyl group) is replaced by an acetyl group, -OCOCH3 and has a molecular formula is C21H23NO5 with a molecular weight of...
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  • Radical Chlorination of 1-Chlorobutane
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