Analytical chemistry Essays & Research Papers

Best Analytical chemistry Essays

  • Analytical Chemistry - 1126 Words
    Analytical Chemistry Analytical Chemistry is the branch of chemistry principally concerned with determining the chemical composition of materials, which may be solids, liquids, gases, pure elements, compounds, or complex mixtures. In addition, chemical analysis can characterize materials but determining their molecular structures and measuring such physical properties as pH, color, and solubility. Wet analysis involves the studying of substances that have been submerged in a solution and...
    1,126 Words | 4 Pages
  • Analytical Chemistry Intro - 3375 Words
    1 UNIVERSITY OF TECHNOLOGY, JAMAICA DIVISION OF CHEMISTRY GROUP: MODULE: AS-2, SE-3, MT-2, BPharm-3, BENG-2C ANALYTICAL CHEMISTRY (CHY3022, CHY2017) ___________________________________________________________________________ UNIT 1: Assigned Reading: BASIC ELEMENTS OF ANALYTICAL CHEMISTRY Chapt. 1 and 8 Fundamentals of Analytical Chemistry, 8th edition INTRODUCTION  Analytical Chemistry – that branch of chemistry which is concerned with the theory and practice of methods used to...
    3,375 Words | 12 Pages
  • Analytical Chemistry Test with Multiple Choice Questions
    CHEM 4183 Exam #2 Name:________________________ March 11, 2013 I. Multiple Choice (3 pts each) Choose the best answer and write it to the left of the problem number in the space provided. 1. What is a particular advantage of graphite furnace atomic absorption over flame atomic absorption? (a) higher temperature (b) lower S/N (c) less interference (d) small sample amounts 2. In atomic emission spectroscopy, it is desirable to have a high concentration of...
    437 Words | 3 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
  • All Analytical chemistry Essays

  • Analytical Chemistri Intro - 1796 Words
    Analytical Chemistry I 1 Course Outlines         LU1 :Analytical Chemistry Overview LU2: Measurements and Data Treatment LU3: Stoichiometric Calculations LU4: General Concepts of Chemical Equilibrium LU5: Gravimetric Methods LU6: Acid-Base Equilibria LU7: Acid-base titrations LU8: Analytical Separations Course Assessment Laboratory reports (15%)  Assignments (15%)  MidTerm Examination (30%)  Final Examination (40%)  3 References 1. Christian, G.D....
    1,796 Words | 12 Pages
  • Introduction for a Chemistry Report - 438 Words
    The average University student has many tasks to accomplish and much studying to do while combating the onslaught of sleep. Students at the University of the West Indies Mona are no different and recommended amongst themselves a highly rated and popular health supplement “Yeast-Vite” [8]. Yeast-Vite is a health supplement pill which helps people fight fatigue and improve alertness. The active ingredients in Yeast-Vite are caffeine, vitamin B1, vitamin B2, vitamin B3. The other ingredients...
    438 Words | 2 Pages
  • Chemistry Percent Composition Report
    Percent Composition Report Hypothesis : By using seperation techniques properly, the 3 substance such as; water, sand, and salt can be seperated and the percent composition of each substance. Which will then be calculated theoritically and after comparison with the actual result, the accuracy of the 2 result can be found. Aim : The aim of this experiment is to compare the gravimetric result of the original mixture and the separated substance. The other objective is to calculate each percent...
    546 Words | 3 Pages
  • Forensic Chemistry & Trace Evidence
    Forensic Science: Analytical Techniques Unit 6 Project Student: Steve Gregory Kaplan University CJ385-01 Professor: Al Luckas Forensic Chemistry and Trace Evidence Analysis Author S. Gregory October 31, 2011 Forensic scientists are governed by a process that is known as the scientific method. The scientific method adheres to strict guidelines which will ensure the careful and systematic collection, organization, and analysis...
    471 Words | 2 Pages
  • Chemistry 100 Project Final
    Relevance of Chemistry 3 Analytical Chemistry 5 Chemical and Biology Safety 9 Classification of Hazardous Chemicals 15 Biochemistry 24 Organic Reactions 32 Radiation 34 Environmental Concerns 40 The Relevance of chemistry to Occupational Safety, Health an Environment Chemistry is the science of chemicals which studies the laws governing their formation, combination and behaviour under various conditions,...
    2,663 Words | 9 Pages
  • Chemistry Notes Module 3
    Deduce the ions present in a sample from the results of tests ____________________________________________________________ _ Describe the use of atomic absorption spectroscopy (AAS) in detecting concentrations of metal ions in solutions and assess its impact on scientific understanding of the effects of trace elements Hollow-cathode lamp selection • The light source in the atomic absorption spectrometer is usually a hollow-cathode lamp of the element that is being measured. • So,...
    1,464 Words | 6 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
  • Development & Validation of Analytical Methods for Doxophylline
    1. INTRODUCTION --------------------------------------------------------------------------------------------------- Need for Drug analysis: 1 The number of drugs introduced into the market is increasing every year. These drugs may be either new entities or partial structural modification of the existing one. Very often there is a time lag from the date of introduction of a drug into the market to the date of its inclusion in pharmacopoeias. This happens because of the possible...
    6,631 Words | 29 Pages
  • Environmental Chemistry Determining The Phosphate Level Of Water
     Environmental Chemistry: Determining the Phosphate Level of Water Objective: -To understand the effects of phosphates from fertilizers into water supplies. -How to use a spectrophotometer and understand how it works. -Understand the correlation and usage of Beer’s law with calibration curves. Introduction/Procedure: Environmental protection has been a growing concern for many people in the recent years. With talks of global warming, deforestation, and rising ocean acidity in the news it is...
    1,216 Words | 5 Pages
  • List of Chemistry Terms Used in Daily Life
    List of Chemistry Terms used in daily life α (alpha), β (beta) α- (β-, γ-) ray spectrometer α-addition (alpha-addition) α-cleavage (alpha-cleavage) α-decay (alpha-decay) α-effect α-elimination α-expulsion in photochemistry α-oxo carbenes α-particle (alpha-particle) 'A' value -factorquantity ab initio quantum mechanical methods abatement in atmospheric chemistry abeo- abiological abiotic abiotic transformation absolute activation analysis absolute activity, quantity...
    19,197 Words | 204 Pages
  • determination of moisture - 1348 Words
    Tittle: Determination of moisture Objectives: 1. To determine the moisture content of selected food samples using drying oven method 2. To determine the moisture content of selected food samples using moisture analyzer. Introduction: Moisture content is one of the most commonly measured properties of food materials. The choice of an analytical procedure for a particular application depends on the nature of the food being analyzed and the reason the information is needed. In this...
    1,348 Words | 6 Pages
  • Calcium Absorption - 271 Words
    Introduction In order to determine the content of calcium and magnesium in an unknown sample of limestone, the utilization of atomic absorption spectrophotometry can help in deciphering the unknown concentrations of each molecule in the limestone sample. Atomic absorption spectrophotometry, emits radiation of the correct frequency that is passed through a flame and the intensity of the transmitted radiation is measured¹.The calcium concentration or ppm can be measured using the absorbance of...
    271 Words | 1 Page
  • Gravimetric Analysis of a Soluble Sulfate
    Abstract Gravimetric analysis describes the methods for finding the chemical constituent of analyte in a solution through analytical chemistry. This method uses the mass of solid SO42-, with an unknown quantity and quality, to qualitatively determine the makeup of the solid SO3-. Two separate experiments with the initial compounds of BaCl2 and SO42- were put into solution to allow for the BaSO4 precipitate to form. Through filtration and ignition of precipitate containing ashless...
    1,682 Words | 6 Pages
  • Development and Validation of a Rp-Hplc Method for the Determination of Chlorpheniramine Maleate and Phenylephrine in Pharmaceutical Dosage Form
    Maithani M et al. / Pharmacie Globale (IJCP) 2010, 5 (05) Available online at www.pharmacie-globale.info ISSN 0976-8157 Research Article PHARMACIE GLOBALE INTERNATIONAL JOURNAL OF COMPREHENSIVE PHARMACY DEVELOPMENT AND VALIDATION OF A RP-HPLC METHOD FOR THE DETERMINATION OF CHLORPHENIRAMINE MALEATE AND PHENYLEPHRINE IN PHARMACEUTICAL DOSAGE FORM Mukesh Maithani*, Richa Raturi, Vertika Gautam, Dharmendra Kumar, Amrendra Kumar Chaudhary, Anand Gaurav and Ranjit Singh School of...
    2,589 Words | 18 Pages
  • biology - 1883 Words
    Pre-Lab 1 Assignment Quantitative Analysis of Biomolecules Biochemical analysis involves the characterization of biomolecules within a sample using appropriate laboratory techniques. There are two principal approaches: 1. Qualitative analysis – where a sample is analyzed to determine whether a biomolecule is present or absent. As an example, a blood sample might be analyzed for a specific antibody or a bacterial cell might be probed for a nucleic acid sequence. 2. Quantitative...
    1,883 Words | 8 Pages
  • Determination of Zinc and Nickel Concentration by (1) Ion-Exchange Chromatography Followed by Chelometric Titration, and by (2) Atomic Absorption Spectroscopy of the Mixture
    DETERMINATION OF ZINC AND NICKEL CONCENTRATION BY (1) ION-EXCHANGE CHROMATOGRAPHY FOLLOWED BY CHELOMETRIC TITRATION, AND BY (2) ATOMIC ABSORPTION SPECTROSCOPY OF THE MIXTURE Experiment 4 Dates of Experiment: 10/14/08 through 10/30/08 Date of Report: 11/7/08 Chem 2262L � I. Introduction In this experiment, the zinc and nickel contents of unknowns were tested using two methods. In the first method, nickel and zinc were separated through ion-exchange chromatography and analyzed through...
    1,332 Words | 11 Pages
  • Determination of Chromium (Vi) by Direct Visible Spectrophotometry (External Calibration Method)
    Experiment No. 3 Determination of Chromium (VI) by Direct Visible Spectrophotometry (External Calibration Method) Group Members: Cabahug, Elisha Niña M. Date Performed: November 20 & 22, 2012 Mejia, Helen Mae N. Date Submitted: November 29, 2012 Score: I. Introduction Spectrophotometric measurements with UV or visible light radiation are useful in detecting transition metal ions and highly conjugated organic compounds. In UV and visible light regions, energy spaces...
    1,227 Words | 5 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
  • NAs-meat determination - 5698 Words
    Food Chemistry 138 (2013) 227–233 Contents lists available at SciVerse ScienceDirect Food Chemistry journal homepage: www.elsevier.com/locate/foodchem Analytical Methods Determination of volatile N-nitrosamines in meat products by microwave-assisted extraction coupled with dispersive micro solid-phase extraction and gas chromatography – Chemical ionisation mass spectrometry Man-Chun Huang, Hsin-Chang Chen, Ssu-Chieh Fu, Wang-Hsien Ding ⇑ Department of Chemistry, National Central...
    5,698 Words | 29 Pages
  • Gravimetric Sulfate Determination - 1384 Words
    GRAVIMETRIC DETERMINATION OF SULFATE Purpose You will be given a solid powder, which has been dried to constant mass. The sample is water soluble. The purpose of this experiment is to determine the concentration of sulfate in your solid sample using gravimetric analysis. Background Gravimetric Analysis The goal of most quantitative chemical analysis measurements is to estimate the relative abundance of an analyte in a chemical sample. For solid and liquid samples, a very common expression...
    1,384 Words | 5 Pages
  • Lab Ducument - 5240 Words
    LABORATORY DOCUMENTATION REQUIRED FOR DATA EVALUATION USEPA Region IX Quality Assurance Office San Francisco, California R9QA/004.2 AUGUST 2001 CONTENTS 1.0 2.0 Introduction General Documentation Requirements 2.1 Data Package Format 2.2 Case Narrative 2.3 Chain-of-Custody 1 2 2 2 3 3.0 Organic Analyses Documentation Requirements 4 3.1 Summary of Environmental Sample Results 4 3.2 Summary of QA/QC Sample Results 4 3.2.1 Instrument Calibration 4 3.2.2 Method...
    5,240 Words | 26 Pages
  • Determination of Sulfate by Gravimetry - 1072 Words
    Determination of Sulfate by Gravimetry Jose Luis E. De Guzman University of Santo Tomas, Sampaloc, Manila The determination of the percentage of sulfate in a sample is done as an instrument of learning a quantitative method of analysis, i.e., of the gravimetric analysis. This type of analysis, which makes use of the weight of the samples was used for the experiment and required the precipitation of our analyte, SO4-2, and its filtration as a BaSO4 precipitate so as for weighing it. The...
    1,072 Words | 4 Pages
  • Determination of Iron in Cereal Using Aas
    EXPERIMENT : Iron in Breakfast Cereal by Atomic Absorption Spectroscopy OBJECTIVES : 1) To determine the actual iron content of different brands of cereals 2) To compare the experimental results with the values listed on the manufacturer’s labels. INTRODUCTION : Iron is one of the important minerals that is required for our bodies to function properly. Most of the iron in our body is found in the blood such as haemoglobin, approximately 60 -70% of the human body’s iron is...
    1,643 Words | 6 Pages
  • Gravimetric Determination of Moisture in Fertilizer Samples
    GRAVIMETRIC DETERMINATION OF MOISTURE IN FERTILIZER SAMPLES J.P. FERRERIA DEPARTMENT OF COMPUTER SCIENCE, COLLEGE OF ENGINEERING DATE PERFORMED: DECEMBER 6, 2012 ------------------------------------------------- RESULTS AND DISCUSSION In this experiment, we demonstrated the process called gravimetric analysis, where we, specifically, measured the amount of moisture in a fertilizer sample. Here, the weights of the crucibles with the fertilizer samples are measured before and after...
    786 Words | 3 Pages
  • Gravametric Quant Lab Report
    Quantitative Analysis Gravimetric Determination of Iron as Fe2O3 Laboratory Experiment 2 February 19, 2013 Abstract: In the Gravimetric determination is the measurement of mass in two different forms precipitation and volatilization. In our experiment we will be using the precipitation form which isolates an ion in a solution by a precipitation reaction, filtering, purifying by wash method, conversion to product of known composition, and final weigh of the product comparing the...
    1,394 Words | 5 Pages
  • Cool people - 472 Words
    Chapter 1 1 Classify the following analyses as qualitative or quantitative. a an analysis that showed that Vegemite contains 0.55 mg of vitamin B1 and 0.80 mg of riboflavin per 5 g b detection of toxic materials in the gaseous discharge from a factory c confirmation of the presence of lead in a sample of blood d comparison of the concentrations of trace elements in glass fragments removed from the skin of a hit-and-run accident victim with those in the glass fragments from the broken...
    472 Words | 2 Pages
  • Quantitative Separation of Mixtures - 807 Words
    Quantitative Separation of a Mixture Lab Pre-Lab Questions: 1. Define the following: Physical Change Heterogeneous Mixture Sublimation Filtrate Residue 2. List two physical separation methods. 3. List the formula for determining percent composition by mass. Objectives: 1. to separate a three component mixture and 2. determine the percent composition by mass of each component in the mixture. Materials: Ammonium chloride (NH4Cl), Sodium chloride (NaCl also known...
    807 Words | 4 Pages
  • Spectrophotometric Determination of Equilibrium Constant for a Reaction
    DATE PERFORMED: JULY 20, 2007 SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT FOR A REACTION ABSTRACT UV-VIS spectrophotometry is one of the most widely-used methods for determining and identifying many inorganic species. During this experiment, this spectrophotometry was used to determine the equilibrium constant, Keq, of the Fe3+(aq)+SCN-(aq)↔ FeSCN2+(aq) reaction. By determining the amount of light absorbed, the concentration of the colored FeSCN2+ solution was also...
    3,017 Words | 11 Pages
  • proximate analysis - 5178 Words
    ABSTRACT: Water is omnipresent in foodstuffs and the surrounding atmosphere. In principle, the moisture content of a food can therefore be determined accurately by measuring the number or mass of water molecules present in a known mass of sample. It is not possible to directly measure the number of water molecules present in a sample because of the huge number of molecules involved. A number of analytical techniques commonly used to determine the moisture content of foods are based on...
    5,178 Words | 25 Pages
  • Atomic Absorption Spectroscopy Application
    Introduction Atomic Absorption Spectrometer (AAS) is an analytical equipment commonly used for the detection of heavy metals in particular sample. The first step to analysis in the AAS is the atomization of the desired element by converting it to a gaseous state. The atoms then absorb the energy emitted from the hollow cathode lamp corresponding to the desired element and a detector reads the signal and records the results. The results may be used quantitatively or qualitatively depending on...
    284 Words | 1 Page
  • Spectrophometry on KMnO4 - 2391 Words
    EXPERIMENT 11 UV/VIS Spectroscopy and Spectrophotometry: Spectrophotometric Analysis of Potassium Permanganate Solutions. Outcomes After completing this experiment, the student should be able to: 1. 2. 3. 4. Prepare standard solutions of potassium permanganate. Construct calibration curve based on Beer’s Law. Use Beer’s Law to determine molar absorptivity. Explain the fundamental principal behind spectrophotometric analysis Introduction Most analytical methods require calibration (a process...
    2,391 Words | 14 Pages
  • Biotechnology Ensures Green Clean India
    CURRICULAM VITAE Mr. K NAGENDRA, M.Sc. Organic Chemistry, JANGAM PALLI (P), RAYAVARAM (V) (: +91 9849261102 T.SUNDU PALLI (MANDAL), Email:nagteach@gmail.com KADAPA (DIST). Career Objective: To obtain a responsible, challenging, and awarding position in a life science organization where my skills, abilities and technical abilities can be utilized. Educational...
    272 Words | 3 Pages
  • Quantitative Analysis - 1777 Words
    Quantitative Chemical Analysis Lab Chemistry 223 Dr. Dean Olson Fall Semester 2013 Friday, August 30 Who Am I?   B. Chem. – U. of Minnesota, Minneapolis M.S. – U. of North Carolina, Chapel Hill   Environmental Chemistry; Copper kinetics in estuaries Later work: Calcium and magnesium binding to blood coagulation proteins   Ph.D. – U. of Illinois; Oscillatory enzyme kinetics NMR Lab Director; see web page ( http://scs.illinois.edu/nmr/ )   11 magnets, 350 users, 4...
    1,777 Words | 14 Pages
  • Mullo - 1489 Words
    INDUSTRIAL CHEMIST Industrial Chemists study and apply the physical and chemical properties of substances to determine their composition. They use this information to develop new substances, processes and products and to increase scientific knowledge. Industrial Chemists may perform the following tasks: * Conduct experiments to identify chemical composition and study chemical changes which occur in natural substances and processed materials * Undertake research and analysis to...
    1,489 Words | 5 Pages
  • Perfume Analysis - 432 Words
    FACH2702 Practical Analysis of imposter perfumes Aim: To determine which out of 4 unknown samples are genuine perfumes, and which are imposter/fake perfumes. This will be done by analysing gas chromatography plots, and comparing the components in the samples to that of a known standard perfume. Results: To determine which of the four sample perfumes where imposter and which were real, components present in each perfume were analysed using gas chromatography and compared to the known...
    432 Words | 2 Pages
  • Indirect Gravimetric Determination - 696 Words
    Purpose: The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These...
    696 Words | 3 Pages
  • analysis of glucosamine from tablets
    [Downloaded free from http://www.www.ijpsonline.com on Friday, July, 4 2008] www.ijpsonline.com Short Communications Spectrophotometric Method for Determination of Tablets Glucosamine in Tablets PRIYA GAONKAR, VINEETA KHANVILKAR, RAJANI SHETTIGAR AND CHHAYA GADGOLI* Saraswathi Vidya Bhavan’s College of Pharmacy, Sonarpada, Dombivli (East)-421 201, India. A rapid and sensitive method has been developed for the determination of glucosamine sulphate from tablets by...
    1,278 Words | 7 Pages
  • Absorption Spectroscopy: Beer-Lambert Law
    Absorption Spectroscopy Author: Cesar M. Lemas Lab Partners: Jahnnan Jayesh Patel, Myong Ho Lee & Salem Alsaif Instructor: Jordan Andrew Mudery Chem 151, Section 7D Date Work Performed: October 18th 2012 Date Report submitted: October 25th 2012 Abstract Absorption spectroscopy is a practical way to find what the light absorption of a substance is, and whit this data combining the Beer’s law equation you can determine the concentration of different things in a solution,...
    1,043 Words | 4 Pages
  • Standard Test Methods for Arsenic in Water
    Designation: D2972 – 08 Standard Test Methods for Arsenic in Water1 This standard is issued under the fixed designation D2972; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval. 1. Scope 1.1 These test methods2 cover the photometric and...
    9,617 Words | 25 Pages
  • Clo2 Residual Testing Method
    CHLORINE DIOXIDE AND CHLORITE 105 7. ANALYTICAL METHODS The purpose of this chapter is to describe the analytical methods that are available for detecting, measuring, and/or monitoring chlorine dioxide and chlorite, its metabolites, and other biomarkers of exposure and effect to chlorine dioxide and chlorite. The intent is not to provide an exhaustive list of analytical methods. Rather, the intention is to identify well-established methods that are used as the standard methods of...
    2,156 Words | 9 Pages
  • Solution Preparation - 418 Words
    Experiment 5 Solution Preparation 1. Why should the solutions be prepared with 0.10M HCl used as solvent? a. What will happen to Fe3+ if the solution was not prepared using 0.10M HCl? b. Give the balanced equation for the 1st hydrolysis of Fe3+. c. What is the color of the product of 1st hydrolysis of Fe3+? d. What is the effect of the product of 1st hydrolysis to the absorbance of the solution? Determination of Analytical Wavelength 2. Why should...
    418 Words | 2 Pages
  • Codeine - 831 Words
    ESTIMATION OF COLCHICINE:In the first method for extraction (Method 1)[1], 0.5 g of powdered plant material was extracted twice with 25 ml of petroleum ether with frequent shaking for 1 h, followed each time by filtration. The solid residues were air dried and then extracted with 10 ml of dichloromethane at room temperature for 30 min with frequent shaking. Then 10% solution of ammonia (0.5 ml) was added to the mixture with vigorous shaking for 10 min; the mixture was left undisturbed for 30 min...
    831 Words | 3 Pages
  • Quantification of Proteins in Solution by Spectrophotometer
    Experiment 2 Quantification of Proteins in Solution by Spectrophotometer Lab bench# 1 Introduction: Absorption spectroscopy is a common method for finding the concentration of proteins or protein complexes in a solution. Proteins absorb light at specific wavelengths and can be defined by the equation A = log (Io/I). This equation states that an absorbance at a specific wavelength, A is equal to the log of the ratio of incident light intensity (Io), to transmitted light intensity (I). A...
    2,268 Words | 7 Pages
  • Crude Fat - 676 Words
    Introduction Crude fat is the term used to refer to the crude mixture of fat-soluble material present in a sample. Crude fat also known as the ether extract or the free lipid content the traditional measure of fat in food products. The lipid materials may include triglycerides, diglycerides, monoglycerides, phospholipids, steroids, free fatty acids, fat soluble vitamins, carotene pigments, chlorophylls, etc. The common approach for total crude fat determination is based on the solubility of...
    676 Words | 3 Pages
  • 01 Lecture chapter 00 01
    WELCOME! Analytical Chemistry CHEM 2354 Analytical Chemistry CHM 2354, Winter 2015 Schedule: Monday LAB 14:30-18:30 Marion Hall (MRN) Room: 301 Tuesday DGD Thursday DGD Thursday LEC Tuesday LEC 14:30-15:30 14:30-15:30 08:30-10:00 10:00-11:30 HGN FSS Montpetit Hall (MNT) Montpetit Hall (MNT) Room: 302 Room: 2005 Room: 202 Room: 202 Instructor: Professor Maxim Berezovski Office: Address: D’Iorio Hall room 201 Phone: 613-562-5800 ext. 1898 e-mail: Maxim.Berezovski@uottawa.ca web page:...
    2,191 Words | 26 Pages
  • Computer Lab Automation - 10663 Words
    FEASIBILITY STUDY FOR COMPUTERIZED AUTOMATION OF EPA REGIOTCfl TECHNICAL SUPPORT BRANCH ^Fred B. Stephens,'William F. Morris, 7 George W. Barton, Jr., and Eugene R. Fisher February 9, 1978 Work performed under ths auspices of the U.S. Department of Energy by the UCLLL under contract number W-7Jo5-ENG-48. INHLAWREISiCE I U 5 UVERMORE I S LABORATORY ^^OPTal-DOCDMSOT-B «nica3Sl> Distribution Category UC-11 LAWRENCE LIVERMORE LABORATORY University of CakfaTiia/Livetmore,...
    10,663 Words | 37 Pages
  • english - 2666 Words
    Year 12 Chemistry 2011 Student Handbook Table of Contents Errors 2 Significant Figures 2 States of Matter in Equations 2 Revision Hints 3 Equations 4 VCAA 2008-2011 Key Skills 6 Unit 3 VCAA Study Design 7 Unit 3 Timetable 8 Unit 3 Work Set Questions 10 Unit 4 VCAA Study Design 11 Unit 4 Timetable 12 Unit 4 Work Set Questions 14 ERRORS When instruments are manufactured, there is a specified uncertainty within which the instrument is...
    2,666 Words | 17 Pages
  • Absorbance and Spectrophotometry - 1514 Words
    Experiment 2: Absorbance and Spectrophotometry ABSTRACT: This was an investigation into the effects of different wavelengths of light on methylene blue and carmine red on the absorbance value on a spectrophotometer. A spectrophotometer is used to measure light intensity by emitting a single light source through a cuvette of coloured solution. The particles in the solution, which are coloured, absorb the light depending on how concentrated it is and this produces an electronic reading...
    1,514 Words | 7 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
  • FLAME ATOMIC ABSORPTION SPECTROSCOPY
    FLAME ATOMIC ABSORPTION SPECTROSCOPY: SUMMARY INTRODUCTION Elemental analysis of the majority of organic and inorganic matrices requires the partial or total dissolution of the sample prior to instrumental analysis. Analysis by spectroscopic methods practically always necessitates a simple or more complex preparation of the sample. These steps are generally the most critical part of analysis because they are responsible for the most important errors. Only a few direct methods allow the...
    3,163 Words | 10 Pages
  • Colorimetric Analysis - 692 Words
    Colorimetric Analysis: Manganese in Steel Chemistry 2272F Nov 8, 2012 Introduction The goal of the experiment is to determine the percentage of Mn in an unknown metal sample by means of colorimetric analysis. First stock solution of KMnO4 with known concentration was diluted and then carried to spectrometer for analysis. The peak with highest absorbance was taken as λmax. Then the molar extinction coefficient is calculated by plugging the value into the Beer-Lambert equation. Then the...
    692 Words | 3 Pages
  • Difference in Lymphatic Function in Health and Disease State
    QUALITY EVALUATION OF PARACETAMOL IN THE BULK, DOSAGE FORMS AND BODY FLUIDS USING THE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) TECHNIQUE S. Asare-Nkansah and J.K. Kwakye Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana ABSTRACT High Performance Liquid Chromatography has been used to evolve an analytical procedure for the evaluation of the content of paracetamol in the bulk,...
    3,534 Words | 23 Pages
  • Development of Validated Rp-Hplc Method for the Simultaneous Estimation of Tamsulosin Hydrochloride and Finasteride from Tablet Dosage Form
    DEVELOPMENT OF VALIDATED RP-HPLC METHOD FOR THE SIMULTANEOUS ESTIMATION OF TAMSULOSIN HYDROCHLORIDE AND FINASTERIDE FROM TABLET DOSAGE FORM Susheel John Varghese, Leela Madhuri Pola, K.Murugavel, and T.K.Ravi. College of Pharmacy, Sri Ramakrishna Institute of Paramedical Sciences, Coimbatore – 641044, Tamilnadu. E-Mail: velmpharm24@gmail.com A precise, accurate and rapid RP-HPLC method has been developed and validated for the simultaneous estimation of...
    265 Words | 1 Page
  • Absorbance and Spectrometry - 903 Words
    Abstract This report investigates the absorbance of methylene blue and carmine red using a spectrophotometer to determine the absorption spectra of both solutions. The concentration of the unknown solution of methylene blue was found to be 1.07 x 10-5 M by using the molar extinction coefficient, with absorption of 0.547. It was also found that the results concluded confirmed beer’s law with an R2 value of 0.9989. Introduction Spectrophotometry is the quantitative measurement of the...
    903 Words | 3 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
  • Chem Lab - 721 Words
     Separation Methods Submitted By: Tiffany Lam Partner’s Name: Morgan Silveira Date of Submission: September 25, 2013 Lab Section: CHE110L*Z Purpose The purpose of this experiment is to use two common laboratory methods to see how mixtures can be separated based on physical properties. Paper chromatography will be used to separate the dye colors from M&M candy to see which colors contain yellow #5. Gravimetric separation will be used to...
    721 Words | 4 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
  • Lipids: Fatty Acid and Amp
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  • Analysis of Toy Cars for Heavy Metal Content
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  • Chem Synthesis of a Copper Complex
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  • Analysis of Mouthwash - 537 Words
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  • Conclusion - 268 Words
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  • separation method - 836 Words
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  • separation of mixture - 290 Words
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  • Lab Report Liquid Chromatograpy
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  • Biovail Business Case Memo
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  • Separation of a Mixture of Solids - 325 Words
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  • Soil Lab report - 610 Words
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    610 Words | 3 Pages
  • Ion Exchange Chromatography - 306 Words
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