Analytical Chemistry & Polymer Characterization

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Analytical Chemistry & Polymer Characterization UL-STR helps manage supply chain risk, quality, and performance reliability. With analytical chemistry capabilities that cover a wide range of instrumental and classical wet chemistry techniques, UL-STR’s services UL-STR uses recognized methods focus on solutions to problems within the field of material science, with to ensure your products comply emphasis on polymeric materials. with international, national and regional regulation. Instrument analysis performed by expert staff can help clients in the advancement of effective quality assurance programs and regulatory • ASTM test methods compliance for their products. • FDA extraction studies in accordance with 21 CFR parts 170-199 • FT-IR – ATR, film, casting, pyrolysis, KBr, liquid • USP test methods for packaging and • UV / Visible Spectrophotometry with integrating sphere attachment storing pharmaceuticals -plastic, fabric, sunglasses and liquid • Atomic Absorption Spectrophotometry • Gas Chromatography – FID • GS-MS • Differential Scanning Calorimetry • Thermogravimetric Analysis • Flashpoint Determination (open and closed cup method) • ICP-OES • HD XRF • XRF Analytical evaluation provides quality assurance of raw materials, and quality control for your end use products. • Polymer / additive identification and quantification • Wet chemical methods • Test method development • Testing to client protocol Trusted the world over, UL-STR is an independent provider of quality assurance testing, audit, inspection and responsible sourcing services for the consumer products industry. Our reach encompasses over 30 countries across five continents and the capability to provide audit services in over 140 countries. Our customized solutions are tailored to help ensure products comply with industry standards, are produced to client specifications and meet consumer expectations. Put UL-STR to work for you. For more information on all the ways you can rely on UL-STR to help you effectively evaluate the quality of your products, contact [email protected] or visit www.strquality.com. THIS DOCUMENT IS FOR GENERAL INFORMATION PURPOSES ONLY AND IS NOT INTENDED TO CONVEY LEGAL OR OTHER PROFESSIONAL ADVICE. UL-STR DOES NOT PROVIDE LEGAL ADVICE REGARDING ANALYTICAL TESTING THROUGH ITS PROGRAMS UL and the UL logo are trademarks of UL LLC © 2012. Form ACPC / 03.22.12.

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Experiment 4 Analysis by Gas Chromatography
Experiment 4 Analysis by Gas Chromatography In this experiment we will study the method of gas chromatography. Gas chromatography (GC) is one of the most important analytical tools that the chemist has. In this lab you will watch and listen to a video presentation about GC, look at a research-level GC instrument, and learn how to do a qualitative and quantitative GC analysis. A schematic outline of a typical instrument is shown below. When a sample is injected into the correct column, a carrier gas sweeps the sample through the column. If necessary, an oven heats the system to vaporize the sample and speed its passage through the column. The different components of the sample will be separated by the column because each of the components “sticks” to the liquid coating that on the column packing differently. The greater the “stickiness,” the longer it takes for a substance to pass through the column. When a substance leaves the column, it is sensed by a detector. The detector generates a voltage that is proportional to the amount of the substance. The signal from the detector is then displayed by a chart recorder and/or fed into a computer. Modern gas chromatographs are connected to a computer which displays the peaks of all the substances in the sample. This is called the chromatogram. Software can perform all the calculations you will do in this experiment. An example of an analysis for cholesterol esters is shown above. If it could be done at all, this separation would take weeks by traditional wet chemistry.
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Lessons Learned from the Full Cup Wet Chemistry Experiment Performed on Mars with the Sample Analysis at Mars Instrument
Ninth International Conference on Mars 2019 (LPI Contrib. No. 2089) 6210.pdf LESSONS LEARNED FROM THE FULL CUP WET CHEMISTRY EXPERIMENT PERFORMED ON MARS WITH THE SAMPLE ANALYSIS AT MARS INSTRUMENT. M. Millan1,2, C. A. Malespin1, C. Freissinet3, D. P. Glavin1, P. R. Mahaffy1, A. Buch4, C. Szopa3,5, A. Srivastava1, S. Teinturier1,6, A. J. Williams7,1, A. McAdam1, D. Coscia3, J. Eigenbrode1, E. Raaen1, J. Dworkin1, R. Navarro-Gonzalez8 and S. S. Johnson2. 1NASA Goddard Space Flight Center, Greenbelt, MD, 20771 [email protected], 2Georgetown University, 3Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), UVSQ, France, 4Laboratoire de Genie des Procedes et Materiaux, CentraleSupelec, France, 5Institut Universitaire de France, 6Goddard Earth Science 7 Technology and Research, Universities Space Research Association, Dept. of Geological Sciences, University of Florida, 8Universidad Nacional Autónoma de México Introduction: The Curiosity Rover is ascending Mount Sharp, analyzing stratigraphic rock layers to find clues to Mars’ environmental history and habita- bility [1]. The Sample Analysis at Mars (SAM) in- strument suite onboard Curiosity includes a pyrolyzer coupled to a gas chromatograph-mass spectrometer (pyro-GCMS) mostly dedicated to the search for or- ganic molecules on Mars. SAM is able to perform in situ molecular analysis of gases evolved from heating solid samples collected by Curiosity up to ~900°C. SAM can then detect, separate, and identify volatiles inorganic and organic compounds released from the gas phase of the solid samples. SAM also carries nine sealed wet chemistry cups to allow for a new capability to be employed at Mars’ surface, opening the possibility for a larger set of or- Figure 1.
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Lessons Learned from the First Full Cup Wet Chemistry Experiment Performed on Mars with the Sample Analysis at Mars Instrument
50th Lunar and Planetary Science Conference 2019 (LPI Contrib. No. 2132) 2873.pdf LESSONS LEARNED FROM THE FIRST FULL CUP WET CHEMISTRY EXPERIMENT PERFORMED ON MARS WITH THE SAMPLE ANALYSIS AT MARS INSTRUMENT. M. Millan1,2, C. A. Malespin1, C. Freissinet3, D. P. Glavin1, P. R. Mahaffy1, A. Buch4, C. Szopa3,5, A. Srivastava1, S. Teinturier1,6, R. Williams1,7, A. Williams8,1, A. McAdam1, D. Coscia3, J. Eigenbrode1, E. Raaen1, J. Dworkin1, R. Navarro-Gonzalez9 and S. S. Johnson2. 1NASA Goddard Space Flight Center, Greenbelt, MD, 20771 [email protected], 2Georgetown University, 3Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), UVSQ, France, 4Laboratoire de Genie des Procedes et Materiaux, CentraleSupelec, France, 5Institut Universitaire de France, 6Goddard Earth Science Technology and Research, Universities Space Research Association, 7Department of Astronomy, University of 8 9 Maryland, , Dept. of Geological Sciences, University of Florida, Universidad Nacional Autónoma de México Introduction: The Curiosity Rover is currently ascending Mount Sharp, analyzing stratigraphic rock layers to find clues to Mars’ environmental history and habitability [1]. One of its key instruments, the Sample Analysis at Mars (SAM) instrument suite, contains a pyrolyzer coupled to a gas chromatograph-mass spectrometer (pyro-GCMS). This pyro-GCMS is largely dedicated to the search for organic molecules on Mars. SAM is able to perform in situ molecular analysis of gases evolved from heating solid samples collected by Curiosity up to ~900°C. SAM can then detect, separate, and identify volatiles in inorganic and organic compounds released from the solid samples. SAM also carries nine sealed wet chemistry cups. Wet chemistry allows for a new capability to be employed on the surface, potentially opening the possibility for a larger set of organics to be detected.
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Analytical Guide for Routine Beverage Analysis
Table of Contents Introduction Process Critical Parameters in Alcoholic Beverages Organic Acids Important Cations Sugars Metals Titration Parameters Reagent Ordering Table Analytical guide for routine beverage analysis Table of Contents Table of Contents Introduction Process Critical Parameters in Alcoholic Beverages Organic Acids Important Cations Introduction Sugars Process Critical Parameters in Alcoholic Beverages Important Cations Metals Acetaldehyde Ammonia Titration Parameters Alpha-Amino Nitrogen (NOPA) Calcium Reagent Ordering Table Beta-Glucan (High MW) Magnesium Bitterness Potassium Ethanol Sugars Glycerol D-Fructose Total Polyphenol D-Glucose Total Protein (Biuret) D-Glucose & D-Fructose Alpha Amylase D-Glucose & D-Fructose & Sucrose Organic Acids Sucrose Tartaric Acid Metals Acetic Acid Total Iron (Fe) Citric Acid Titration Parameters D-Gluconic Acid pH (colorimetric) D-Isocitric Acid pH and Conductivity by Electro chemistry D-Lactic Acid Free and Total SO2 L-Lactic Acid Total SO2 L-Malic Acid Total Acids (TA) Oxalic Acid Reagent Ordering Table L-Ascorbic Acid Table of Contents Beverage analysis Introduction Process Critical For all beverages, the compositional quality and safety must be monitored The Thermo Scientific™ Gallery™ Discrete Analyzer provides an integrated Parameters in Alcoholic to help track contamination, adulteration and product consistency, and to platform for colorimetric, photometric and electrochemical analyses, which Beverages ensure regulatory compliance from raw ingredients (water, additives and can be run in parallel. Discrete cell technology allows for simultaneous fruits) to the final product. measurement of several different tests for the same sample, eliminating Organic Acids method changeover time. Each individual reaction cell is isolated and Analytes of interest include ions, sugars, organic acids, alcohol, color, temperature-stabilized, thus providing highly controlled reaction conditions.
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Analytical Methodologies
ANALYTICAL METHODOLOGIES Qualitative Analysis – provides presence/absence information only (i.e., microbial screening) Quantitative Analysis – provides a measure of concentration (a number plus units) 1. Classical methods – ‘wet chemistry’ a) Gravimetric analysis (based on mass of analyte containing precipitate) b) Volumetric analysis (based on the volume of titrant required to reach end- point) Classical methods are generally accurate and precise, but may be time consuming and are usually limited to analysis of reasonably high concentrations of analyte (i.e., > 1 ppm) 2. Instrumental methods measure some form of a sensor/detector signal (usually a voltage or current) that is related either directly or indirectly to the analyte concentration via a calibration process. Instrumental methods are generally accurate, precise and readily automated, however require careful calibration procedures. a) electrochemical devices convert chemical concentrations directly into a measured voltage potential or electric current. examples: dissolved oxygen (DO) meter ion selective electrode (ISE) b) spectrophotometric instruments involve the interaction of the analyte with electromagnetic radiation (light) examples: UV/vis (colourimetric) atomic absorption spectrophotmetry (AAS) atomic emission spectrophotmetry (AES) atomic fluorescence spectrophotmetry (AFS) c) chromatographic instruments serve to separate and quantify members of a closely related series of analytes examples: gas chromatography (GC) high performance liquid chromatography (HPLC) ion chromatography (IC) capillary electrophoresis (CE) 3. Tandem Instrumental methods combine instruments in sequence, often coupling chromatographic separation with sensitive and selective detectors, such as mass spectrometry (MS) example: GC-MS/MS ANALYTICAL METHODOLOGIES 2016.doc Gravimetric Analysis A precipitating reagent is added to convert a soluble analyte species into an insoluble solid that contains the analyte in some known combination.
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Feo Analysis
FeO determination in rocks and minerals by wet chemistry Introduction Most analytical techniques used for rocks and minerals cannot distinguish between the oxidation states of different chemical elements, including iron. Because of its abundance, the redox state of iron can be particularly important. The iron in common rocks is in the Fe2+and 3+ Fe states, usually present in minerals as the nominal chemical components FeO and Fe2O3, respectively. The analytical procedure described here permits the analysis of FeO in a sample by titration. How it works 1. The powdered sample is dissolved with HF at room temperature in a plastic container. Dissolution occurs in the presence of excess V5+. V5+ oxidizes the Fe2+ to Fe3+ as it is released from the minerals, while vanadium is reduced to V4+. Oxidation of Fe2+ by air is rendered unimportant, and fortunately the reoxidation of V4+ back to V5+ by air is very slow. 2. V5+ remaining after dissolution is titrated using a standardized Fe2+solution. 3. Initial moles V5+ - final moles V5+ = moles Fe2+ in sample. This procedure can easily yield accuracy and precision of ~1%, but it is subject to interference from other reduced species such as Mn2+and sulfide. This method will not dissolve some Fe-bearing minerals such as chromite. Consult a geochemical methods text for a detailed discussion of analytical concerns. Though not especially complicated, this procedure involves the usual calculations involving volumes, weights, molecular weights, and moles. All of the calculations are given on this spreadsheet. One warning is that the titration is done in HF. You absolutely must take all reasonable precautions including wearing safety clothing, plastic or rubber gloves, goggles or a face mask, and you must have the hood fan turned on and sash as low as is convenient.
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Microbial Fermentation Services Experience Microbial Fermentation Unrivaled Services AbbVie Contract Manufacturing offers world-class fermentation capabilities based on more then 60 years’ leadership in fermentation. Your project will benefit from AbbVie’s scientific expertise as a leading development and manufacturer of fermentation processes at our 180-acre facility in Chicago, Illinois. We bring the same degree of expertise and passion to your project as we do with our own, supporting you from cell bank development through to large-scale manufacturing. Types of Products Types of Organisms • GMO & non-GMO manufactured under GLSP • Small molecule API’s to be administered orally or as an (good large scale practice) injectable • Experience with: • Large molecule API’s to be administered orally - Actinomycetes • Bulk food ingredients - E. coli • Agrochemical active ingredients - Fungi • Semi-synthetic products - Bacillus - Yeast Development Manufacturing (Non-GMP) Clinical and Commercial Manufacturing • Strain improvement via classical and recombinant methods • Over 3000 m3 fermentation capacity • Preparation of R&D, master and working cell banks • Fermenter working volumes from 10,000 L – 100,000 L • Inoculum process development • Batch and continuous sterilization of media • Fermentation and downstream process development • Dedicated facility for cell bank preparation and storage and characterization including: with redundant equipment and controls - 55-500 L fermenters in pilot plant • Broad range of downstream capabilities including:
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Laboratory Services
Technical Applications Center Corporate History Our Technical Applications Center encompasses The company that is known today as Esprix Technologies a 7000 square foot facility that houses a formulating was born as a division of the international fine chemicals and analytical laboratory, a pilot toner production area, business of the Koch Chemical Company, a and a print studio with end-use Electro-Photographic wholly-owned subsidiary of Koch Industries, Inc., (laser) printers, Inkjet Desktop printers, and Inkjet of Wichita, Kansas. In 1982, this division became an Wide-Format printers to support Esprix's growing independent entity, known as Nachem, Inc. Based portfolio of digital imaging chemistries. in Braintree, Massachusetts, Nachem flourished as a worldwide supplier of fine chemicals. One of the Esprix's Toner Technologies Laboratory is the companies represented by Nachem was Yorkshire Laboratory only independent toner laboratory in the United Chemicals PLC, based in Leeds, England. Services States and has an in-house Pilot Production Facility for manufacturing and testing toner The new company experienced rapid growth and formulations as well as performing comparative relocated to larger facilities in Rockland, Massachusetts raw material analysis within formulations. in 1990. The following year, the businesses within Yorkshire-Nachem were differentiated by the creation Another facet of TAC is the addition of controlled of the Esprit Chemical Company, a new division with atmosphere brazing (CAB) ovens used for testing a focus on non-Yorkshire produced performance and development of flux systems used to produce chemicals. In August 1993, the Esprit Chemical automotive heat exchangers. Company, an independent entity no longer affiliated with Yorkshire-Nachem, Inc.
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Actinide Analytical Chemistry
9 08 FACT SHEET The Laboratory is a recognized world leader in analyzing and studying actinides, a set of elements on the frontier of scientific inquiry. Actinide Analytical Chemistry Analytical chemistry identifies and quantifies the chemical play a vital part in ensuring national security through nuclear and isotopic composition of materials. Since the Manhattan science and technology. Key to our national role is our status as Project, timely and accurate chemical analyses a recognized leader in the international have supported Los Alamos National Laboratory’s Programs and Activities nuclear community for providing high- mission. Today, actinide analytical chemistry tasks • Stockpile stewardship quality analytical data. Our role in at the Laboratory range from analyzing samples • Mixed oxide fuel safeguards measurements and stockpile that help assess the impact of potential exposures support and our expertise in supplying data • Pit disassembly to hazardous materials, to certifying that a material for threat reduction and nuclear forensic is suitable for its intended use, to measuring • Nuclear forensic analysis arenas make actinide analytical nuclear stockpile performance. Actinide analytical • Global Nuclear chemistry a critical part of the chemistry also plays an important role in detecting Energy Partnership nation’s nuclear chemistry clandestine research, guarding against illicit (GNEP) capability. production of weapons of mass destruction, and • Plutonium analyzing samples to verify that nuclear materials stabilization and are kept under appropriate safeguards. disposition • Actinide research and Our focus is chemical and radiochemical analyses Plutonium metal development of materials where actinide elements make up a assay 238 significant portion of the sample matrix. These • Pu heat sources analyses encompass major component analyses and • Fabrication and trace measurements of impurities spanning over certification of high purity seven orders of magnitude of measurement and Pu metal and nondestruc- detection capability.
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Automating Wet Chemical Analysis.Pdf
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SYLLABUS CH 311 Analytical Chemistry (Quantitative Analysis
SYLLABUS CH 311 Analytical Chemistry (Quantitative Analysis) Instructor: Dr. W C. Mahone Class Meeting Location/Time: M W,F 3:50-5:05 p.m. Lab. R 03:50-06:20p.m. Phone: 254-3740 E-mail: [email protected] Office Location: FLW 214 Office Hours: MW, 9:00-10:00 & 02:00 to 03:00, T 1:00 to 4:00pm F 9:00-10:00 & 2:00-4:00 COURSE DESCRIPTION Analytical Chemistry I is designed to develop a strong skill set for quantitative analysis. This course includes stoichiometric calculations, study of statistical data analysis, standardization of data, solutions and their properties, properties of solution, acids and bases, electrochemistry, chemistry of metals and nonmetallic elements. PREREQUISITES CH 111,112 PURPOSE The primary purpose of this course is to teach students to analyze substances for the presence of inorganic analytes what is termed wet chemistry techniques. A secondary purpose is to complete a student’s indoctrination into the principles of general chemistry, and particularly stoichiometric calculations. In doing so, CH 311 develops the skills and scientific background required of teachers of students in public schools, as well skills required in a variety of career areas from medical and pharmacy to dentistry and engineering. Student Learning Outcomes The following general course goals are established to meet the purposes of CH 311: 1. Understanding of basic terms and processes of sampling and analysis. 2. Understanding of basic statistical functions and how to apply them. 3. How to perform an error analysis to determine how accurate data is. 4. Develop factual report writing skills.
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Electrochemistry / Geochemistry Group Report for XIS Workshop, Jan
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