Laboratory Consumables Catalog
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Analysis of Chemical Leaching from Common Consumer Plastic Bottles Under High Stress Conditions
AN ABSTRACT OF THE THESIS OF Paul John Dornath for the degree of Honors Baccalaureate of Science in Chemical Engineering presented on May 29, 2010. Title: Analysis of Chemical Leaching from Common Consumer Plastic Bottles Under High Stress Conditions Abstract approved: ______________________________________________ Skip Rochefort There has been much controversy in recent years over the leaching of chemicals from plastic water bottles. In this study, two of the most common plastics used in water bottles, polyethylene terphthalate (PETE) and polycarbonate (PC) were studied. The leaching of the chemical bisphenol-A (BPA) from polycarbonate (Nalgene ™, Camelback ™) water bottles was studied to examine the validity of these claims by exposing polycarbonate bottles to various conditions and analyzing how much BPA leaches into water contained in the bottles. New polycarbonate bottles were filled with water and exposed to treatment conditions ranging from 65 to 120 ⁰C. A reverse-phase solid phase extraction process was developed to extract BPA from the water and concentrate it into an organic phase. GC/MS was used to analyze the organic extract. BPA was only found to leach in detectable amounts (< 10ppb) when the bottles were exposed to 120 ⁰C water for 2 hours. Polyethylene terephthalate bottles were also tested and were exposed to sunlight for three months during the summer. Small amounts of the plasticizer DEHP were found to leach after several months. A method for determining what chemicals would leach from BPA-Free Tritan™ copolyester was also developed but not tested due to time constraints. An analysis of internal stress due to high humidity and temperature was performed on these BPA-Free bottles. -
Determination of the Identity of an Unknown Liquid Group # My Name the Date My Period Partner #1 Name Partner #2 Name
Determination of the Identity of an unknown liquid Group # My Name The date My period Partner #1 name Partner #2 name Purpose: The purpose of this lab is to determine the identity of an unknown liquid by measuring its density, melting point, boiling point, and solubility in both water and alcohol, and then comparing the results to the values for known substances. Procedure: 1) Density determination Obtain a 10mL sample of the unknown liquid using a graduated cylinder Determine the mass of the 10mL sample Save the sample for further use 2) Melting point determination Set up an ice bath using a 600mL beaker Obtain a ~5mL sample of the unknown liquid in a clean dry test tube Place a thermometer in the test tube with the sample Place the test tube in the ice water bath Watch for signs of crystallization, noting the temperature of the sample when it occurs Save the sample for further use 3) Boiling point determination Set up a hot water bath using a 250mL beaker Begin heating the water in the beaker Obtain a ~10mL sample of the unknown in a clean, dry test tube Add a boiling stone to the test tube with the unknown Open the computer interface software, using a graph and digit display Place the temperature sensor in the test tube so it is in the unknown liquid Record the temperature of the sample in the test tube using the computer interface Watch for signs of boiling, noting the temperature of the unknown Dispose of the sample in the assigned waste container 4) Solubility determination Obtain two small (~1mL) samples of the unknown in two small test tubes Add an equal amount of deionized into one of the samples Add an equal amount of ethanol into the other Mix both samples thoroughly Compare the samples for solubility Dispose of the samples in the assigned waste container Observations: The unknown is a clear, colorless liquid. -
Federal Register/Vol. 73, No. 121/Monday, June 23, 2008/Notices
Federal Register / Vol. 73, No. 121 / Monday, June 23, 2008 / Notices 35395 specific injury research that focuses on originally published in the Federal DATES: Written comments concerning prevention and control. Register in 1999 (64 FR 14086), ‘‘Notice the change in the volume of liquid in Matters to be Discussed: The meeting will Regarding Requirement for Annual the pH determination and the addition include the review, discussion, and Submission of the Quantity of Nicotine of four commercial smokeless tobacco evaluation of individual research grant and Contained in Smokeless Tobacco product categories must be received on cooperative agreement applications submitted in response to Fiscal Year 2008 Products Manufactured, Imported, or or before July 23, 2008. Requests for Applications related to the Packaged in the United States,’’ and ADDRESSES: Comments should be following individual research announcement: revised in the Federal Register on marked ‘‘Comments on Revised Protocol ‘‘Elimination of Health Disparities Through March 14, 2008 (73 FR 13903), for Analysis of Nicotine’’ and mailed to Translation Research (R18), Request for implements the requirement of the the Centers for Disease Control and Application (RFA) CD08–001 for the National Comprehensive Smokeless Tobacco Prevention, National Center for Chronic Center for Environmental Health Health Education Act (CSTHEA) of 1986 Disease Prevention and Health Applications.’’ (15 U.S.C. 4401 et seq., Pub. L. 99–252) Promotion, Office on Smoking and Agenda items are subject to change as that each entity manufacturing, priorities dictate. Health, Attention: Matthew McKenna, Contact Person for More Information: Jane packaging, or importing smokeless M.D., Director, 4770 Buford Highway Suen, PhD, M.S., Executive Secretary, NCIPC tobacco products shall annually provide NE., MS K–50, Atlanta, Georgia 30341– IRG, CDC, 4770 Buford Highway, NE., M/S the Secretary of Health and Human 3724. -
(Zostera Marina) at Seagrassnet Site Salem Sound MS 45.1 Last Updated 6/15/16 TE
Massachusetts MarineFisheries Standard Operating Procedure Monitoring eelgrass (Zostera marina) at SeagrassNet site Salem Sound MS 45.1 Last updated 6/15/16 TE POINT OF CONTACT Tay Evans Massachusetts Division of Marine Fisheries Annisquam River Marine Fisheries Field Station 30 Emerson Ave. Gloucester, MA 01930 978-282-0308 x168 [email protected] I. OBJECTIVE Quarterly monitoring of Salem Sound MS 45.1 (off of West Beach in Beverly) site as part of a global monitoring program. II. GEAR LIST A. Field Gear (Field Gear continued) . Divers . Tote: Personal Diving gear 2 large mouth catch bags with pocket Tanks/ Tank Racks 2 meter sticks Safety gear, dive float/flag 2 brass clip (for meter sticks) . Electronics: 3 screw anchors Drop camera, charged (July only) Re-Bar for screw anchors Underwater digital camera, charged 2 x 0.25m2 quadrats GoPro, extra batteries 1 x 0.0625m2 quadrat HOBO, launched (do not store in 3 mushroom weights plastic) 3 large surface buoys (A,B,C) . Blue Cooler: 2 subsurface toggle buoys Clip boards (metal and blue) (replacements) Transect tapes A, B, C Extra line for replacement if needed WD 40 . Extra in blue building: Duct tape Spool of potwort line Mesh bags nested 1-12 (all 3 sets) 6 large surface buoys on a rope Extra mesh bag for voucher 2 loose buoys Metal labeler Yellow string Labeled zip loc bags for samples (3 Scissors voucher, 3 sediment, 36 biomass (12 for each A, B, and C)) B. Laboratory Bags of ice for Samples & Extra Cooler Dissecting scalpel or razors Refractometer Forceps . -
Laboratory Equipment Reference Sheet
Laboratory Equipment Stirring Rod: Reference Sheet: Iron Ring: Description: Glass rod. Uses: To stir combinations; To use in pouring liquids. Evaporating Dish: Description: Iron ring with a screw fastener; Several Sizes Uses: To fasten to the ring stand as a support for an apparatus Description: Porcelain dish. Buret Clamp/Test Tube Clamp: Uses: As a container for small amounts of liquids being evaporated. Glass Plate: Description: Metal clamp with a screw fastener, swivel and lock nut, adjusting screw, and a curved clamp. Uses: To hold an apparatus; May be fastened to a ring stand. Mortar and Pestle: Description: Thick glass. Uses: Many uses; Should not be heated Description: Heavy porcelain dish with a grinder. Watch Glass: Uses: To grind chemicals to a powder. Spatula: Description: Curved glass. Uses: May be used as a beaker cover; May be used in evaporating very small amounts of Description: Made of metal or porcelain. liquid. Uses: To transfer solid chemicals in weighing. Funnel: Triangular File: Description: Metal file with three cutting edges. Uses: To scratch glass or file. Rubber Connector: Description: Glass or plastic. Uses: To hold filter paper; May be used in pouring Description: Short length of tubing. Medicine Dropper: Uses: To connect parts of an apparatus. Pinch Clamp: Description: Glass tip with a rubber bulb. Uses: To transfer small amounts of liquid. Forceps: Description: Metal clamp with finger grips. Uses: To clamp a rubber connector. Test Tube Rack: Description: Metal Uses: To pick up or hold small objects. Beaker: Description: Rack; May be wood, metal, or plastic. Uses: To hold test tubes in an upright position. -
FLEX™ Tubing Products
™ FLEX Tubing Products Contents Page The Right Tubing…at the Right Price Selection Guide for FLEX Tubing Products . 3 Tubing Conversion Chart . 3 Quality ClearFLEX 60 PVC Tubing . 4 Premium-quality FLEX tubing is made from the finest virgin resins, with no fillers or extenders. Our precision Crystal clear tubing that complies with USP Class VI, USDA and FDA CFR 21 extrusion process ensures close tol- requirements. Available in metric sizes as erances and excellent concentricity ClearFLEX M60 and vacuum-rated sizes for reliable, leakproof connections. as ClearFLEX V60. Adherence to the strict guide lines of our ISO 9001: 2000-registered ClearFLEX 70 PVC Tubing . 5 Quality Management System ensures consistent tubing – Crystal clear tubing that complies with lot after lot – with full traceability. USP Class VI, NSF 51, 3A, USDA and FDA CFR 21 requirements. Performance FLEX Tu b i ng Products are available in a variety of materi- als and sizes to meet virtually any fluid transfer need. And we offer a full range of regulatory compliance for food, FuelFLEX 65 PVC Fuel Tubing . 6 beverage, dairy, pharmaceutical, biotechnology and med- For intermittent use with petroleum-based ical applications. products such as gasoline, heating oils, cutting compounds and coolants. Service We support you with responsive, personalized service from your initial inquiry to the completion BraidFLEX 70N Braid-Reinforced PVC Tubing . 6 of your order. And our new website For higher-pressure applications, including allows you to check tubing specifications lab, food and beverage use. Complies and submit technical questions and with FDA CFR 21 for food packaging and inquiries at your convenience, 24 hours NSF-51. -
LOWERING COSTS and SIMPLIFYING WORKFLOW with the Automate 2550 SYSTEM
HACETTEPE UNIVERSITY FACULTY OF MEDICINE HOSPITAL CENTRAL AND STAT LABORATORIES LOWERING COSTS AND SIMPLIFYING WORKFLOW WITH THE AutoMate 2550 SYSTEM Laboratory profile › 1,040-bed hospital located in Ankara, Turkey › Provides uninterrupted 24/7 inpatient, outpatient and emergency services › Employs 6 professors, 6 associate Hacettepe University Faculty of Medicine Hospital is one of the leading professors and 130 operators university hospitals in Turkey. The university is well known for its › Performs up to 6.5 million geographical location and adoption of ground breaking technologies. biochemistry and hormone While the reference site is preferred by a large number of patients, it is tests annually of particular interest to specific patient populations seeking test results › Processes up to 2 million tests from a variety of panels. With many different systems performing on instruments in more than hundreds of standard and specialized tests, the hospital’s laboratories 20 different units are driven to ensure the delivery of results without error, while › Operates a Beckman Coulter containing costs and managing workload burden. standalone AutoMate 2550 pre- For more than 16 years, the facility—which has been held up as an and post-analytical automation system in the biochemistry example of excellence in its own region, as well as all over the country— laboratory, along with a Power has been using a standalone automation system with an aliquoter Processor system with two feature. With this technology, it has enhanced patient satisfaction, -
Chapter 2 2.1 Description of Kit Items
Manual of SEAT Friendly MCL Kit 7 Chapter 2 2.1 Description of Kit Items S.No. Item Name Figure/Setup Uses (Quantity/ kit) 1. Storage box opens on both sides. Contains necessary 1. Wooden box apparatus for doing with revolving experiments. top 2. Revolving top containing (1) dispensing bottles and vials for easy access to chemicals. 1. As a container for keeping liquids. 2. Microbeaker (10 mL) (12) 1. As a container for use in electrochemical experiments, 3. Beaker (50 thermochemistry experiments mL) preparation of salts, etc. (3) Steps for use 1. Bore the rubber cork to fit the stem of Hirsch funnel. 2. Cut the filter paper to fit the mesh of the funnel. The size should exactly fit the mesh, 4. Micro- neither big nor small. filtration 3. Fit the cork with funnel in unit the mouth of the boiling tube (2) (having a side tube). 4. Transfer the solution to be filtrated to the funnel. 5. Press the bulb with hand to evacuate it and place it on the side tube of the boiling tube while keeping it pressed. 6. Release the pressure. The bulb will suck the air inside the boiling tube allowing fast filtration. 8 Manual of SEAT Friendly MCL Kit S.No. Item Name Figure/Setup Uses (Quantity/Kit) 1. The watch glass is used to hold solids when being 5. Watch glass weighed. (2) 2. It should never be heated. 1. Flat plate with multiple “wells” used as micro test tubes. 2. Contains 96 rectangular matrix. 3. Each well of a micro plate typically holds somewhere between a few to a few hundred microlitres of liquid. -
Laboratory Supplies and Equipment
Laboratory Supplies and Equipment Beakers: 9 - 12 • Beakers with Handles • Printed Square Ratio Beakers • Griffin Style Molded Beakers • Tapered PP, PMP & PTFE Beakers • Heatable PTFE Beakers Bottles: 17 - 32 • Plastic Laboratory Bottles • Rectangular & Square Bottles Heatable PTFE Beakers Page 12 • Tamper Evident Plastic Bottles • Concertina Collapsible Bottle • Plastic Dispensing Bottles NEW Straight-Side Containers • Plastic Wash Bottles PETE with White PP Closures • PTFE Bottle Pourers Page 39 Containers: 38 - 42 • Screw Cap Plastic Jars & Containers • Snap Cap Plastic Jars & Containers • Hinged Lid Plastic Containers • Dispensing Plastic Containers • Graduated Plastic Containers • Disposable Plastic Containers Cylinders: 45 - 48 • Clear Plastic Cylinder, PMP • Translucent Plastic Cylinder, PP • Short Form Plastic Cylinder, PP • Four Liter Plastic Cylinder, PP NEW Polycarbonate Graduated Bottles with PP Closures Page 21 • Certified Plastic Cylinder, PMP • Hydrometer Jar, PP • Conical Shape Plastic Cylinder, PP Disposal Boxes: 54 - 55 • Bio-bin Waste Disposal Containers • Glass Disposal Boxes • Burn-upTM Bins • Plastic Recycling Boxes • Non-Hazardous Disposal Boxes Printed Cylinders Page 47 Drying Racks: 55 - 56 • Kartell Plastic Drying Rack, High Impact PS • Dynalon Mega-Peg Plastic Drying Rack • Azlon Epoxy Coated Drying Rack • Plastic Draining Baskets • Custom Size Drying Racks Available Burn-upTM Bins Page 54 Dynalon® Labware Table of Contents and Introduction ® Dynalon Labware, a leading wholesaler of plastic lab supplies throughout -
Chemistry Laboratory Safety Rules
Orange Coast College Chemistry Laboratory Safety Rules All chemistry students must successfully pass a test on the following material before they are allowed to work in the laboratory. The test consists of 20 multiple choice questions. The importance of safety requires a high passing score. General Rules 1. No eating, drinking, chewing gum, smoking, or vaping is permitted in the laboratory. 2. Shoes (closed-toed) and appropriate clothing must be worn in the laboratory. Sandals, shorts, etc. do not provide sufficient protection from an accident. To prevent damage, avoid wearing expensive clothing in the lab. 3. Be prepared for lab. Read the procedures carefully before your scheduled lab period and follow all instructions. 4. No unauthorized experiments or unsupervised laboratory work is permitted. An unauthorized experiment is anything that is not in the experimental procedures or instructions given by your professor. 5. Visitors and children are not allowed in the laboratory. Exit the lab if you need to communicate with your visitors. 6. Clean up all chemical spills immediately, including water on the floor. 7. Report any accident, no matter how minor, to the instructor. 8. Never leave your experiment unattended when there is a hazard such as a lit burner. 9. Before you leave the laboratory, always clean your work area, lock your drawer, make certain that water and gas are off, and counters and floor are clean and dry. Safety goggles are to be removed only immediately before leaving lab. 10. Keep backpacks & personal items on the coat rack or shelves above them, to keep the aisles free of tripping hazards. -
Nalgene and Nunc Centrifuge Ware Catalog
Nalgene and Nunc Centrifuge Ware Select the right vessel and spin with confidence Spin with confidence at virtually any scale The process of selecting a centrifuge and rotor can feel like the easy part when faced with choosing the tube or bottle that is the right fit for both the rotor and application. There are several factors to consider when selecting the correct vessel for each application: • Chemical compatibility • Volume • Temperature • Relative centrifugal force (RCF) required • Protocols to be used for loading and sample recovery • Cleaning and autoclaving steps Understanding your requirements before selecting a tube or bottle ensures you make the right choice. Whether your application includes the need for separations, large volume pelleting, protein purification or DNA isolation, the comprehensive selection of Thermo Scientific™ Nalgene™ and Thermo Scientific™ Nunc™ centrifuge ware offers a solution for virtually scales and is available in sizes from 10 mL to 2 L. Such a broad offering means a tube or bottle for many spins – from clinical and bioproduction, to processing bacteria, yeast, tissue, and viruses. Contents Centrifuge tubes 4 Centrifuge bottles 20 Closures and adaptors 31 Resources 36 Simplify performance at every turn with a reliable and safe approach to centrifugation Nalgene Conical-Bottom Centrifuge Tubes polypropylene copolymer Thermo Scientific™ Nalgene™ PPCO conical-bottom centrifuge tubes with molded-in graduations have excellent chemical resistance. Designed for low-speed centrifugation in refrigerated and non-refrigerated centrifuges details • Translucent PPCO is compatible with a wide range of lab reagents • Conical bottoms concentrate pellet in a small area for easy isolation and retrieval • Molded-in graduations last the life of the tube • Last longer than polycarbonate tubes under conditions of repeated Note: Centrifuge tubes must be filled at least 80% for proper performance. -
Miniav®-X Automatic Viscometer Instruction & Operation Manual
MiniAV®-X Automatic Viscometer Instruction & Operation Manual 81.2254 i CONTENTS 1 INTRODUCTION/INSTALLATION 1 The miniAV®-X Automatic Viscometer .................................................................................. 1 Measuring kinematic viscosity ............................................................................................... 2 Safety cautions ..................................................................................................................... 2 Specifications ....................................................................................................................... 4 Installation ............................................................................................................................ 4 Required installation components ............................................................................... 4 Vacuum Pump unit connections ................................................................................. 6 Bath unit connections ................................................................................................ 6 VISCPRO® for Windows® XP® ............................................................................................ 6 Installing VISCPRO® software .............................................................................................. 7 Computer requirements ............................................................................................. 7 Windows® XP® installation .......................................................................................