LABORATORY FILTRATION APPARATUS Ace Glass Introduces a New Concept for Lab Filtration Apparatus
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
Standard Operating Procedure SEA05 Laboratory Analysis-Version
Gulf Coast Network National Park Service Inventory and Monitoring Division Standard Operating Procedure SEA05 Laboratory Analysis—Version 1.0 Please cite this as: Meiman, J. 2019. Laboratory Analysis—Version 1.0. Gulf Coast Network Standard Operating Procedure NPS/GULN/SOP—SEA05. Gulf Coast Network, Lafayette, Louisiana. Summary This standard operating procedure (SOP) for laboratory analysis of total suspended solids (TSS) is adopted verbatim from USEPA Method 160.2. Revision Log Revision Date Author Changes Made Reason for Change New Version # METHOD #: 160.2 Approved for NPDES (Issued 1971) TITLE: Residue, Non-Filterable (Gravimetric, Dried at 103–105°C) ANALYTE: Residue, Non-Filterable INSTRUMENTATION: Drying Oven STORET No. 00530 1. Scope and Application a. This method is applicable to drinking, surface, and saline waters, domestic and industrial wastes. b. The practical range of the determination is 4 mg / L to 20,000 mg / L. 2. Summary of Method a. A well-mixed sample is filtered through a glass fiber filter, and the residue retained on the filter is dried to constant weight at 103-105°C. b. The filtrate from this method may be used for Residue, Filterable. 3. Definitions a. Residue, non-filterable, is defined as those solids which are retained by a glass fiber filter and dried to constant weight at 103-105°C. 4. Sample Handling and Preservation a. Non-representative particulates such as leaves, sticks, fish, and lumps of fecal matter should be excluded from the sample if it is determined that their inclusion is not desired in the final result. b. Preservation of the sample is not practical; analysis should begin as soon as possible. -
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. -
Corning Life Sciences Selection Guide Issue 6
www.corning.com/lifesciences Corning Life Sciences Selection Guide Issue 6 Trust Corning for Your Research For superior quality and performance in life science research tools, you can count on Corning. Our comprehensive line of advanced products and technologies is designed to meet your evolving needs in cell-based and genomics research. To learn more, please visit www.corning.com/lifesciences, or call 1.800.492.1110. Customers outside the U.S., please call 1.978.442.2200 or contact your local support office (listed below). Corning Incorporated Worldwide India Taiwan United Kingdom Life Sciences Support Offices t 91-124-235 7850 t 886 2-2716-0338 t 0800 376 8660 f 91-124-401 0207 f 886 2-2716-0339 f 0800 279 1117 Corning BV Life Sciences ASIA/PACIFIC Japan All Other European EUROPE Koolhovenlaan 12 Australia t 81 (0) 3-3586 1996/1997 Countries 1119 NE Schiphol Rijk t 61 2-9416-0492 f 81 (0) 3-3586 1291/1292 France t 31 (0) 20 659 60 51 The Netherlands f 61 2-9416-0493 Korea t 0800 916 882 f 31 (0) 20 659 76 73 f 0800 918 636 Corning Incorporated China t 82 2-796-9500 f 82 2-796-9300 Germany LATINAMERICA Life Sciences t 86 21-3222-4666 t 0800 101 1153 Brasil Tower 2, 4th Floor f 86 21-6288-1575 Singapore f 0800 101 2427 t (55-11) 3089-7419 900 Chelmsford St. Hong Kong t 65 6733-6511 The Netherlands f (55-11) 3167-0700 Lowell, MA 01851 t 852-2807-2723 f 65 6861-2913 Mexico t 800.492.1110 f 852-2807-2152 t 31 20 655 79 28 New! t (52-81) 8158-8400 t 978.442.2200 f 31 20 659 76 73 f (52-81) 8313-8589 f 978.442.2476 www.corning.com/lifesciences Online ordering now available 6/08 6M APC CLS–PSG–001-A4-REV6 Corning, Costar, CellBIND, CellCube, CellSTACK, DNA-BIND, Lambda, Octapette, Spin-X, Stripette, Stripwell, Thermowell, Transtar-96, Transwell,, 8-Pette, and 12-Pette are registered trademarks of Corning Incorporated, Corning, NY. -
Building a Morbidostat: an Automated Continuous-Culture Device For
PROTOCOL Building a morbidostat: an automated continuous- culture device for studying bacterial drug resistance under dynamically sustained drug inhibition Erdal Toprak1,2, Adrian Veres3, Sadik Yildiz2, Juan M Pedraza4, Remy Chait1, Johan Paulsson1,5 & Roy Kishony1,5 1Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, USA. 2Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey. 3Health Sciences and Technology Program, Harvard Medical School, Boston, Massachusetts, USA. 4Department of Physics, Universidad de los Andes, Bogotá, Colombia. 5School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA. Correspondence should be addressed to E.T. ([email protected]) or R.K. ([email protected]). Published online 21 February 2013; doi:10.1038/nprot.2013.021 We present a protocol for building and operating an automated fluidic system for continuous culture that we call the ‘morbidostat’. The morbidostat is used to follow the evolution of microbial drug resistance in real time. Instead of exposing bacteria to predetermined drug environments, the morbidostat constantly measures the growth rates of evolving microbial populations and dynamically adjusts drug concentrations inside culture vials in order to maintain a constant drug-induced inhibition. The growth rate measurements are done using an optical detection system that is based on measuring the intensity of back-scattered light from bacterial cells suspended in the liquid culture. The morbidostat can additionally be used as a chemostat or a turbidostat. The whole system can be built from readily available components within 2–3 weeks by biologists with some electronics experience or engineers familiar with basic microbiology. INTRODUCTION Antibiotic resistance is an important public health problem, ren- at a constant rate lower than the maximal growth rate of the popu- dering currently available drugs useless and threatening millions lation, the dilution rate of the morbidostat rdilution ≅ ∆V/(V·∆t) is of lives1–4. -
SILICA, CRYSTALLINE in Coal Mine Dust, by IR 7603
SILICA, CRYSTALLINE in coal mine dust, by IR 7603 SiO2 MW: 60.08 CAS: 14808-60-7 RTECS: VV7330000 METHOD: 7603, Issue 2 EVALUATION: UNRATED Issue 1: 15 May 1989 Issue 2: 15 August 1994 quartz (respirable): 3 OSHA : 10 mg/m /(%SiO2 + 2) PROPERTIES: solid; crystalline transformations: quartz NIOSH: 0.05 mg/m3 (suspect carcinogen) to tridymite @ 867 °C: tridymite to ACGIH: 0.1 mg/m3 crystobalite @ 1470 °C; a-quartz to b-quartz @ 573 °C SYNONYMS: free crystalline silica; silicon dioxide SAMPLING MEASUREMENT SAMPLER: CYCLONE + PREWEIGHED FILTER TECHNIQUE: INFRARED SPECTROPHOTOMETRY (IR) (10-mm cyclone, nylon, or Higgins-Dewell (HD), and PVC filter, 37-mm, 5-µm) ANALYTE: quartz FLOW RATE: HD cyclone: 2.2 L/min WEIGH: dust cassette nylon cyclone: 1.7 L/min ASH: muffle furnace or RF plasma asher VOL-MIN: 300 L @ 0.1 mg/m 3 -MAX: 1000 L REDEPOSIT: 0.45-µm acrylic copolymer membrane filter SHIPMENT: routine IR: scan, 1000 to 650 cm -1, absorbance mode SAMPLE STABILITY: stable with blank filter in reference beam BLANKS: 2 to 10 field blanks per set CALIBRATION: standard suspension of quartz in 2-propanol BULK SAMPLE: required for OSHA standard calculations; area respirable or settled dust RANGE: 30 to 250 µg quartz per sample [1] ESTIMATED LOD: 10 µg quartz per sample [1] ACCURACY PRECISION (S r): 0.098 @ 100 to 500 µg per sample RANGE STUDIED: 25 to 160 µg/sample [1] (varies with sample matrix) [1] (2 mg quartz/m 3 atmosphere) BIAS: unknown ˆ OVERALL PRECISION (S rT): 0.13 to 0.22 (varies with sample loading and matrix) ACCURACY: ±25.6 to 43.4% APPLICABILITY: The working range is 0.03 to 2 mg/m 3 for a 1000-L sample. -
SILICA, CRYSTALLINE, by XRD (Filter Redeposition) 7500
SILICA, CRYSTALLINE, by XRD (filter redeposition) 7500 SiO2 MW: 60.08 CAS: 14808-60-7 (quartz) RTECS: VV7330000 (quartz) 14464-46-1 (cristobalite) VV7325000 (cristobalite) 15468-32-3 (tridymite) VV7335000 (tridymite) METHOD: 7500, Issue 4 EVALUATION: FULL Issue 1: 15 August 1990 Issue 4: 15 March 2003 3 3 OSHA : quartz (respirable) 10 mg/m /(%SiO2+2); PROPERTIES: solid; d 2.65 g/cm @ 0 °C; crystalline cristobalite and tridymite (respirable) ½ the above transformations: quartz to tridymite NIOSH: 0.05 mg/m3; carcinogen @ 867 °C; tridymite to cristobalite ACGIH: quartz (respirable) 0.1 mg/m3 @ 1470 °C; "-quartz to ß-quartz cristobalite (respirable) 0.05 mg/m3 @ 573 °C tridymite (respirable) 0.05 mg/m3 SYNONYMS: free crystalline silica; silicon dioxide SAMPLING MEASUREMENT SAMPLER: CYCLONE + FILTER TECHNIQUE: X-RAY POWDER DIFFRACTION (10-mm nylon cyclone, Higgins- Dewell (HD) cyclone, or aluminum ANALYTE: Crystalline SiO2 cyclone + 5-:m PVC membrane) *see sampling section ASH: Muffle furnace or RF plasma asher or dissolve in tetrahydrofuran FLOW RATE: Nylon cyclone: 1.7 L/min; HD cyclone: 2.2 L/min; REDEPOSIT: On 0.45-:m Ag membrane filter aluminum cyclone: 2.5 L/min XRD: Cu target X-ray tube, graphite VOL-MIN: 400 L monochromator -MAX: 1000 L Optimize for intensity; 1° slit Slow step scan, 0.02°/10 sec SHIPMENT: Routine Integrated intensity with background subtraction SAMPLE STABILITY: Stable CALIBRATION: :NIST SRM 1878a quartz, NIST SRM 1879a cristobalite, USGS 210-75-0043 BLANKS: 2 to 10 per set (see step 13.g.) tridymite suspensions in 2-propanol. BULK SAMPLE: High-volume or settled dust; to RANGE: 0.02 to 2 mg SiO2 per sample [2] identify interferences ESTIMATED LOD: 0.005 mg SiO2 per sample [2] ACCURACY þ PRECISION ( r): 0.08 @ 0.05 to 0.2 mg per sample [1] RANGE STUDIED: 25 to 2500 :g/m3 [1] (800-L sample) BIAS: None known Ö : OVERALL PRECISION ( rT): 0.09 (50 to 200 g) [1] ACCURACY: ± 18% APPLICABILITY: The working range is 0.025 to 2.5 mg/m3 for an 800-L air sample. -
Laboratory Equipment Used in Filtration
KNOW YOUR LAB EQUIPMENTS Test tube A test tube, also known as a sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom. Beakers Beakers are used as containers. They are available in a variety of sizes. Although they often possess volume markings, these are only rough estimates of the liquid volume. The markings are not necessarily accurate. Erlenmeyer flask Erlenmeyer flasks are often used as reaction vessels, particularly in titrations. As with beakers, the volume markings should not be considered accurate. Volumetric flask Volumetric flasks are used to measure and store solutions with a high degree of accuracy. These flasks generally possess a marking near the top that indicates the level at which the volume of the liquid is equal to the volume written on the outside of the flask. These devices are often used when solutions containing dissolved solids of known concentration are needed. Graduated cylinder Graduated cylinders are used to transfer liquids with a moderate degree of accuracy. Pipette Pipettes are used for transferring liquids with a fixed volume and quantity of liquid must be known to a high degree of accuracy. Graduated pipette These Pipettes are calibrated in the factory to release the desired quantity of liquid. Disposable pipette Disposable transfer. These Pipettes are made of plastic and are useful for transferring liquids dropwise. Burette Burettes are devices used typically in analytical, quantitative chemistry applications for measuring liquid solution. Differing from a pipette since the sample quantity delivered is changeable, graduated Burettes are used heavily in titration experiments. -
Edna PROTOCOL SAMPLE COLLECTION
eDNA PROTOCOL SAMPLE COLLECTION Caren Goldberg and Katherine Strickler, Washington State University September 2014 Adapted from Protocol Version 04/12/2012 (D.S. Pilliod, R.S. Arkle, and M.B. Laramie) USGS Snake River Field Station MATERIALS 1. Cellulose nitrate disposable filter funnels or other field-tested, disposable filter funnels 2. Vacuum flask (1L) 3. Silicone tubing 4. Vacuum hand pump (from auto parts store) 5. Rubber stopper with hole for funnel stem 6. Latex or nitrile gloves (non-powdered) 7. Forceps (filter forceps if possible) 8. High quality, o-ring screw cap 2mL tubes (e.g., Sarstedt brand) with 1mL 100% molecular-grade ethanol (not denatured) 9. Ethanol-proof laboratory pen (do not use a regular Sharpie marker) 10. 50 mL tubes of 30 mL 1) 50% household bleach solution 2) distilled water in a holder (a foam drink holder [koozie] works well) 11. Polypropylene grab bottles and cooler (for off-site filtering) or Whirl-Pak® bags (for on- site filtering) 12. Water, bleach, scrub brush, and tubs (for decontaminating between sites) 2 3 5 1 4 2 Figure 1. Filter funnel (1), vacuum flask (2), silicone tubing (3), vacuum pump (4), and rubber stopper (5). 9 7 10 8 6 1 Figure 2. Latex or nitrile gloves (6), forceps (7), 2 mL tubes with 1 mL ethanol (8), ethanol-proof lab marker (9), and 2 50 mL tubes with 50% household bleach solution distilled water (10). 3 11a 11b Figure 3. Polypropylene grab bottles (11a) and Whirl-Pak® bag (11b). 12a 12d 12b 12c Figure 4. Water (12a), bleach (12b), scrub brushes (12c), and tubs (12d) for decontaminating boots and equipment between sites. -
Chemistry 2A Lab Manual Standard Operating Procedures Winter Quarter 2018
Chemistry 2A Lab Manual Standard Operating Procedures Winter Quarter 2018 Department of Chemistry University of California - Davis Davis, CA 95616 Student Name Locker # Laboratory Information Teaching Assistant’s Name Laboratory Section Number Laboratory Room Number Dispensary Room Number 1060 Sciences Lab Building Location of Safety Equipment Nearest to Your Laboratory Safety Shower Eye Wash Fountain Fire Extinguisher Fire Alarm Safety Chemicals Revision Date 12/1/2017 Preface Chemistry is an experimental science. Thus, it is important that students of chemistry do experiments in the laboratory to more fully understand that the theories they study in lecture and in their textbook are developed from the critical evaluation of experimental data. The laboratory can also aid the student in the study of the science by clearly illustrating the principles and concepts involved. Finally, laboratory experimentation allows students the opportunity to develop techniques and other manipulative skills that students of science must master. The faculty of the Chemistry Department at UC Davis clearly understands the importance of laboratory work in the study of chemistry. The Department is committed to this component of your education and hopes that you will take full advantage of this opportunity to explore the science of chemistry. A unique aspect of this laboratory program is that a concerted effort has been made to use environmentally less toxic or non-toxic materials in these experiments. This was not only done to protect students but also to lessen the impact of this program upon the environment. This commitment to the environment has presented an enormous challenge, as many traditional experiments could not be used due to the negative impact of the chemicals involved. -
Solution Bottles NEW 500Ml Square Media Bottle Erlenmeyer & Fernbach Flasks
Erlenmeyer & Fernbach Flasks Solution Bottles • Compatible with 1 bottle top filters or for use as solution storage 1 containers (Bottle Top Filters sold separately, see page 35) 1 Solution bottle neck size is 45mm 2 Curved bottle design 3 2 for easy handling 2 SOLUTION BOTTLES S, R/D F, NP, USP, PS Working Pack Qty/ Part No. Product Description volume Description Case 229781 150mL Solution Bottle 150mL 1/Bag 24 229782 250mL Solution Bottle 250mL 1/Bag 24 229784 500mL Solution Bottle 500mL 1/Bag 24 4 229785 1000mL Solution Bottle 1000mL 1/Bag 24 • Designed for mammalian suspension culture applications as well as bacterial & yeast culture NEW 500mL Square Media Bottle • Conveniently pre-sterilized 1 70mm opening for easy filling and dispensing (Erlenmeyer & Fernbach) 2 2 Over-sized vent area in cap for improved gas exchange (Erlenmeyer & Fernbach) • Ideal for media prep and storage of laboratory reagents and biological buffers 3 Fernbach flask shape increases surface area to volume ratio • Square design saves valuable shelf space and is ideal for 4 Baffled bottom improves mixing and aeration stacking, such as in a refrigerator • Plain bottom also available Part No. 229896 - Transfer Assembly • Unique individually bagged packaging allows opening one at a time ERLENMEYER & FERNBACH FLASKS S, NP, USP, A, PC 1 • PETG material reduces gas permeability Cap Bottom Max. Pack Qty/ Part No. Product Description Type Type Volume Description Case 1 Molded graduations on two sides 229850 2L Erlenmeyer Flask Vent Plain 2200mL 1/Bag 6 229855 2L Erlenmeyer Flask -
Corning Cell Culture Selection Guide Corning Is Helping to Make Your Research Possibilities Real with New and Innovative Products
Corning Cell Culture Selection Guide Corning is helping to make your research possibilities real with new and innovative products. Introduction We have recently advanced our microplate line to include many enhancmements and new products. Check out the Corning is pleased to present our Life Sciences Selection Guide. In this guide, you will find a selection of our newest, new 384 well solid, low-volume and Poly-D-Lysine micro- most innovative and most requested products. plates, as well as 384 and 1536 well microplates with generic bar codes in the Microplates Section. For more than 150 years, Corning Incorporated has leveraged its materials science and process engineering expertise to For up-to-date information on Corning Life Sciences’ collaborate closely with customers worldwide — turning comprehensive range of products and services, go to what were once only possibilities into breakthrough realities. www.corning.com/lifesciences where you can access: Q New Products Information One such reality is the Corning® Epic® System, a high- throughput label-free screening platform based on optical Q Technical Information including: biosensor technology.The system performs both biochemical - Application Notes and cell-based drug discovery applications and offers drug - Instruction Manuals developers the ability to evaluate promising new drug - Product Bulletins targets. It also allows for the observation of direct biological Q Educational Opportunities interactions not previously detectable in high-throughput Q Product Catalog Information applications. Q Product Literature For hard-to-attach cell lines, Corning offers a number of Q Complete Distributor Information modified or synthetic surfaces including Corning CellBIND® Surface, Ultra-Low Attachment, and Ultra-Web™ Surfaces. -
Laboratory Filtration Principles and Chemical Compatibility Chart Filtration Simplified
Laboratory filtration Principles and chemical compatibility chart Filtration simplified Basic filtration concepts and terms Selecting a filter with the appropriate properties can help you achieve accurate results and reach discovery faster. But with so many types of filters to choose from, how can you be sure you’re making the right choice? GE Healthcare Life Sciences, maker of Whatman™ brand filtration products, has assembled this compilation of basic filtration concepts and terms to clarify the various options available to you and speed up your selection process. Ash content Hydrophilic Determined by ignition of the cellulose filter at 900°C Because hydrophilic filters possess an affinity for water in air. Minimizing ash content is essential in gravimetric and can be wetted with virtually any liquid, they are applications and also a useful measure of the level of typically used for aqueous solutions and compatible general purity. organic solvents. Chemical compatibility Hydrophobic It is very important to ensure that the structure of the These types of filters repel water, and are thus best suited filter media will not be impaired by exposure to certain for filtering organic solvents as well as for venting and chemicals. In addition, exposure to these chemicals gas filtration applications. should not cause the filter to shed fibers or particles, or add extractables. Length of exposure time, temperature, Liquid flow rate (including Herzberg method) concentration and applied pressure can all affect Under practical filtration conditions, the liquid flow rate compatibility. GE Healthcare has provided chemical will depend on a number of factors, many of which will compatibility charts to aid your filter selection.