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Topic: Chemical reagent


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In the News (Fri 25 Dec 09)

  
  Urine diagnostic Reagent Test Strips
The reagent pads react with the sample urine to provide a standardized visible color reaction within 30 seconds to one minute depending on the specific panel screen.
Depending on the test and specific reagent panel, abnormal levels of specific chemical compounds contained in urine can be easily and readily identified as potential risks factors to overall health and/or indicators of underlying health problems.
Each of the ten reactive reagent pads on the test strip are compared to the corresponding line of color blocks on the chart.
www.craigmedical.com /urine_diagnostics.htm   (1320 words)

  
  Reagent unit intended for microanalyses of standard type and device and method for its production - Patent 4062652
The reagent dose can be situated either within a limited area on a carrier of band form, for example a plastic strip, or may consist of an exactly cut length of a wire or bead of reagent on such a carrier.
The apparatus may be such that the reagent dose expelled at the point of the pipette in highly viscous or gelatinous form is separated from the point of the pipette by a knife-edge or a sharp edge, for example the edge of a tubular carrier passing said tip.
Common to all kinds of chemicals in reagents, and which are exemplified in groups A, B and C, is that the reagent unit must be definitely obtainable in the correct quantity at a given time.
www.freepatentsonline.com /4062652.html   (4396 words)

  
 Reagent - Wikipedia, the free encyclopedia
For example hydrochloric acid is the chemical reagent that would cause calcium carbonate to release carbon dioxide.
Similarly, but less obvious, hydrochloric acid is the chemical reagent that reacts with zinc to produce hydrogen, even though in this case the hydrogen comes from the acid and not the metal.
In another use of the term, when purchasing or preparing chemicals, "reagent." describes chemical substances of sufficient purity for use in chemical analysis, chemical reactions or physical testing.
en.wikipedia.org /wiki/Reagent   (190 words)

  
 OHS - Chemical Waste Management
When chemicals are received take all precautions to store them according to manufacturers' recommendations such as by refrigeration, under an inert atmosphere or in a dessicator.
Also get rid of chemicals that tend to form peroxides or become more reactive with time that are approaching the end of their shelf life.
Reagent grade chemicals are very expensive to dispose of compared to routine chemical wastes generated by research and education.
www.udel.edu /OHS/chemicalwasteminimize.html   (742 words)

  
 7
Although chemical modification can be defined as any alteration of the covalent structure of a protein via introduction or removal of a chemical group, we use a more restrictive definition in the context of this chapter.
This is particularly true in cases where chemical modifications are to be used in the construction of hybrid molecules or where loss of biological activity as a result of a modification must be reacquired.
The reagents discussed here have been selected on the basis of (1) their widespread use, and (2) the purpose behind the modification reaction (i.e., the introduction of a reporter group, the alteration of the charge of a residue, or their reversibility).
www.richmond.edu /~jbell2/CHAPT7.html   (11226 words)

  
 Chemicals: Managing, Handling and Disposing ~ Safety Manual ~ Maryland Public Schools
Chemical safety is the responsibility of everyone who uses the classroom laboratory, but safe management of chemicals begins with the teacher who orders and uses these products.
Safe management of chemicals in the classroom requires that the teacher have adequate knowledge of the chemicals to be used and their interactions.
Reagent chemicals should be ordered in quantities consistent with the rate of use.
www.mdk12.org /instruction/curriculum/science/safety/chemicals.html   (3546 words)

  
 White Flyer - Home > Reagent Chemical
Reagent is recognized as the largest supplier of hydrochloric acid in the United States.
Reagent Chemical is dedicated to maintaining leadership in the hydrochloric acid market by continuously improving and increasing production, building new plants, bulk storage facilities and expanding our transportation fleet of tank cars and trucks.
Reagent Chemical is a major marketer of refinery recovered molten sulfur, having long term commitments with major oil companies at three refineries.
www.whiteflyer.com /homereagent.html   (287 words)

  
 Frequently Asked Questions, Chemical Waste Topics
The chemicals listed in Appendix H — Drain and Trash Disposal Procedure within the College’s Waste Disposal Procedures have been determined by EHS to be approved for drain or trash disposal.
Chemical Waste Satellite Accumulation Areas are designated with a CWSAA poster (available online or by contacting EHS) in conjunction with the use of a secondary containment.
Containers from household products are not made to the same chemical resistance standards as those used for chemicals, and may not maintain their integrity when used to contain laboratory reagent chemicals or chemical waste.
www.med.cornell.edu /ehs/faq/chemical_waste.htm   (1452 words)

  
 Glucose medical monitoring system - Patent 4637403
The chemical reagent is sealed inside the Med-Point probe housing or inside a specific housing for the chemical reagent obviating the effects of contamination (from fingers), moisture, and light, thus improving accuracy and precision of measurement by stabilizing the oxidation reduction or chemical reaction of the reagent prior to use.
The blood sample on reagent strip 94 is processed by chemical reaction inside reagent strip 94, and color change of strip is read from the opposite side of reagent strip 94 by reflection of light from LED 50 to the phototransistor 52.
The blood sample on the reagent strip 184 reacts with the reagents in the reagent strip 184 and the resulting color change is read from the opposite side by optical sensor 172, whose signals are converted by electronics into a numerical readout on display which reflects the glucose level of the blood sample.
www.freepatentsonline.com /4637403.html   (8083 words)

  
 [No title]
To minimize the possibility of such hazards, the fronts of all chemical storage shelves should be equipped with horizontal bars so chemicals will not fall in the event of an earthquake.
Chemicals with a particular storage color may be stored together, except when indicated otherwise.
Chemicals with different storage color labels should be stored in different areas.
www.csun.edu /~vceed002/ref/laboratory/safety/ChemicalStorage.html   (720 words)

  
 A Citizen's Guide to Chemical Dehalogenation
Chemical dehalogenation is a chemical process to remove halogens (usually chlorine) from a chemical contaminant, rendering it less hazardous.
The dehalogenation reaction occurs when several chemicals including sodium hydroxide (a base) are mixed with the condensed contaminants and heated in the reactor.
Characteristics of the contaminated material that interfere with the effectiveness of chemical dehalogenation are high clay or water content, acidity, or high natural organic content of the soil.
www.environmental-expert.com /articles/article43/article43.htm   (1404 words)

  
 Chemical Reagent Suppliers of India
Exporters Of Analytical, Reagent Chemicals, Battery Chemicals, Electroplating And Water Treatment Ch...
Chemical Reagent, Chemicals, Chemicals, Electro Plating, Chemicals, Photographic, Cosmetic And Toile...
Chemical Reagent, Chemicals, Dyes And Pigment, Inorganic Chemical Materials, Organic Chemical Materi...
directory.jimtrade.com /6/chemical_reagent.htm   (455 words)

  
 American Chemical Society Publications: Reagent Chemicals, 10th Edition
The American Chemical Society’s Committee on Analytical Reagents is the only organization in the world that sets requirements and develops validated methods for determining the purity of analytical reagents.
As always, reagent chemical supplements and committee meeting minutes with meeting announcements will be available free of charge and posted on the site as they become available.
The new hardcover 10th edition of Reagent Chemicals is also available at Oxford University Press’s website at http://www.oup.com/us/brochure/0841239452/?view=usa.
pubs.acs.org /reagents/index.html   (391 words)

  
 nanjing chemical reagent factory no.1   (Site not responding. Last check: 2007-10-22)
Nanjing Chemical Reagent Co. Ltd. is a company with more than forty years’ development history, which was named Nanjing Chemical Reagent Factory No.1 when it was founded in 1958.
We mainly engage in producing, importing and exporting products including such six categories as chemical reagent, catalyst, precious metal salts, pharmaceutical auxiliary material, photographic reagents and bio-chemical reagents of aminophenol variety, which can be further divided into over 600 brands.
As standing director of the Association of China’s Chemical Reagent Industry, the company is one of the domestic production bases of chemical reagent, which is ranked among top three in terms of comprehensive strength.
www.china-chem-reagent.com /english   (256 words)

  
 chemical glassware(1) - Changshu Deschem Chemical Equipments Co.,Ltd.
Changshu Deschem Chemical Equipments Co.,Ltd. Home : Products Product Description: chemical glassware(1), Along with our country chemical industry, specially the organic synthesis and the polymer chemistry industry rapid development, is day by day urgent to the chemical equipment anticorrosion technology request.
The high boronsilicon glass is one kind, it has the good chemical stability, the mechanical strength is big, as a result of the technological level unceasing enhancement, develops gradually from the laboratory instrument production to the chemical equipment manufacture, in solves in the broad scope medium corrosion already a result.
Along with our country chemical industry, specially the organic synthesis and the polymer chemistry industry rapid development, is day by day urgent to the chemical equipment anticorrosion technology request.
www.allproducts.com /manufacture97/deschem/product1.html   (427 words)

  
 Ion Trap Chemical Ionization   (Site not responding. Last check: 2007-10-22)
With a reagent pressure only 1% of a traditional CI source, the contamination from the reagent is all but eliminated.
Unlike sourced MS detectors, the Saturn GC/MS requires only a very low CI reagent pressure, so a variety of liquids may be used in the place of gaseous reagents.
For example, methanol is a "hard" CI reagent giving spectra similar to methane CI while acetonitrile provides a "softer" ionization similar to that obtained with isobutane or ammonia.
www.varianinc.com /cgi-bin/nav?varinc/docs/products/chrom/gcms/gcms_ITCI&cid=975JINLJQLJKOGLMOOJOM   (328 words)

  
 Latent Print Examination: Chemical and Reagent logs from ASCLD-Certified Labs
(1.4.2.8) Reagents must be labeled with the identity of the reagent and date of preparation or "lot" number.
Records must be maintained identifying who made the reagent and that it was tested and worked as expected to check th reliability of the reagent.
In other words, document who prepared the ninhydrin, PD, etc., solution; when they prepared it; and when it was tested for effectiveness (a properly prepared reagent may, for a variety of reasons, not do what it was expected to do).
onin.com /fp/wwwbd/messages/5/227.html?992918700   (268 words)

  
 Laboratory Chemical Manufacturers, Reagent Chemical Services Ltd
We supply a variety of analytical and laboratory chemicals to many industries including power generation, pharmaceutical, food manufacturing, environmental and chemical distribution.
ReAgent is accredited to both ISO 9001:2000 and Investors In People.
Our specialist manufacturing facilities allow us to produce a huge range of reagents and solutions in a variety of sizes, from sachets and ampoules to 1000 litre Industrial Bulk Containers (IBC's) and virtually everything in between.
www.reagent.co.uk   (220 words)

  
 Chemical resistant seals, gaskets, and o-rings by Seals Eastern, Inc.
When searching for a chemical resistant o-ring, gasket, or seal, the most successful elastomers will be in the class of fluorocarbon rubbers.
As a general rule, the higher the fluorine content, the broader the chemical resistance.
However, there are exceptions to this rule that can be attributable to the solubility parameter of a given reagent and the elastomer designated to seal the reagent.
www.sealseastern.com /chemical-resistant-seals.htm   (295 words)

  
 china chemical
We are china chemical manufacturer, chemical exporter whom export chemical reagent, phosphate chemicals, feed additives, refrigeration chemical, PTFE, barite power, chemical pesticide....
For other chemicals inquiry, please mention the name of the chemical with American CAS no. / quantity you can buy / final destination (market) to us.
If you are interesting to sell your chemicals to China, we are interesting to buy your chemical and sell within China as well, please send chemical name / American CAS no.
sznorinco.com /chemicals   (120 words)

  
 Chemical Structure Software Reviews: Flowchart, tree structure views of C source; Flowchart, tree structure views of C ...   (Site not responding. Last check: 2007-10-22)
Chemical Equation Expert 2.00 - A tool to balance and calculate equations.
Chemical Equation Expert is an integrated tool for chemistry professionals and students to solve chemical equation problems.
Furthermore, It provide a expandable chemical equation library to help you find an equation or make a summary of a certain type of reactions easily.
www.softcetera.com /software/Chemical-Structure.htm   (553 words)

  
 Chemical Reagent Manufacturer, Exporter, Supplier, Directory, China, Taiwan, Factory, Chemical Reagent, Product, Catalog
We have a broad range of Chemical Reagent manufacturers, exporters and suppliers source and trade services, which can be searched by this comprehensive vertical web portal.
We are dedicated to helping worldwide Chemical Reagent buyers sourcing and purchasing from China and Taiwan Chemical Reagent manufacturers, suppliers and exporters.
Taking advantage of the robust search engine of CHINA SUPPLIERS DIRECTORY, global Chemical Reagent importers, agents and distributors even ODM/OEM will easily find their opportunities to establish business relationship with reliable Chemical Reagent manufacturers, suppliers and exporters.
www.china-suppliers.org /product_html/Chemical-Reagent.html   (412 words)

  
 Shenyang Pharmacy Company Chemical Reagent Glasses Apparatus Branch
Last year, we collaborated with Shanghai Chemical Agent Company and Beijing Chemical Agent Company and became the general distributor of the two companies in Liaoning province.
A science and technology and chemical industry book gallery has been newly established in the business hall, which has more than 5000 books in the field of chemical industry, including both professional skills and basic knowledge.
  The Xiao Qiaozi chemical agent storehouse with a storage of 30000 tons, which covers 10000 square meters, is awarded as "four good storehouse" of national grade.
www.nereagent.cn /doce/intro.htm   (542 words)

  
 Chemical Reagent Calculator Download
Chemical Reagent Calculator - Assist laboratory staff in preparing Molar, Anydrous
The program allows the user to print out instructions as well as a label to fix to the preparation.
CurTiPot - Find the pH of any acid, base, salt or mixture, simulate titration curves, understand the chemical equilibrium and analyze real data with this free suite of Excel spreadsheets.
www.shareup.com /Chemical_Reagent_Calculator-download-23766.html   (451 words)

  
 Chemical Reagent Calculator 2.5 software details, description ,screenshot, reviews and download
Chemical Reagent Calculator is a usefull tool to assist laboratory staff in preparing Molar, Anydrous & percentage solutions.
CHEMICAL REAGENT CALCULATOR is a useful tool to assist technicians and laboratory staff who needs to prepare chemical solutions and reagents.
chemical calculator, reagents, solutions, chemistry, chemical, preparations, lab, laboratory, calculator
www.soft32download.com /software/Chemical-Reagent-Calculator-download-details.html   (205 words)

  
 FLOTATION MATRIX 100 to Change the Face of Chemical Reagent Selection - Mining Technology
The Reagent Selection phase includes the use of a proprietary knowledge base expert system.
Once a chemical reagent is selected, extensive Lab and Plant testing, which are a hallmark of Cytec’s superior customer service, round out the FLOTATION MATRIX 100™ process.
According to Gary Thundercliffe, global marketing manager, Mining Chemicals, Cytec Industries Inc., the recovery and grade concentrate yielded in flotation depends on a number of environmental and operational factors, and is significantly enhanced by customized reagents designed specifically for the customers’ milling process.
www.mining-technology.com /contractors/chemicals/cytec/press2.html   (519 words)

  
 Chemical Reagent Calculator 2.5 - Calculates how to make chemical solutions.
Chemical Reagent Calculator 2.5 - Calculates how to make chemical solutions.
CHEMICAL REAGENT CALCULATOR is a useful tool to assist technicians and laboratory staff who needs to prepare chemical solutions and reagents.
Share your opinion about Chemical Reagent Calculator 2.5 • Search for similar projects for sale
www.padring.com /soft/Education/Specialized/ChemicalReagentCalculator.html   (88 words)

  
 Download Chemical Reagent Calculator 2.5 Free Trial - Chemical Reagent Calculator is a tool to assist laboratory ...
Download Chemical Reagent Calculator 2.5 Free Trial - Chemical Reagent Calculator is a tool to assist laboratory technicians and scientists in preparing reagents and solutions - Softpedia
Chemical Reagent Calculator is a tool to assist laboratory technicians and scientists in preparing chemical reagents and solutions.
Softpedia guarantees that Chemical Reagent Calculator 2.5 is
www.softpedia.com /get/Others/Home-Education/Chemical-Reagent-Calculator.shtml   (403 words)

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