nitrate analysis News

  • Nitrate Reductase

    A proposed new ASTM International test method will present a means to perform nitrate analysis of water without the use of hazardous chemicals. WK27289, Test Methods for Nitrite-Nitrate in Water by Nitrate Reductase, is being developed by Subcommittee D19.05 on Inorganic Constituents in Water, part of ASTM International Committee ...


    By ASTM International

  • Models simulate nitrate dynamics in Garonne, Southwest France

    The over-enrichment of fresh, transitional, and marine waters with nitrogen (N) can lead to problems associated with eutrophication, such as a change in species composition of aquatic plants and nuisance algal blooms. In this context, dynamic models of flow and water quality are required to aid the implementation of the Water Framework Directive and to understand the impacts of environmental ...

  • Enzyme-based nitrate determination receives USGS Standard Method designation

    RECOMBINANT PROTEIN TECHNOLOGY for GREEN ANALYTICAL CHEMISTRY:  USGS Standard Methods I-2457-11 and I-2458-11  Analytical chemistry for environmental monitoring often requires hazardous reagents.  NECi’s enzyme-based nitrate reagents replace cadmium reduction with reagent-grade, environmentally benign enzymes.  The resulting nitrite is determined by standard ...


    By NECi Superior Enzymes

  • Webinar - NECi Presents: Enzymatic Nitrate Quantitation Using Discrete Analyzer Technology

    NECi will be presenting nitrate analysis by nitrate reductase during a webinar November 5th from 12:00pm-1:00pm.  Vice President of NECi, Ellen R. Campbell, will be featured in a presentation during the webinar on Analytical Grade Enzymes, specifically Nitrate ...


    By NECi Superior Enzymes

  • ASTM D843 - 06(2011)e1 standard specification for nitration grade Xylene

    This specification covers nitration grade xylene. The nonaromatic hydrocarbons, acid wash color, copper corrosion, appearance, distillation range, initial distillation temperature, and dry point of nitration grade xylene shall be tested to meet the requirements prescribed. This abstract is a brief summary of the referenced standard. It is informational only ...


    By ASTM International

  • ASTM C799 - 12 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions

    Uranyl nitrate solution is used as a feed material for conversion to the hexafluoride as well as for direct conversion to the oxide. In order to be suitable for this purpose, the material must meet certain criteria for uranium content, isotopic composition, acidity, radioactivity, and impurity content. These methods are designed to show whether a given material meets the specifications for these ...


    By ASTM International

  • Enzyme Based Nitrate Determination Method for Wastewater Reaches First Step in EPA Approval

    The U.S. Environmental Protection Agency (EPA) has determined that The Nitrate Elimination Company, Inc. (NECi) Method N07-0003 “Method for Nitrate Reductase Nitrate-Nitrogen Analysis” meets all requirements for measurement of nitrate and combined nitrate-nitrite in wastewater. Enzyme-based nitrate analysis will be recommended for inclusion in the list of 40 CFR Part 136 in ...


    By NECi Superior Enzymes

  • SEAL Analytical focuses on reliable high-throughput analysis

    The SEAL Analytical booth (3831, 3931) at Pittcon 2016 will provide visitors with an opportunity to see the latest technologies in sample digestion systems and colorimetric nutrient analysis instruments. SEAL will feature their range of new AQ automated discrete analysers and segmented flow analyzers - for high-speed, greater capacity, improved reproducibility and greater flexibility. SEAL will ...

  • EPA analysis shows decrease in 2009 toxic chemical releases in Maine (ME)

    EPA’s most recent Toxic Release Inventory (TRI) data is now available for the reporting year of 2009. TRI reporting provides Americans with vital information about their communities by publishing information on toxic chemical disposals and releases into the air, land and water, as well as information on waste management and pollution prevention activities in neighborhoods across the ...

  • EPA analysis shows reduction in 2009 toxic chemical releases in Vermont (VT)

    EPA’s most recent Toxic Release Inventory (TRI) data is now available for the reporting year of 2009. TRI reporting provides Americans with vital information about their communities by publishing information on toxic chemical disposals and releases into the air, land and water, as well as information on waste management and pollution prevention activities in neighborhoods across the ...

  • EPA analysis shows reduction in 2009 toxic chemical releases in Connecticut

    EPA’s most recent Toxic Release Inventory (TRI) data is now available for the reporting year of 2009. TRI reporting provides Americans with vital information about their communities by publishing information on toxic chemical disposals and releases into the air, land and water, as well as information on waste management and pollution prevention activities in neighborhoods across the ...

  • A2 Technologies announces innovative portable FT-IR solution for real-time oil analysis

    Danbury, CT - A2 Technologies, the innovator and manufacturer of portable Fourier Transform Infrared (FT-IR) spectrometers announces the availability of Real-time Oil Analysis and Reporting (ROARTM) for its portable Mobility FT-IR spectrometer series. The combination of A2 Technologies’ powerful ROAR software and the innovative diamond-based oil sample measurement Mobility FT-IR spectrometers, ...


  • ASTM C968 - 12 Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets

    The test methods in this method are designed to show whether a given material is in accordance with Specification C922. 1. Scope 1.1 These test methods cover procedures for the analysis of sintered gadolinium oxide-uranium dioxide pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order ...


    By ASTM International

  • Photometry Compendium – Episode 4 is live!

    A key advantage of photometry is the availability of portable instruments, making the technique suitable for fast analysis in the field. The 4th video on www.photometry-compendium.com shows the use of the photometer in environmental analysis. Environmental monitoring is of growing importance in view of the European Water Framework Directive. A ...


    By WTW - a xylem brand

  • NECi at NEMC 2014

    The Nitrate Elimination Company, Inc. (NECi), will be attending the National Environmental Monitoring Conference to be held at The Hyatt Regency in Washington, DC August 4th-8th.   NECi will be presenting nitrate analysis by nitrate reductase during the Environmental Measurement Symposiom Technology Showcase on Tuesday, August 5th from 5:00pm-7:30pm.  Visit the NECi table to learn more ...


    By NECi Superior Enzymes

  • Photometry Compendium – Episode 5 is live!

    The 5th video on www.photometry-compendium.com  shows the use of the photometer in environmental analysis. Environmental monitoring is of growing importance in view of the European Water Framework Directive. A regular analysis gives a fast and reliable overview of the chemical, biological and environmental condition of your ...


    By WTW - a xylem brand

  • Gas analyser helps reveal NITRABAR success

    A portable FTIR multiparameter gas analyser from Quantitech is helping researchers at the University of Strathclyde to prove the efficacy of a novel technique ('NITRABAR' - an EC LIFE Environment Project) that helps remove nitrate pollution from groundwater. The NITRABAR system uses permeable reactive barrier technology and consists of a trench containing a mixture of natural materials, which ...


    By Quantitech Ltd

  • HACH LANGE launches new UV-VIS Spectrophotometer

    In addition to the latest process monitoring equipment, the HACH LANGE stand at WWEM 2012 (No. 94/95/96) will also feature some of the company’s latest innovations in laboratory analysis including pocket colorimeters, portable water quality meters and sophisticated UV-VIS spectrophotometers such as the new DR 3900. The DR 3900 is fully automated and offers extremely high levels of accuracy, ...


  • SEAL launches new range of digestion blocks

    SEAL Analytical will use WWEM 2016 to launch a new range of digestion blocks that it expects to “sell like hot cakes.” The new ‘SmartBlock II’ range and their sample vials are all manufactured by SEAL under the Thomas Cain brand. “This is important,” says SEAL President Stuart Smith. “By manufacturing the consumables we can guarantee their quality. The ...

  • HPR-40 MIMS System Assists in Denitrification Studies

    Denitrification is the process carried out by bacteria that converts nitrites and nitrates to nitrogen, nitric oxide and nitrous oxide gases. Two of these gases have been linked with ozone layer depletion and global warming. Denitrification is an anaerobic process and occurs in environments where oxygen levels are depleted, such as within soils and groundwater. The Hiden HPR-40 membrane inlet ...


    By Hiden Analytical

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