soil nitrate test News

  • 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

  • Water well owners should check water periodically for bacteria, nitrate

    Bacteria and nitrate are widespread in the environment, so every household water well owner should regularly test their water to make sure no health risk exists, the National Ground Water Association recommended today. While most bacteria found in water do not cause disease, disease-causing bacteria called pathogens can exist in well water given the right circumstances, NGWA said. Nitrate is not ...

  • Nitrogen soil tests - Do they always reflect what is going on?

    Do soil tests always reflect what’s going on? Emphatically, NO. The usefulness of nitrogen (N) soil testing is frequently a topic of discussion in both academic and farming circles. Those for the negative generally cite variability involved in sampling, lack of analytical laboratory accuracy and/or precision and lack of response calibration as factors that influence their position. While they ...

  • EPA and four Yakima Valley dairies reach agreement to reduce nitrate in local groundwater

    The U.S. Environmental Protection Agency has reached legal agreements with four Yakima Valley dairies that will help reduce nitrate in area groundwater and nearby drinking water wells. “This is good news, especially for those working locally to protect Yakima Valley groundwater,” said EPA Regional Administrator Dennis McLerran, in Seattle. “By working constructively with us in ...

  • International Journal of Soil, Sediment and Water features

    Field tests for the detection of lead in soil are not frequently accepted, since the tests are rather cumbersome or not reliable for screening determinations. Recently, we developed the LEADQuick field test kit for the detection of lead in water with 3 #22;g/L sensitivity. T his test is further modified to detect lead in soil with a sensitivity 0.03 #22;g. We developed an extraction protocol ...

  • Technika Introduces Digital Soil Moisture Pen

    Probe your soil (or similar material) with the simple-to-use Digital Soil Moisture Pen – LUPMS714. The pen has a large 1.25” digital display that enables highly accurate, high resolution readings. It also features a hold and min-max function, and indicates when the batteries need to be replaced. The Digital Soil Moisture Pen comes in a portable and durable water resistant ABS-plastic housing. ...


    By Sper Scientific

  • Free Webinar: Optimizing Soil Health by Managing Nutrients

    With today's challenges, it's becoming increasingly important to practice land stewardship, protect water quality, and ensure food security.  Maintaining soil health is crucial for increased crop productivity, preventing nutrient runoff, and decreasing costs of crop inputs.  One of the first steps in managing soil health is knowing current nutrient levels ...


    By NECi Superior Enzymes

  • Silver nanoparticles in sewage sludge harmful to soil microorganisms

    Recent research has found that silver nanoparticles in sewage sludge, which is used on agricultural land as a fertiliser, can be toxic to soil microorganisms. The researchers calculated that a maximum of 30mg of silver nanoparticles per kilogram of sludge can be applied to land before harm occurs, based on typical application rates in Germany of five tons per hectare of farmland every three ...

  • Testing the water is important for household well owners

    The National Ground Water Association recommends household well owners test their water at least annually for bacteria, nitrate, and any contaminants of local concern. More frequent testing should be considered if: There is a change in the taste, odor, or appearance of the well water, or if a problem occurs such as a broken well cap, inundation by floodwaters, or a new contamination ...

  • 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 ...

  • Bringing life back to dead zones

    Dead zones — those regions that can be found in the Great Lakes, Chesapeake Bay, and even the Gulf of Mexico — are a serious problem for U.S. waterways. These hypoxic zones, the result of excess nitrogen and phosphorus run off, can lead to algae blooms that can stifle aquatic life. Regulators are doing their part to reduce these dead zones by mandating the decrease of nutrient runoff ...

  • Monitoring diffuse pollution in EU river catchment areas

    In recent decades, discharges of pollutants from waste water treatment plants and industry have been successfully identified and in many cases reduced, but assessing inputs of diffuse pollution from land, and the degree of retention of pollutants, such as nitrogen and phosphorus, within surface water systems is harder to achieve. A recent study has compared different methods used to estimate ...

  • Aerobic cometabolism of tetrachloroethylene (PCE)

    Tetrachloroethylene (PCE) is a problem contaminant because of its widespread use, potential toxicity and persistence in the environment. Like other chlorinated solvents, remediation of PCE in soil and ground water has proven to be very difficult. While there has been has been widespread success under anaerobic conditions, the application of bioremediation under aerobic conditions has not been as ...


    By CL Solutions, LLC

  • New compact discrete nutrient analyzer saves lab time, space & money

    Laboratory instrumentation manufacturer SEAL Analytical has launched the 'AQ1' discrete analyzer which automatically tests multiple samples in discrete reaction vessels and is ideal for laboratories with moderate workloads requiring varied tests on different samples and for those that need fast individual results. The AQ1 is supplied with standard methods to USEPA, ASTM, ISO and other ...

  • Silver nanoparticles could pose risk to aquatic ecosystems

    Silver nanoparticles are toxic to common bacteria at concentrations found in many aquatic environments across the globe, new research has found. Bacteria often form a key part of ecosystems and these impacts may be felt by the entire system, the researchers warn. Silver nanoparticles are between one and a hundred nanometres (nm) in size and are now used for their antimicrobial action in a wide ...

  • 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 ...

  • New technology makes segmented flow analyzer compact and easy-to-use

    Building on its reputation for innovation, SEAL Analytical has launched the 'AA1' – a fully automated analyser employing new technology based on segmented flow analysis for rapid, accurate, precise analysis of parameters such as Ammonia, Phosphate, Nitrate, Nitrite, Total Nitrogen, Total Phosphorous and Chloride. Typical applications include water, wastewater, soil, plant, fertilizer, food ...

  • SEAL Analytical unveils new automated analyzer at Pittcon 2015

    The SEAL Analytical booth (4116 & 4117) at Pittcon 2015 will provide visitors with an opportunity to see the latest technologies in both automated discrete analyzers and segmented flow analyzers. A major feature of the SEAL booth will be the new AQ400 automated discrete analyzer. The AQ400, manufactured by SEAL in the US, has been designed to provide even greater speed and capacity, with ...

  • Award recognises NLS recycling achievements

    HACH LANGE has presented the National Laboratory Service (NLS) with a silver bar made from recycled chemical reagents, in recognition of the organisation’s achievements in waste minimisation. Accepting the ingot on behalf of the NLS laboratory in Nottingham, inorganics team leader Richard Yates said “Tiny quantities of silver are employed in the tests that we conduct for COD - ...


  • SEAL Analytical expands US manufacture

    The laboratory instrument manufacturer SEAL Analytical has transferred the production of its market leading automated discrete analyzers, the AQ1 and AQ2, to the company’s facility in Mequon, USA. The move follows the acquisition of a block digestion business from Aim Lab Automation Technologies Pty Ltd. SEAL’s President Stuart Smith said: “Digestion is an essential part of the ...

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