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mercury monitoring system Applications

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    Mercury monitoring for mercury flux measurement

    The Tekran 2537 has been used in numerous published studies to measure the deposition or evasion of mercury from natural or contaminated surfaces (i.e. flux measurements). It is anticipated that many mercury flux measurements will be needed in the future to assess the impact of climate change on mercury cycling in the environment. There are two basic ways to do mercury flux measurements. First, the dynamic flux chamber method utilizes a custom enclosure, with controlled air flow, to measure the inlet and outlet concentration over a selected surface to determine the flux over time. Alternatively, the micrometeorological gradient method uses measured concentrations at two levels above a surface. The perfect tool for both flux measurement methods is the Tekran 1110 Two Port Sampler, so the Tekran 2537 can automatically switch between two distinct sampling points. Ask us how we can help you setup a mercury flux system.

    By Tekran Instruments Corporation based in Knoxville, TENNESSEE (USA).

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    Mercury monitoring for measuring mercury content in hair

    Measurement of mercury content in hair is a convenient technique to estimate dietary exposure without having to handle tissues or bodily fluids. As the mercury present in hair is comprised of different mercury species, full speciation of the compounds is needed for complete understanding. Environment Canada published a technique where treating a basic digestion with Cd2+ in the presence of cysteine allowed analysis of inorganic mercury and total mercury using a Tekran 2600 System. Methyl mercury was then calculated by difference. Tekran has over 18 application notes available for Tekran 2600 users.

    By Tekran Instruments Corporation based in Knoxville, TENNESSEE (USA).

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    Mercury monitoring for measuring mercury speciation in air

    Tekran offers the only completely integrated, automated system for measuring mercury speciation in air. The Tekran 2537, when coupled to the Model 1130 and Model 1135 provides a continuous record of gaseous elemental mercury, gaseous oxidized mercury and particle-bound mercury. Over the past 12 years, the Tekran 2537-1130-1135 system has been the most significant tool used to advance the understanding of the fate and transport of atmospheric mercury. See the Expert’s Corner for details about international networks using the Tekran Atmospheric Mercury Speciation System.

    By Tekran Instruments Corporation based in Knoxville, TENNESSEE (USA).

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    Continuous emissions monitoring for mercury monitoring

    Waste incinerators, cement plants and power plants need good and reliable measurements of total gaseous mercury. The measurement of total gaseous mercury is a challenge due to chemical reactions and contamination. The installed systems will often require a lot of maintanence still not giving reliable results.

    By Opsis AB based in Furulund, SWEDEN.

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    Mercury monitoring for isotopic abundance by the ICP-MS

    Studies of real-world ecosystems are very complex. Mercury species inter-conversion as well as mercury deposition and evasion are constantly occurring. One technique to help sort out the processes is to trace reactions using natural Hg isotopes. Either by enriching a system with a particular isotope or determination of isotopic ratios as a technique of source identification, isotopes are a powerful tool for investigation. The Tekran 2600 Total Mercury and Tekran 2700 Methyl Mercury systems are designed to couple to an ICP-MS for mercury quantification by CVAFS and isotopic abundance by the ICP-MS.

    By Tekran Instruments Corporation based in Knoxville, TENNESSEE (USA).

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    Processing of LCD screens

    The safe extraction of valuable raw materials: robots automatically dismantle monitors containing mercury, while protecting workers’ health at the same time. According to initial projections, around three million LCD screens will be recycled in Germany in 2016. However, their backlighting system often contains mercury, which means they are classified as 'hazardous waste' in accordance with the EWC, and as 'Collection Group 3' in accordance with the Electrical and Electronic Appliance Law. They also contain valuable raw materials, such as metals and plastics, which have to be recovered in such a way, that the environment is not harmed. However, recycling specialists, Erdwich Zerkleinerungssysteme GmbH, have now developed an alternative: The company from Kaufering has developed an automatic processing system that enables mercury and other valuable raw materials to be easily extracted and recycled in an environmentally-friendly way.

    By Erdwich Zerkleinerungssysteme GmbH based in Kaufering, GERMANY.

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