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Mercury Monitoring Applications

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    Analytical instruments for atomic spectroscopy

    Besides Mass Spectrometry, a further variety of analysis techniques are categorized as atomic spectroscopy. Analysis techniques which use inductively coupled plasma (ICP), such as ICP-OES and ICP-MS, are among these. With increasing environmental awareness backed by regulations, an increasingly important use of atomic spectroscopy techniques is in mercury analysis. Achieving a high mass flow control performance, e.g. high repeatability or an excellent turn-down ratio, is a prerequisite to achieve a high analyzer performance. For this, a number of Axetris customers rely on our products while designing such systems.

    By Axetris Ag based in Kaegiswil, SWITZERLAND.

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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 Toronto, ONTARIO (CANADA).

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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 Toronto, ONTARIO (CANADA).

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    Mercury monitoring for aircraft research measurement

    An examination of the literature shows that the Tekran 2537 is the choice for measurements of mercury aboard research aircraft. Several research groups in Europe and North America have used the Tekran 2537 on an aircraft platform for point source plume studies, free troposphere speciation characterization, vertical profiles, characterizing emission source regions and even the stratosphere (http://www.caribic-atmospheric.com/instrum/hg.html). Normally, the Tekran 2537 requires simple modifications for aircraft studies. Ask us to point you to past research, collaborating research groups and technical information if you are interested in mercury aircraft studies.

    By Tekran Instruments Corporation based in Toronto, ONTARIO (CANADA).

  • Using NMR to measure capillary pressure

    Capillary pressure is a critical parameter for the oil exploration and production industry, and is a common measurement performed in core analysis laboratories. However, traditional techniques such as porous plate, centrifugation and mercury injection are laborious, time consuming and expensive.

    By Oxford Instruments plc based in Abingdon, UNITED KINGDOM.

  • Determination of Mercury in Water Samples by HG-AFS

    Mercury and its sompounds are highly toxic materials and can be transferred into the human body via water; the concentration of mercury in water generally is very low. With the superior sensitivity of Aurora`s Atomic Fluorescence Spectrometer, the LUMINA 3300, direct measurement of mercury in water sample is possible.

    By Aurora Biomed Inc. based in Vancouver, BRITISH COLUMBIA (CANADA).

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