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determination of mercury Applications

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    Determination of the mercury concentration in naphtha

    Introduction The mercury concentration in crude oil and petroleum products can vary in a wide range of less than 0.1 ppb to dozens ppm. Direct mercury determination in crude oil and petroleum products at the range above 5 ppb is covered by ASTM D7622-10(2015) "Standard test method for total mercury in crude oil using combustion and direct cold vapor atomic absorption method with Zeeman background correction". Mercury determination in naphtha and light petroleum products (condensate, gasoline and diesel fuel) at a...

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of mercury in mercury-containing wastes

    INTRODUCTION Mercury is widely used in chemical industry, electronic s, electric engineering, instrument making, medicine, pesticide and explosives production, etc. A number of techniques and equipment are developed for reclaiming mercury-containing waste, such as soil, sludge, stillage botto ms, slime sediments, fluorescent lamps, mercury-containing batteries.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Direct mercury determination in coal

    IntroductionMercury is one of the most toxic trace contaminant naturally occurring in the coals. During the coal combustion process at the coal-fired power plants mercury is released into the environment. To manage effectively the stack gas cleaning process, it is necessary to know the mercury content in the coal, and also in stack gas, liquid and solid wastes.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of a total mercury content in urine

    INTRODUCTION The main way of mercury removal from human body is it s urinary excretion, which is an important diagnostic medium for screening examination of population, risk group determination, and diagnostics and treatment of mercury poisoning.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Direct determination of mercury content in ambient air

    Introduction Mercury, being widespread in environment, has toxic effect on a human organism even at a low concentration. Therefore, quantitativ e determination of mercury in vari ous environments is one of the most important environmental monitoring problems.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Mercury determination in natural gas

    Introduction The natural gas is a significant source of ingres s of mercury in the environment. The typical mercury concentration in natural gas may vary from 0.01 to 200 μ g/m3 . Mercury, being present in hydrocarbon gas, initiates corrosion of pipelines and catalyst poiso ning during gas transportation and processing, and these effects have serious implications for the gas-processing industry.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of total mercury content in blood by cvaas

    INTRODUCTION Blood is one of the most complex substances for determination of the Hg content. At the same time, blood is the most important diagnostic medium used for monitoring the effect of Hg vapor on the human organism. In almost all the countries, personnel of mercury-involving production facilities are regularly examined for the Hg content in blood, which should not exceed 20–50 µg/l, whereas in the case of a person unexposed to mercury vapor the blood normally contains 1–3 µg/l of Hg.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of mercury in soil, bottom sediments, and geological materials

    INTRODUCTION Analysis of soils and bottom sediments for mercury content is one of the most common analyses in the monitoring of environmental pollution. Background mercury concentrations in these objects are 10–100 μg/kg and in the polluted areas they exceed 10,000 μg/kg.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

  • 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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    Determination of mercury in crude oil and oil products

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Direct atomic absorption mercury determination in oil and oil products

    Introduction Determination of mercury in oil and petroleum hydrocarbon is currently a vital probl em due to the fact that the regulations for the mercury content in emission s from thermal power plants are becoming ever more stringent, and mercury poisons catalysts used in oil re fining.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of the total mercury in a filtrate of wash-off samples from contaminated surfaces

    INTRODUCTION Quantitative determination of the total mercury content in filtrates of wash-off samples from the surfaces of walls, floors, equipment, and other facilities of m anufacturing areas is an effective method for the occupational safety monitoring.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Direct atomic absorption mercury determination in foodstuff and mixed feed

    Direct atomic absorption mercury determination (without any pre-treatment procedures) in food is complicated by its organics matrix. That is the reason why almost all AAS methods of mercury determination in foodstuff include sample digestion by acids.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (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...

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

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    Mercury determination in natural, surface, sea, drinking, bottled, mineral, and waste water by cvaas

    Introduction Mercury determination in natural, drinking, and waste waters is one of the most popular analyses used for environment pollution and sanitary control. Background concentrations of mercury in natural water are within several ng/l. Maximum national permissible levels for mercury in water lie in the range of 0.16–6 µg/l. For example, the following limits for mercury in drinking water are set, µg/l: 0.5 – Japan, Russia; 1 – Argentina, Australia, Brazil, China, EC; 2...

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Monitoring of mercury in ambient air

    Mercury, being widespread in environment, has toxic effect on a human organism even at a low concentration. Therefore, quantitativ e determination of mercury in vari ous environments is one of the most important environmental monitoring problems. The use of a mercury analyzer RA-915M/RA-915+/RA- 915Light with Zeeman background correction provides di rect real-time continuous determination of mercury in air from 0.5 ng/m 3 within the overall possible range of me rcury concentration in ambient air.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of heavy metals in food

    This analytical procedure is intended for measuring the content of the elements (cadmium, lead, arsenic, tin, chromium and mercury) in the samples of food products by atomic absorption spectrometry with electrothermal atomization using an “MGA-915M” Graphite Furnace AA Spectrometer. The method is based on measuring resonance radiation absorption that occurs when the radiation passes through a layer of atomic vapor in the electrically heated graphite furnace of the “MGA-915M” AA spectrometer....

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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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...

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

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    RAPID ANALYSIS OF TOTAL MERCURY IN WASTE WATERS AND PROCESS WATERS WITH ELEVATED MERCURY CONTENT USING DIRECT PYROLYSIS TECHNIQUE

    A conventional standard method of total mercury determination in water using atomic absorption spectrometry (AAS) involves preliminary sample digestion that takes from 30 minutes to 8 hours depending on the digestion conditions. The use of a mercury analyzer RA-915M/RA-915+ with Zeeman background correction in combination with PYRO-915+ pyrolysis attachment provides direct determination of mercury in process and waste waters contaminated with mercury without digestion or any other sample preparation stages. The...

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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