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atomic absorption spectrometry Applications

  • 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).

  • 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).

  • 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 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).

  • 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).

  • 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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