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 Toronto, ONTARIO (CANADA).
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. The concentration of the elements is determined from the integrated analytical signal and is calculated using a preset calibration graph. The samples of food products are digested prior to analysis in accordance with standard methods.
By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).
The process to reduce the amount of microorganisms in water, by means of ultraviolet light is called “ultraviolet disinfection”. It is used in all kinds of water to reduce the amount of microorganisms such as bacteria, protozoa, viruses, fungi, algae. Ultraviolet (UV) light is a natural part of sunlight, whereas the short wavelengths are absorbed by the protecting ozone layer. UV lamps designed for water disinfection use a gas mixture containing the element mercury (Hg). The Mercury vapour is an advantageous gas for UV disinfection applications because it emits light in the germicidal (‘germs killing’) wavelength range (UVC and UVB).
By bestUV BV based in Best, NETHERLANDS.
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