The Ontario Hydro sampler is used for the Ontario Hydro method (determination of elemental mercury, mercury oxide, particulate mercury and total mercury in flue gas emissions from fixed sources of coal-fired coal) The sample in the flue gas is extracted by heating the sampling probe (120 ℃ or flue gas temperature, whichever is higher). The particulate mercury is collected on the front-end filter membrane, and the mercury oxide is collected into the subsequent acidic potassium chloride solution, and then the oxygen is filtered by hydrogen peroxide
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