4F - S04 - Combustion Infrared Detection
A 0.2 g sample is combusted in a resistance furnace at 550 °C in a pure oxygen environment. During combustion, sulphur-bearing elements are reduced, releasing sulphur, which binds with oxygen to form SO2. Sulphur is measured as sulphur dioxide in the infrared cell. An Eltra CS-2000 or a Leco CNS 2000 is used for analysis.
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Analysis
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Method
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Detection Limit
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SO4
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Infrared
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0.3%
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