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Determination
of Methanol Emissions from Stationary Sources – USEPA Method
308 USEPA Method 308 is used for the determination of methanol emissions from specified stationary sources. A gas sample is extracted from the sampling point in the stack. The methanol is collected in deionized distilled water and adsorbed on silica gel. The sample is returned to the laboratory where the methanol in the water fraction is separated from other organic compounds with a gas chromatograph (GC) and is then measured by a flame ionization detector (FID). The fraction adsorbed on silica gel is extracted with an aqueous solution of n-propanol and is then separated and measured by GC/FID. |
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Last Update: October 25, 2006