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ASTM D7550 - STANDARD TEST METHOD FOR DETERMINATION OF AMMONIUM, ALKALI AND ALKALINE EARTH METALS IN HYDROGEN AND OTHER CELL FEED GASES BY ION CHROMATOGRAPHY Organization: ASTM
Date: 2009-09-01
Description: It has been successfully applied to other types of gaseous samples including air, engine exhaust, and landfill samples. An ion chromatograph/conductivity detector (IC/CD) system is used to determine cations. Sensitivity from low part per billion (ppb, μg/l, μg/kg) up to part per million (ppm, mg/l, mg/kg) concentration are achievable dependant on the amount of hydrogen or other fuel cell gas sampled.

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