Volatile metal(loid) elements and compounds are present in many different types of gas and liquefied gas samples, such as natural gas and biogas. Arsenic (As) is one of the most prevalent elemental impurities in such samples, and it is of interest in many industries, including gas exploitation and processing, and polymer manufacturing. In addition to its potential toxicity and effect as an environmental contaminant, As must be carefully monitored and controlled in the petrochemical and polymer industries.
This note describes a novel gas sampling system that enables simultaneous GC-ICP-MS analysis of total and speciated volatile arsenic compounds such as arsine in gas and liquefied gas samples.
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