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Tests using the Thermogravimetric Analysis (TGA) techniques showed this approach to be a relatively simple and rapid method for assessing the affinity of trace contaminants for a solid amine, CO2 sorbent. Regenerative CO2 sorbents are applicable to many space systems air revitalization applications for removal of CO2. Sorbents may be chemically non-specific as regards reversible adsorption-desorption, chemicals other than CO2 can be regeneratively removed from spacecraft air. These other chemicals, present in trace amounts, may also interfere with the primary CO2 removal function. TGA test procedures were developed to determine adsorption-desorption behavior of trace contaminants on a regenerative solid amine sorbent: Hamilton Standard, material - C (HS-C).