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The m/z 30 trace for EGA of three nitrate species, calcium nitrate tetrahydrate [Ca(NO3)2•4H2O], iron(III) nitrate nonahydrate [Fe(NO3)3•9H2O], and magnesium nitrate hexahydrate [Mg(NO3)2•6H2O] run on a laboratory SAM-like system compared with RN, JK, and CB SAM experiments. The release profile at RN-4 is most consistent with the two-step decomposition of Fe(NO3)3, suggesting that Fe-nitrate may be a component of the RN sample.
