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Heritage Science
Fig. 5 | Heritage Science

Fig. 5

From: Identifying VOCs in exhibition cases and efflorescence on museum objects exhibited at Smithsonian’s National Museum of the American Indian-New York

Fig. 5

a GC–MS Total Ion Chromatogram (TIC) profile of efflorescence collected from Pueblo bowl (NMAI 12/8961) by SPME–GC–MS sampling. b GC–MS spectrum of the most abundant peak with retention time 20.242 min, with a 91% NIST library spectrum matching for 2,2,6,6-tetramethyl-4-piperidinol (TMP-ol) (CAS No. 2403-88-5). c Chemical structure of 2,2,6,6-tetramethyl-4-piperidinol (TMP-ol) d DART-MS spectrum of the efflorescence collected from Pueblo bowl (NMAI 12/8961) with ion peak (m/z 158.1527, [C9H19NO + H]+). e Chemical structure of Tinuvin® 770

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