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Table 1 Summary of results obtained from the scientific analysis of scrapings and cross sections of the organic coatings

From: Aiding the cleaning of four 19th-century Tsimshian house posts: investigation of museum-applied surface coatings and original polychromy

AMNH Catalog No. Sample Description Py-GC/MS Results Transmission FTIR and ATR-FTIR Results
16/565 S1 Area with milky-white UV fluorescence over black paint from killer whale Drying oil, camphor, triphenyl phosphate, carbohydrates, phthalic anhydride, and phthalates CN, organic medium, gypsum [FTIR]
S2 Area with milky-white UV fluorescence over gray paint from seal at bottom of pole Drying oil, camphor, carbohydrates, phthalic anhydride, and phthalates CN, organic medium, gypsum [FTIR]
S5 Area with dull yellow UV fluorescence over beige paint from bear at top of pole (after partial cleaning to remove upper coating layers) --- CN, organic medium, calcite, barite, gypsum, quartz, hydrocerussite, oxalates, metal carboxylates [FTIR]
16/566 S1 Area with milky-white UV fluorescence over brown paint from beaver Drying oil, camphor, carbohydrates, phthalic anhydride, and phthalates CN, organic medium, gypsum, silicates, calcium oxalates, metal carboxylates [FTIR]
S2 Area with milky-white UV fluorescence over green paint from face at bottom of pole Drying oil, camphor, triphenyl phosphate, carbohydrates, phthalic anhydride, and phthalates CN, protein, organic medium, gypsum, quartz, calcium oxalates, metal carboxylates [FTIR]
16/567 S1 Area with bright blue-white UV fluorescence over unpainted wood section at base of pole Drying oil, camphor, triphenyl phosphate, PVAcet, styrene, carbohydrates, phthalic anhydride, and phthalates PVAcet, CN, organic medium, gypsum, quartz [FTIR] / PVAcet in top fluorescent layer; organic medium in intermediate fluorescent layer [ATR-FTIR]
S2 Area with milky-white UV fluorescence over brown paint from starfish Drying oil, camphor, triphenyl phosphate, carbohydrates, phthalic anhydride, and phthalates CN, organic medium, gypsum [FTIR]
S3 Area with milky-white UV fluorescence over brown paint from tail of sculpin Drying oil, camphor, carbohydrates, phthalic anhydride, and phthalates CN, protein, organic medium, gypsum, calcium oxalates, metal carboxylates [FTIR]
16/568 S1 Area with bright blue-white UV fluorescence over unpainted wood section at base of pole Drying oil, camphor, triphenyl phosphate, PVAcet, styrene, Pinaceae resin, carbohydrates, phthalic anhydride, and phthalates PVAcet, CN, organic medium, metal carboxylates [FTIR] / PVAcet in top fluorescent layer [ATR-FTIR]
S2 Area with bright blue-white UV fluorescence over brown paint on arm of bear near bottom of pole Drying oil, camphor, triphenyl phosphate, PVAcet, carbohydrates, phthalic anhydride, and phthalates PVAcet, CN, organic medium, gypsum [FTIR]
S3 Area with milky-white UV fluorescence over brown paint on foot of bear near bottom of pole Drying oil, camphor, triphenyl phosphate, PVAcet, styrene, carbohydrates, phthalic anhydride, and phthalates PVAcet, CN, organic medium, gypsum, quartz, calcium oxalates [FTIR]