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Heritage Science

Table 1 Characterization of NMAH celluloid dentures (MG.M -09686 set) by handheld Raman, µFTIR and XRF

From: Safeguarding our dentistry heritage: a study of the history and conservation of nineteenth–twentieth century dentures

Object

NMAH description

Handheld Raman

µFTIRa

XRF

Dental plate

Tooth

Dentures; donated by the celluloid corporation

Celluloid: 649, 710, 858, 918, 1124, 1284, 1377, 1453, 1642, 1722 cm−1

Phthalate: 1040, 1579, 1597, 1722 cm−1

Porcelain: 460 cm−1; broad band between 1100 and 2200 cm−1

Celluloid: 693, 750, 840, 1070, 1160, 1278, 1374, 1655, 1721, 2878, 2930, 2963 cm−1

Degree of substitution: 1.98

Zn and Hg

Celluloid: 650, 710, 861, 914, 1124, 1284, 1377, 1451, 1642, 1723 cm−1

Phthalate: 1040, 1579, 1597, 1723 cm−1

Not analyzed

Celluloid: 698, 750, 845, 1070, 1160, 1278, 1374, 1655, 1720, 2878, 2930, 2963 cm−1

Degree of substitution: 1.92

Zn and Hg

Celluloid: 650, 710, 857, 918, 1124, 1284, 1377, 1450, 1642, 1725 cm−1

Phthalate: 1040, 1579, 1597, 1725 cm−1

Not analyzed

Celluloid: 698, 750, 843, 1070, 1160, 1280, 1374, 1655, 1722, 2878, 2932, 2963 cm−1

Degree of substitution: 2.11

Zn and Hg

  1. aQuantification of cellulose nitrate degree of substitution (DS) was performed using an infrared calibration curve, developed by Nunes et al. [62]. Infrared spectra are showed in Additional file 1: Figure S8
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