Table 2 A total of 80 emission and 80 excitation spectra on 18 brazilwood paints were collected from 8 illuminated manuscripts produced during the 13th—15th c. Based on their spectral features these spectra were assembled in 3 groups
Group BW 1 | Group BW 2 | Group BW 3 | |
|---|---|---|---|
Excitation maxima | 552–561 nm | 555–562 nm | 553–564 nm |
Intensity | |||
Max | 2.2 × 105 | 3.2 × 105 | 1.7 × 105 |
Min | 9.1 × 104 | 1.0 × 105 | 9.9 × 104 |
Emission maxima | 582–586 nm | 594–602 nm | 590–600 nm |
Intensity | |||
Max | 9.5 × 104 | 8.6 × 104 | 6.2 × 104 |
Min | 3.5 × 104 | 3.0 × 104 | 2.4 × 104 |
Infrared | CaCO3 Lead White | CaCO3 CaSO4·2H2O | CaCO3 » CaSO4·2H2O |
Reconstruction | LKFK 8 | LKFK 9 | |