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Table 4 Black pigment elemental composition according to PGAA, XRF, and NAA, mg/kg

From: Comprehensive study of 12th century wall painting fragments from the St. George Cathedral of the Yuryev Monastery in Veliky Novgorod (Russia) using complementary physico-chemical methods

  PGAA XRF NAA
H 10660 ± 300   
С 637000 ± 469000   
Na    1420 ± 50
Al   66300 ± 2800  
Si 71600 ± 10300 102000 ± 2000  
P   2760 ± 380  
S   2570 ± 260  
Cl 584 ± 58   
K   7520 ± 190 4870 ± 410
Ca 370000 ± 39000 266000 ± 1000 304000 ± 55000
Sc    4.10 ± 0.12
Ti 2975 ± 417 4470 ± 290  
Cr    49.7 ± 2.3
Mn   989 ± 75  
Fe   7410 ± 170 7210 ± 440
Co    2.86 ± 0.25
Ni    6.77 ± 1.02
Cu   55.0 ± 9.0  
Zn   97.0 ± 13.0 63.8 ± 3.5
As    3.78 ± 0.17
Br    3.36 ± 0.30
Rb    12.5 ± 2.1
Sr    645 ± 43
Zr    72.3 ± 8.0
Mo    6.17 ± 1.11
Ag 1130 ± 100   
Sn    162 ± 50
Sb    1.07 ± 0.096
Cs    0.143 ± 0.007
Ba    262 ± 14
La    14.5 ± 0.7
Ce    22.2 ± 3.3
Nd    18.5 ± 2.8
Sm 7.81 ± 1.68   6.26 ± 0.75
Eu    1.46 ± 0.09
Gd 1.28 ± 0.17   
Tb    0.581 ± 0.027
Yb    1.49 ± 0.26
Lu    0.266 ± 0.029
Hf    2.35 ± 0.19
Ta    0.494 ± 0.016
W    0.444 ± 0.129
Hg    42.0 ± 1.9
Pb   823 ± 48  
Th    4.31 ± 0.16
U    1.50 ± 0.10