Table 3 Elements present in the manuscript of Mateo Pumacahua (eighteenth century)
From: XRF elemental analysis of inks in South American manuscripts from 1779 to 1825
Element | Average concentration (ppm) | Olympus Delta Premium DP6000 LOD (ppm)d | ||
|---|---|---|---|---|
Inka | Stampb | Paperc | ||
Ca | 21,069 ± 5448 | 23,047 ± 2777 | 26,341 ± 3570 | 10–35 |
S | 30,966 ± 17,124 | 13,332 ± 2555 | 7316 ± 3632 | 50–150 |
Fe | 6324 ± 3245 | 2692 ± 456 | 1407 ± 348 | 5–20 |
Cl | 3002 ± 780 | 3148 ± 453 | 4896 ± 1476 | – |
K | 2894 ± 1131 | 1600 ± 501 | 1336 ± 270 | 20–50 |
Mn | 251 ± 12 | 258 ± 13 | 254 ± 7 | 3–7 |
Cr | 91 ± 7 | 100 ± 6 | 99 ± 3 | 2–9 |
Zn | 79 ± 32 | 110 ± 6 | 102 ± 12 | 1–3 |
Ti | 43 ± 14 | 71 ± 7 | 76 ± 40 | 5–10 |
Cu | 29 ± 22 | 43 ± 11 | 17 ± 11 | 2–6 |
V | 23 ± 3 | 30 ± 3 | 28 ± 3 | 4–10 |
Ag | 20 ± 3 | 23 ± 5 | 19 ± 3 | 5–12 |
Sr | 13 ± 4 | 16 ± 3 | 15 ± 4 | 1–2 |
Pb | 7.6 ± 3 | 53 ± 13 | 6.8 ± 2.5 | 1–4 |
As | 4.3 ± 1.1 | 20 ± 5 | 4.3 ± 1.4 | 1–3 |
Rb | 3.9 ± 0.8 | 4 ± 1 | 3.8 ± 0.4 | 1–2 |
Mo | 4.2 ± 0.6 | 3 ± 2 | 3.6 ± 0.4 | 1–2 |