Table 3.
Comparison of refractory elements in the antibacterial and non-antibacterial French clay samples. Highlighted elements are those removed by heating above 550°C.
| Element | CsAg02 ppm |
CsAr02 ppm |
|---|---|---|
| 23Na | 10800 | 1290 |
| 24Mg | 13750 | 10100 |
| 39K | 24000 | 3110 |
| 55Mn | 405 | 203 |
| 56Fe | 44750 | 56300 |
| 63Cu | 31.3 | 23.7 |
| 66Zn | 160 | 104 |
| 69Ga | 30.5 | 23.5 |
| 72Ge | 1.8 | 2.6 |
| 75As | 43.3 | 5.5 |
| 77Se | 1.0 | 0.1 |
| 85Rb | 53 | 43 |
| 88Sr | 198 | 145 |
| 89Y | 13.5 | 5.7 |
| 90Zr | 53.8 | 85.8 |
| 93Nb | 11.5 | 8.7 |
| 95Mo | 0.8 | 0.4 |
| 109Ag | 1.3 | 1.1 |
| 111Cd | 0.2 | 0.3 |
| 118Sn | 8.3 | 3.2 |
| 123Sb | 2.3 | 0.7 |
| 133Cs | 13.3 | 5.2 |
| 138Ba | 100 | 226 |
| 139La | 16.3 | 8.4 |
| 140Ce | 43.0 | 19.8 |
| 141Pr | 5.0 | 2.2 |
| 146Nd | 18.5 | 8.3 |
| 147Sm | 4.0 | 1.9 |
| 153Eu | 0.8 | 0.5 |
| 157Gd | 4.0 | 1.9 |
| 159Tb | 0.8 | 0.3 |
| 163Dy | 3.3 | 1.6 |
| 165Ho | 0.5 | 0.3 |
| 166Er | 1.8 | 1.1 |
| 169Tm | 0.3 | 0.2 |
| 172Yb | 1.5 | 1.1 |
| 178Hf | 2.0 | 3.2 |
| 181Ta | 2.5 | 1.1 |
| 182W | 3.3 | 1.4 |
| 197Au | 1.3 | 0.1 |
| 205Tl | 1.3 | 0.8 |
| 208Pb | 32.8 | 18.0 |
| 209Bi | 1.3 | 0.1 |
| 232Th | 13.5 | 4.2 |
| 238U | 9.0 | 3.2 |