Table 3 Elemental composition of arsenic unexposed and exposed CASp2b beads.
Elements | Arsenic unexposed CASp2b beads | Arsenic exposed CASp2b beads | ||
|---|---|---|---|---|
Weight % | Atomic % | Weight % | Atomic % | |
C | 29.6 | 41.9 | 6.7 | 13.1 |
O | 40.3 | 42.9 | 30.9 | 45.2 |
Na | 4.8 | 3.6 | 5.8 | 5.9 |
P | 5.9 | 3.2 | 17.1 | 12.9 |
Cl | 3.3 | 1.6 | 6.1 | 4.0 |
K | 4.6 | 2.0 | 25.5 | 15.3 |
Ca | 10.9 | 4.6 | 3.6 | 2.1 |
Cu | 0.6 | 0.2 | 1.3 | 0.5 |
As | ND* | ND* | 2.9 | 0.9 |
