From: Gold determination in soil by ICP-MS: comparison of sample pretreatment methods
Standard value (ng/g) | Untreated PUF | Treated PUF | ||||
---|---|---|---|---|---|---|
Adsorption value (ng/g) | RSD (%) | Adsorption rate (%) | Adsorption value (ng/g) | RSD (%) | Adsorption rate (%) | |
0.50 | 0.43 | 9.5 | 86.0 | 0.49 | 8.8 | 98.0 |
1.00 | 0.84 | 6.8 | 84.0 | 0.97 | 9.0 | 97.0 |
5.00 | 4.05 | 4.0 | 81.0 | 4.83 | 3.0 | 96.6 |
10.00 | 7.92 | 0.6 | 79.2 | 9.57 | 2.0 | 95.7 |
50.00 | 39.31 | 3.5 | 78.6 | 47.46 | 1.2 | 94.9 |
100.00 | 77.14 | 1.9 | 77.1 | 92.58 | 1.5 | 92.6 |