

| Analyte | Wavelength | CRM ID | Certified Value | Preparation 1 | Preparation 2 | Dilution | Recovery 1 | Recovery 2 |
|---|---|---|---|---|---|---|---|---|
| Au, ppm | 267.595 | 238 | 2.95 | 2.99 | 2.84 | 1x | 101% | 96% |
| 242 | 8.33 | 6.95 | 7.28 | 1x | 83% | 87% | ||
| 255b | 4.08 | 3.82 | 3.77 | 1x | 94% | 92% | ||
| 256b | 7.58 | 7.61 | 7.13 | 1x | 100% | 94% | ||
| 257b | 14.17 | 14.55 | 15.42 | 1x | 103% | 94% |