Table 2. Analytical figures of Merit of the Online ID CE/ICP–MS Method.
| compound | mass fraction of S in the compound (%) | recovery ± 2 s, n = 6 (%) | R2 | LOD of S (mg L–1) | LOD of S, (pg) | LOQ of S (mg L–1) |
|---|---|---|---|---|---|---|
| sulfate | 33.4 | 100.7 ± 3.0 | 0.9994 | 1.3 | 27.2 | 4.1 |
| albumin | 1.88 | 99.5 ± 3.2 | 0.9985 | 2.6 | 55.1 | 8.4 |
| cystine | 26.7 | 105.0 ± 6.6 | 0.9999 | 2.4 | 52.4 | 8.0 |
| methionine | 21.5 | 98.5 ± 3.4 | 0.9995 | 1.5 | 31.9 | 4.9 |