Table 1. Application of the Method to the Determination of Sulfur-Containing Compounds in Different Matrices and Results from Recovery Experiments.
| compound | true value | measured | recovery (%) | RSD (%, n = 5) |
|---|---|---|---|---|
| Sulfur-Containing Drugs (μM)a | ||||
| acetylcysteine | 30 | 28.7 | 95.6 | 4.8 |
| 100 | 97.2 | 97.2 | 5.6 | |
| captopril | 75 | 81.7 | 108.9 | 6.4 |
| 150 | 157.6 | 105.1 | 6.9 | |
| Pesticides (μg L–1)b | ||||
| thiram | 50 | 51.0 | 102.0 | 7.7 |
| 100 | 98.5 | 98.5 | 7.6 | |
| methamidophos | 50 | 46.5 | 93.0 | 6.8 |
| 100 | 94.7 | 94.7 | 6.5 | |
| Biothiols (μM)c | ||||
| cysteine | 30 | 28.7 | 95.6 | 6.6 |
| 75 | 73.0 | 97.3 | 5.7 | |
| Inorganic Sulfur (μM)d | ||||
| sulfide | 15 | 15.6 | 104.0 | 8.9 |
| 50 | 51.9 | 103.6 | 9.8 | |
a
Commercial drugs.
b
Methanol extracts.
c
Artificial urine solution (AUS).
d
Treated wastewater.