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Accuracy for the Measurement of SFN and Four SFN Conjugates at Four Concentrations in Human Urine
| ng/mL urine (% of spike recovered) | ||||
|---|---|---|---|---|
| SFN | 632 (101) | 1248 (100) | 2513 (101) | 5044 (101) |
| SFN-GSH | 1.7 (70) | 3.5 (71) | 8 (83) | 20 (99) |
| SFN-Cys-Gly | 2.3 (94) | 4.6 (93) | 10 (96) | 20 (100) |
| SFN-Cys | 564 (90) | 1132 (91) | 2337 (93) | 4777 (96) |
| SFN-NAC | 549 (88) | 1154 (92) | 2345 (94) | 4869 (97) |
