Table 4.
Concentrations of analytes in eight human tear fluid samples.
| Analyte | Mass concentration | Molar concentration | ||
|---|---|---|---|---|
| Range | Mean | Range | Mean | |
| GSH | 3.93 – 56.30 μg/ml | 25.78 μg/ml | 12.78–183.2 μM | 83.89 μM |
| GSSG | 5.78 – 21.95 μg/ml | 10.43 μg/ml | 9.44–35.83 μM | 17.02 μM |
| Cys-Gly | <7.95 – 58.67 ng/ml | 23.02 ng/ml | <44.61– 329.2 nM | 129.2 nM |
| Glu-Cys | 21.96 – 255.71 ng/ml | 124.11 ng/ml | 84.36 −982.4 nM | 476.8 nM |
| Met | 0.50 – 3.04 μg/ml | 1.48 μg/ml | 3.35 −20.37 μM | 9.92 μM |
| MeS | 0.52 – 59.89 ng/ml | 32.22 ng/ml | 3.15 −362.6 nM | 195.0 nM |
| Cyss | 43.68 – 274.33 ng/ml | 135.31 ng/ml | 181.8 −1142 nM | 563.1 nM |
| Cys | 0.05 – 1.92 μg/ml | 0.49 μg/ml | 0.43 – 15.82 μM | 4.08 μM |
| Crt | 0.48 – 1.92 μg/ml | 1.03 μg/ml | 4.29 – 16.95 μM | 9.14 μM |