Table 4.
Mean Concentration (ppb) | Odor Threshold (ppb)a | ||||
---|---|---|---|---|---|
| |||||
Patient Urine |
Patient New Pad |
Patient Worn Pad |
Normal New Pad |
||
Hydrogen sulfide | 1.37 | ND b | 0.87 | ND | 0.41 |
Methanethiol | 0.96 | 0.15 | 1.97 | ND | 0.07 |
Acetaldehyde | 47.21 | 60.29 | 79.59 | 117.80 | 1.5 |
Butyraldehyde | 14.82 | 0.93 | 13.08 | 2.94 | 0.67 |
Isovaleraldehyde | ND | ND | ND | 1.5 | 0.1 |
Nagata [20]
ND: below detection limit.