| Sample ID |
Final color |
Peak wavelength (nm) |
Absorbance |
| Salivary amylase (400 ppm) |
colorless |
282 |
0.0988 |
| Pancreas amylase (400 ppm) |
colorless |
N.Aa |
N.A |
| Cat (feline) saliva |
colorless |
N.A |
N.A |
| Dog (canine) saliva |
colorless |
N.A |
N.A |
| Human semen |
colorless |
N.A |
N.A |
| Human blood |
colorless |
N.A |
N.A |
| Human urine |
colorless |
203 |
-0.1567 |
| Porcine (pig) urine |
colorless |
223 |
1.2935 |
| Bull urine |
colorless |
237 |
0.3429 |
| Canine urine |
colorless |
237 |
1.2374 |
| Stallion (horse)urine |
colorless |
236 |
0.9316 |
| Feline urine |
colorless |
236 |
0.9359 |
|
| a N.A – no peak λ was observed or the peak λ was beyond the detection limit of
UV-VIS |
| Table 1: Results of the absorbance of biological samples mixed with water. |