Sample
Pb
2+
and Cd
2+
Added (ng)
Lead found
(ng)
Cadmium found (ng)
Sample D4
5
4.64 ± 0.33
4.69 ± 0.38
Sample D19
5
4.88 ± 0.26
5.01 ± 0.17
Sample D20
5
5.3 ± 0.10
4.77 ± 0.19
Table 2:
Reliability studies of the Optical Biosensor.
