Table 2.
Sample | Added (nM) | Measured (nM) a | Recovery (%) |
---|---|---|---|
tap water | 2.0 | 2.1 ± 0.17 | 105 ± 0.085 |
5.0 | 4.9 ± 0.32 | 98 ± 0.064 | |
10.0 | 9.6 ± 0.62 | 96 ± 0.062 | |
river water | 2.0 | 2.1 ± 0.11 | 105 ± 0.055 |
5.0 | 5.1 ± 0.43 | 102 ± 0.086 | |
10.0 | 9.7 ± 0.65 | 97 ± 0.065 |
a Mean values and standard deviations were obtained from three independent experiments.