Sample | Spiked (µM) | Found (mean ± SD, µM) with our method | Found (mean ± SD, µM) with AAS | Recovery (%) | RSD (%) |
---|---|---|---|---|---|
Mineral water | 0 | 8.44 ± 0.01 | 8.38 ± 0.03 | 100.7 | 5.09 |
52.8 | 53.22 ± 0.01 | Not checked | 100.8 | 2.90 | |
105.6 | 95.60 ± 0.01 | Not checked | 90.5 | 2.92 | |
158.4 | 149.71 ± 0.02 | Not checked | 94.5 | 4.67 | |
211.2 | 213.91 ± 0.03 | Not checked | 101.2 | 5.27 | |
264 | 252.50 ± 0.03 | Not checked | 95.6 | 4.34 | |
316.8 | 311.21 ± 0.04 | Not checked | 98.2 | 5.42 | |
Tap water | 0 | 10.66 ± 0.01 | 10.75 ± 0.02 | 99.16 | 1.85 |
52.8 | 57.84 ± 0.03 | Not checked | 109.5 | 3.02 | |
105.6 | 98.60 ± 0.02 | Not checked | 93.3 | 2.81 | |
158.4 | 148.88 ± 0.03 | Not checked | 93.9 | 3.77 | |
211.2 | 194.99 ± 0.04 | Not checked | 92.3 | 4.17 | |
264 | 261.89 ± 0.02 | Not checked | 99.2 | 2.33 | |
316.8 | 381.75 ± 0.02 | Not checked | 101.6 | 2.80 |