Table 2 Cr(III) detection in water samples (n = 3)
Sample | Spiked concentration (μmol/L) | Measured concentration (μmol/L) | Recovery (%) | RSD (%) |
|---|---|---|---|---|
Tap water | 5.00 | 5.76 | 104.45 | 0.21 |
10.00 | 9.96 | 94.74 | 0.52 | |
15.00 | 14.72 | 94.86 | 0.45 | |
River water | 5.00 | 5.59 | 106.20 | 0.20 |
10.00 | 9.62 | 93.68 | 0.74 | |
15.00 | 15.05 | 98.65 | 0.32 |