Samples | [Cd(II)] taken (mg mL−1) | Intra-day | Inter-day | ||||||
---|---|---|---|---|---|---|---|---|---|
[Cd(II)] found (mg mL−1) | Recovery (%) | SD | RSD* (%) | [Cd(II)] found (mg mL−1) | Recovery (%) | SD | RSD** (%) | ||
Pure solution | 0.25 | 0.247 | 98.8 | 0.003 | 1.26 | 0.247 | 98.8 | 0.005 | 2.02 |
0.30 | 0.296 | 98.6 | 0.007 | 2.36 | 0.296 | 98.6 | 0.002 | 0.67 | |
River water | 0.25 | 0.249 | 99.6 | 0.007 | 2.81 | 0.247 | 98.8 | 0.003 | 1.21 |
0.30 | 0.294 | 98.0 | 0.005 | 1.70 | 0.299 | 99.6 | 0.004 | 1.34 | |
Industrial wastewater | 0.25 | 0.243 | 97.2 | 0.006 | 2.47 | 0.245 | 98.0 | 0.006 | 2.45 |
0.30 | 0.293 | 97.6 | 0.008 | 2.73 | 0.296 | 98.6 | 0.008 | 2.70 | |
Rechargeable battery waste | 0.25 | 0.248 | 99.2 | 0.006 | 2.42 | 0.247 | 98.8 | 0.006 | 2.43 |
0.30 | 0.291 | 97.0 | 0.005 | 1.70 | 0.294 | 98.0 | 0.001 | 0.34 | |
Plant foodstuff (carrot) | 0.25 | 0.243 | 97.2 | 0.003 | 1.23 | 0.245 | 98.0 | 0.009 | 3.67 |
0.30 | 0.292 | 97.3 | 0.004 | 1.37 | 0.293 | 97.6 | 0.006 | 2.05 | |
Fish tissue | 0.25 | 0.245 | 98.0 | 0.004 | 1.63 | 0.248 | 99.2 | 0.003 | 1.21 |
0.30 | 0.293 | 97.6 | 0.005 | 1.70 | 0.298 | 99.3 | 0.006 | 2.01 |