Table 1 The results of AA calibration for measurement of Pb2+
Concentration of Pb2+ (ppm) | No. of replicates | Mean value of signal | S D |
|---|---|---|---|
0.0 | 20 | 0.0037 | 0.01108 |
5.0 | 5 | 0.1718 | 0.00227 |
10.0 | 5 | 0.3312 | 0.00368 |
25.0 | 5 | 0.8526 | 0.00225 |
50.0 | 5 | 1.7070 | 0.00574 |
Concentration of Pb2+ (ppm) | No. of replicates | Mean value of signal | S D |
|---|---|---|---|
0.0 | 20 | 0.0037 | 0.01108 |
5.0 | 5 | 0.1718 | 0.00227 |
10.0 | 5 | 0.3312 | 0.00368 |
25.0 | 5 | 0.8526 | 0.00225 |
50.0 | 5 | 1.7070 | 0.00574 |