Table 3. Analytical Response Characteristics of the Trap Method and the GFAAS Method.
Pt-coated W-coil HGAAS | GFAAS | |
---|---|---|
LOD, ng L–1 | 3.3 | 217.3 |
LOQ, ng L–1 | 11.0 | 724.4 |
RSD% (n = 11) | 2.3 | 3.5 |
linear range, μg L–1 | 0.01–10.0 | 5.0–200.0 |
C0, ng L–1 | 21.3 | 691.8 |
calibration equationa | y = 0.2029[Pb] + 0.0344 | y = 0.0058[Pb] + 0.0221 |
sample volume, mL | 6.83 | 0.01 |
trapping time, s | 90 |
y is absorbance and [Pb] is concentration of Pb in μg L–1.