Table 3.
Comparison of the performance of the procedure with other methods applied to the determination of Pb by hydride generation
| Technique | Medium | Matrix | Concentration (μ g mL−1) | R(%) | LOD (μg L−1) | Ref.# |
|---|---|---|---|---|---|---|
| HCl | This work | |||||
| HG–ICPMS | K3Mn(CN)6 | Cu(II) | 0.1 | 92 | 0.008 | |
| HG–ICPMS | Cu(II) | 0.5 | 90 | 0.003 | 15 | |
| HCl–H2C2O4 | Co(II) | 0.5 | 91 | |||
| k3Fe(CN)6 | Ni(II) | 0.5 | 91 | |||
| HG–ICPMS | HNO3–H2O2 | Freshwaters | – | 130 | 0.2 | 16 |
| Seawater | 89 | |||||
| 20% NaCl | 41 | |||||
| HG–ID–ICPMS | HNO3–H2O2 | Freshwatera | – | 100 | 0.02 | 16 |
| Seawater | 99 | |||||
| 20% NaCl | 102 | |||||
| HCl | ||||||
| HG–ICPAES | K3Fe(CN)6 | Cu(II) | 1.0 | 72 | 0.1 | 17 |
| FI–HG–ICPMS | HCl–H2O2 | Cu(II) | 0.1 | 36 | 0.04 | 18 |
| Fe(III) | 0.1 | 41 | ||||
| Ni(II) | 0.5 | 93 | ||||
| H2C2O4 | 0.02 | 99 | 0.007 | 26 | ||
| HG–ETV–ICPMS | (NH4)2Ce(NO3)6 | Cu(II) | 0.1 | 64 | ||
| HG–ETV–ICPMS | HCl | Lakewaterb | – | 98 | 0.07 | 32 |
| K3Fe(CN)6 | ||||||
| HG–ICPAES | HCl | Cu(II) | 1.0 | 50 | 0.7 | 43 |
| K3Fe(CN)6 | Fe(III) | 1.0 | 92 |
a
SRM 1623, NIST Freshwater certified reference material.
b
NWRI TM-28.3 certified reference material (trace elements fortified water from Lake Ontario), (5-fold diluted).