Table 2.
Comparison of the figures of merit of the developed methods with different sorbents reported in the literature
| Matrix | Extraction method/Instrument used | Adsorbent | Adsorption capacity (mg of Pd2+ ions/g of the adsorbent) | EF | LOD (µg/L) |
Linear range (µg/L) |
RSD (%) | Ref. |
|---|---|---|---|---|---|---|---|---|
| Water | SPE/UV1 | UiO-66-Pyta2 | 294.1 | NM3 | 1.9 | NM | 1.7 | [50] |
| Sulfide ores | SPE/FIA-FAAS4 | SSPS5 | NM | NM | 5.0 | NM | 0.7 | [51] |
| Road dust | MSPE/FAAS6 | MGOSDN7 | 41.4 | 250 | 0.0012 | 0.003-2.5 | 2.2 | [52] |
| Soil | D-µ-MSPE/FAAS8 | MN-SDS/5-Br-PDA9 | NM | NM | 0.12 | NM | 1.8 | [53] |
| Water and wastewater | SPE/UV | Fe3O4@SiO2@-MIP-202 | 194.52 | 245 | 1.05 | 10.00-1500.00 | 1.8 | This work |
1SPE/UV: Solid-phase extraction/spectrophotometer; 2Pyta: Pyridyltriazol; 3NM: not mentioned; 4SPE/FIA-FAAS: Solid-phase extraction/flow injection analysis-flame atomic absorption spectrometry; 5SSPS: 4-(n-octyl)diethylenetriamine and hyper cross-linked polystyrene; 6MSPE/FAAS: Magnetic solid phase extraction/flame atomic absorption spectrometry; 7MGOSDN: Magnetic graphene oxide silicon dioxide nanocomposite; 8D-µ-MSPE/FAAS: Dispersive micro magnetic solid phase extraction/flame atomic absorption spectrometry; 9MN-SDS/5-Br-PDA: Magnetic nanoparticles coated by sodium dodecyl sulfate and 2-(5-bromo-2-pyridylazo)-5-diethyl aminophenol ligand