Review Article
Old and New Flavors of Flame (Furnace) Atomic Absorption Spectrometry
Table 4
Selected papers using FAAS and preconcentration strategies with ionic liquids.
| Sample (s) | Analyte | Remarks | Preconcentration factor | LOD | Complexing agent | Ref. |
| Kidney, liver, tea and water | Cd (II) | TSIL-MBT could be recycled at least 5 cycles. | — | 0.19 μg/L | 1-Butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF6] that contained hydrophobic task specific ionic liquid (TSIL) functionalized 2-mercaptobenzothiazole (MBT) | [173] | Black tea, rice flour, and water. | Ni | PAN complex was back-extracted into acidified aqueous phase | 40.2 | 12.5 μg/L | [C4mim][PF6], containing PAN as complexing agent. | [174] | Water, table salt andfood grade NaNO3 | Pb and Cd | Home-made microsample introduction valve combined with atom concentrator tube (ACT) improved sensibility | 273 (Pb) and 311 (Cd) | 0.6 (Pb) and 0.03 (Cd) μg/L | Analytes were complexed with DDTC and extracted by using NaPF6 and ethanol containing of [Hmim][PF6]. | [175] | Water and milk | Zn | Optimum pH 9.5 | 71 | 0.22 μg/L | Zinc was complexed with 8-hydroxyquinoline and extracted with 1-hexylpyridinium hexafluorophosphate [HPy] [PF6] ionic liquid | [176] |
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