Selected papers using FAAS and preconcentration strategies using functionalized materials.
Sample (s) Analyte Remarks Preconcentration factor LOD Complexing agent Ref. Water Cd (II) — 120 0.11 μg/L Polymer based on cadmium(II) 2,2-
[ 197] Soil, effluent, and water Pb — 48 1.3 μg/L Dithiocarbamate functionalized Merrifield Chloromethylated Resin beads [ 198] Soil, effluent, and water Cd(II) and Cu(II) — 27 3.0 μg/L Diethyl ammonium dithiocarbamate surface sorbed Merrifield Chloromethylated Resin beads [ 198] Water Cu(II) — 20 18 μg/L Polystyrene-divinylbenzene resin (PS-DVB) functionalized with a benzothiazole group. PS-DVB treated with BA (ethyl 2-benzothiazolylacetate) (BA-PS-DVB) [ 199] Water Cd(II) and Cu(II) — 50 (Cd(II)) and 50 (Cu(II)) 9.0 (Cd(II)) and 18 (Cu(II)) Polystyrene-divinylbenzene resin (PS-DVB) functionalized with a benzothiazole group. Amino-PS-DVB was diazotized and coupled with BA (azo-BA-PS-DVB) [ 199] Wine Cd — 39 37 ng L −1 5-Br-PADAP functionalized onto the wool [ 200] Urine Cu, Fe, Mn and Ni Urine samples were online ultrasound assisted digested by the stopped-flow mode 42.6 (Cu), 21.7 (Fe), 21.3 (Mn), and 44.1 (Ni) 0.5 (Cu), 1.1 (Fe), 0.8 (Mn), and 0.8 (Ni) μg/L Iminodiacetic functional group resin, Chelite Che [ 201] River and seaside water Cu Sorbent was shown to be promising for solid-phase extraction discussed by FT-IR — 0.5 μg/L Cu(II)-imprinted interpenetrating polymer network (IPN) gel of epoxy-diethylenetriamine and methacrylic acid-acrylamide-N,N0-methylene-bis-(acrylamide) [ 202]