The Scientific World Journal / 2013 / Article / Tab 12 / Research Article
Solid Phase Extraction of Inorganic Mercury Using 5-Phenylazo-8-hydroxyquinoline and Determination by Cold Vapor Atomic Fluorescence Spectroscopy in Natural Water Samples Table 12 Comparison of figures of merits for different preconcentration methods for Hg(II) ion.
Chelating resin DTa pH Capacity
·
PFc Referenced
poly(acrylamide) grafted onto cross-linked poly(4-vinyl pyridine) (P4-VP-g -PAm)AFS 1–8 4.1 2 20 [9 ]
Silica gel/2-thiophenecarboxaldehydeAAS 2 2 4.75 1000 [10 ]
Sodium dodecyl sulphate-coated magnetite nanoparticles/Michler’s Thioketone complexesICP-AES 3 — 40 1230 [11 ]
Magnetic nanoparticles doped with 1,5-diphenylcarbazideCV-AAS 6 0.22 160 100 [12 ]
Poly-allylthioureaCV-AAS 2 1.1 80 160 [13 ]
Silica gel/2-(2-oxoethyl)hydrazineICP-AES 4 0.18 100 50 [14 ]
Polyaniline (PANI)gold trap-CVAAS 1–12 0.49 0.05 120 [15 ]
Hg(II)-Ionic imprinted polymers-thymineAFS 8 0.014 30 200 [16 ]
Silica gel/cysteineCV-AAS 1–7 0.69 1.5 40 [17 ]
Alumina/dimethylsulfoxideAAS 1-2 381 — 1000 [18 ]
C18/Isopropyl 2-[(isopropoxycarbothioly)disulfany]ethane thioateCV-AAS 3–7 0.015 5 >150 [19 ]
Hg(II)-imprinted ion polymerCV-AAS 8 0.205 50 200 [20 ]
Agar powder modified with 2-mercaptobenzimidazoleCV-AAS 2-3 1.89 20 100 [21 ]
Hg(II)-imprinted thiol-functionalized mesoporous sorbentICP-AES 4–8 0.022 390 150 [22 ]
Silica gel immobilized 5-phenylazo-8-hydroxyquinolineCV-AFS 4 0.027 0.21 >250 This work
Detection technique; b limit of detection; c preconcentration factor; d reference.