Analysis of Some Trace Metals in Fish Species after Preconcentration with Congo Red on Amberlite XAD-7 Resin by Flame Atomic Absorption Spectrometry

Table 6

Comparison of the proposed method with other SPE methods for determination of metal ions in fish samples by FAAS.

SPE system	Metal ions	PF	LOD (μg/L)	Reference
Amberlite XAD-16/	Cu, Ni, Zn, Co, Cr, Fe, Pb	60–100	0.69–1.91	[19]
Amberlite XAD-4/	Co, Ni, Cu, Zn, Pb	260–460	0.45–1.37	[20]
Activated carbon/	Cr, Fe, Cu, Ni, Co, Zn	175	0.27–0.33 ng/mL	[36]
Schiff base /silica/magnetite	Pb, Cd, Cu	87.5	0.12–0.19	[37]
Activated carbon/	Fe, Cu, Ni, Co, Cr, Zn	219	0.27–0.33 ng/mL	[38]
Polyurethane foam/o-	Pb, Cd	250, 319	0.072 and 0.016	[39]
MWCNTs/	V, Cr, Pb, Cd, Co, Cu, As	66–101	0.10–3.4 ng/mL	[40]
Dowex Optipore SD-2/	Cu, Ni	50	1.03 and 1.90	[41]
Alumina/Sulfur nanoparticle	Cd, Cu, Zn, and Pb	83.3	0.21–0.63	[42]
Pumice stone/Penicillium digitatum	Cr, Cd, Mn	50	1.5–2.0 ng/mL	[43]
Activated carbon/	Cu, Zn, Pb	—	0.65–1.90	[44]
Amberlite XAD-7/congo red	Cu, Ni, Fe, Zn, Cr, Cd, Pb	300	0.08–2.50	This work

factor.
of detection.
-Aminobenzene sulfonic acid.
-Hydroxybenzoic acid.
salicyl aldehyde, 1,3 propan diamine.
-(4-Methoxybenylideneamino)-2-thioxothiazolidin-4-one.
(2-hydroxyacetophenone)ethylenediamine.
-Aminophenol.
walled carbon nanotubes, iminodiacetic acid.
-Methyl-4-(2-thiazolylazo)resorcinol.
[2-Hydroxybenzylideneamino] 2-hydroxybenzonitral.