Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy

Table 3

Comparison of the proposed method with some different methods for determination of lead.

Preconcentration technique	Detection method	LOD (μg·L^−1)	Linear range (μg·L^−1)	Reference
SPE	FAAS	0.29	1.0–20	[27]
SPE	FAAS	0.7	3.0–100	[28]
CPE	UV-vis	3.9	5.0–100	[29]
SPE	GF AAS	0.0008	0.005–0.5	[30]
SPE	GF AAS	0.11	10–250	[5]
DLLME	GF AAS	0.003	0.01–3	[31]
SPE	GF AAS	0.026	0.1–50	This work

CPE: cloud point extraction; DLLME: dispersive liquid-liquid microextraction.