Development of a Cloud-Point Extraction Method for Cobalt Determination in Natural Water Samples

Table 5

Comparison of the presented method with other methods for determination of cobalt.

Method	LOD^a (μg L^−1)	RSD^b (%)	Sample volume (mL)	PF^c	Reference
CPE-spectrophotometry	7.5	2.7	10	10	[24]
CPE-FAAS	1.0	3.6	50	25	[25]
SPE-FAAS	3.4	1.3	1300	260	[26]
SPE-FAAS	12.3	1.3	1000	200	[27]
SPE-FAAS	3.9	2.0	250	25	[28]
DLLME-FAAS	0.9	5.8	5	16	[29]
CPE-FAAS	0.5	3.2	25	50	This work

^aLimit of detection.
^bRelative standard deviation.
^cPreconcentration factor.