Table 3 Comparison of the published preconcentration methods for silver ion with the recommended method

LLE^a

FAAS

30

-

13

(Campagong and Honjo 2002)

CPE^b

FAAS

-

10–200

2.2

(Shemirani et al. 2007)

DLLME^c

UV-Vis

-

70–2100

30

(Kocúrova et al. 2011)

SPE^d

FAAS

25

-

1.05

(Tuzen and Soylak 2009)

USAEME

FAAS

9.8

55.0–1500

6.8

This work