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The Scientific World Journal
/
2013
/
Article
/
Tab 3
/
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 3
Adsorption kinetics of metals in multielement mixture at pH = 4.
Metal
First-order rate constants
Second-order rate constant
Intraparticular diffusion
(theor) (mmol g
−1
)
(min
−1
)
(mmol/g
−1
)
(g mmol
−1
min
−1
)
Co
0,00146
0,00230
0,9533
0,00255
3,283
0,991
119,61
0,00004
0,9427
V
0,00007
0,00299
0,8843
0,00390
137,896
1
1,86
0,000003
0,4423
Cu
0,00004
0,00484
0,8318
0,00315
420,290
1
0,76
0,000001
0,6093
Zn
0,00033
0,00553
0,9541
0,00096
41,447
0,9998
25,04
0,000009
0,6659
Ni
0,00161
0,00345
0,9552
0,00267
4,169
0,9987
89,83
0,00004
0,7309
Fe
0,00193
0,00161
0,7571
0,00350
2,302
0,9993
124,09
0,000008
0,3698
Hg
0,00024
0,00668
0,7452
0,00100
68,596
0,9998
14,52
0,000009
0,4446