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The Scientific World Journal
/
2013
/
Article
/
Tab 2
/
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 2
Adsorption kinetics of metals in single-metal solution.
Metal
First-order rate constants
Second-order rate constant
Intraparticular diffusion
(exp) (mmol g
−1
)
(theor) (mmol g
−1
)
(min
−1
)
(mmol g
−1
)
(g mmol
−1
min
−1
)
Co
0,003394
0,0020068
0,00576
0,9988
0,00326
6,140
0,9997
49,9
0,00005
0,7041
V
0,003926
0,0000176
0,00461
0,7997
0,00392
913,816
1
0,3
0,0000006
0,5295
Pb
0,000965
0,0003075
0,00530
0,9559
0,00091
43,728
0,9999
25,2
0,000009
0,6236
Cd
0,001779
0,0000601
0,01313
0,9368
0,00178
627,455
1
0,90
0,000001
0,5016
Cu
0,003152
0,0000044
0,00668
0,9478
0,00311
5116,770
1
0,06
0,0000001
0,5123
Zn
0,003059
0,0000122
0,00299
0,9195
0,00303
819,968
1
0,40
0,0000004
0,8384
Mn
0,003640
0,0010354
0,01958
0,9961
0,00365
83,622
1
3,27
0,00005
0,3805
Ni
0,003408
0,0000186
0,00484
0,9743
0,00340
739,984
1
0,40
0,0000005
0,7674
Hg
0,000997
0,0000789
0,00507
0,9641
0,00100
186,063
1
5,39
0,000002
0,7665