Table 2.17
Precision
of the data after digestion procedures on River Rhine Reference Sediment (ICE 1) (from [40])
I:t=
Nominal Value
Ag
Cd
Co
Cr
Cu
Hg
Mn
Ni
Pb
Zn
9.32
9.65
21.9
450
244
4.4
704
79
170
950
~
± 1.6
±1.2
±2
± 27
± 14
± 0.33
± 51
± 6.6
± 9.7
± 4.2
'"
....
.,
0.5 g Sediment,S ml HN0
3
:;
p..
3 h pressurized digestion, n
= 5
~
....
x [Ilg g-l]
10.3
23.0
483
265
4.1
763
77.1
180
1.028
'"
.,
25;
[Ilg g-l]
0.33
0.98
15.0
4.0
0.12
18.9
4.8
6.8
31.5
3
(J>
V[%]
3.2
4.3
3.1
1.5
2.9
2.5
6.2
3.8
3.1
'"
§'
0.4 g Sediment, 3 ml HCl/l
rnl HN0
3
'"
3 h pressurized digestion, n
= 5
a
0>
x [Ilg g-l]
8.1
9.5
16.0
449
256
4.4
687
59.9
154
875
25;
[Ilg g-l]
0.2
0.24
0.26
5.3
3.3
0.24
9.3
1.1
2.7
12.2
V[%]
2.5
2.5
1.6
1.2
1.3
5.5
1.4
1.8
1.8
1.4
0.3 g Sediment, 3 ml HN0
3 /1
rnl HCll h
open digestion, n
= 3
x [Ilg g-l]
8.1
9.5
16.0
449
256
4.4
687
59.9
154
875
25;
[1lS g-l]
0.2
0.24
0.26
5.3
3.3
0.24
9.3
1.1
2.7
12.2
V[%]
2.5
2.5
1.6
1.2
1.3
5.5
1.4
1.8
1.8
1.4
1 g Sediment,
15 ml HCl/5 ml HN0
3 , 3 h
open digestion with reflux condenser, n
= 3
x [1lS g-l]
8.7
9.4
18.0
403
244
4.3
778
58.7
162
912
25;
[Ilg g-l]
0.84
0.24
1.04
20.4
7.2
0.52
23.7
3.5
5.8
10.7
V[%]
9.7
2.6
5.8
5.1
3.0
12.1
3.0
6.0
3.6
1.2