98
Marine Sediments
Table 4.6
Results for near-shore marine sediments for four different dissolution procedures
(from [276])
Digestion
As, found,
As, certified, Sb, found,
Sb, certified, Se, found,
Se, certified,
procedure !is g-l
I1gg- 1
I1g g-l
!is g-l
!is g-l
!is g-l
NBS 1646
Procedure 1 12.2 ± 1.0
11.6 ± 1.3
e
(0.4)
0.61 ± 0.02 (0.6)
Procedure 2 11.0 ± 0.9
c
0.59 ± 0.06
Procedure 3 11.0 ± 0.9
0.36 ± 0.09
NRCC MESS-l
Procedure 1 11.6 ± 0.3
ILl ± 1.4
c
0.73 ± 0.08 0.33 ± 0.05 0.34 ± 0.06
Procedure 2 12.2 ± Ll
c
0.35 ± 0.02
Procedure 3 11.4 ± 0.8
0.71 ± 0.03
NRCC BCSS-l
Procedure 1 11.6 ± 1.8
10.6 ± 1.2
c
0.59 ± 0.06 0.42 ± 0.09 0.43 ± 0.06
Procedure 2 11.4 ± Ll
c
0.44 ± 0.03
Procedure 3 11.2 ± 0.5
0.61 ± 0.06
Procedure 1: Fusion with KOH
2: Fusion with NaOH279
3: Fusion with nitric-perchloric-hydrofluoric acids in teflon 276
Table 4.7
Trace elements and minor constituents of marine sediment reference material BCSS-l as
determined by instrumental photon acitivation analysis (IPAA) (from [280])
IPAAa
Certified value b
Detection limits
Trace Elements mg kg- 1
Arsenic
11.6 ± 1.3
ILl ± 1.4
0.8
Barium
347 ±36
330
12
Antimony
0.63± 0.10
0.59 ± 0.06
0.2
Chromium
124 ± 9
123
±14
30
Cobalt
10.9 ± 0.8
11.4 ± 2.1
2.6
Lead
23.0 ± 1.6
22.7 ± 3.4
2.1
Magnesium
213 ± 17
229
±15
19
Nickel
54.8 ± 3.2
55.3 ± 3.6
0.7
Strontium
101 ±12
96
9
Uranium
2.51 ± 0.12
3
0.3
Zinc
122 ±16
119
±12
7
Zirconium
226 ±21
0.4
Minor Constituents (%)
C
2.25± 0.03
2.19 ± 0.09
0.08
Na 2 0
2.59± 0.15
2.72 ± 0.21
0.02
MgO
2.38± 0.56
2.44 ± 0.23
0.004
CI
Lll ± 0.18
Ll2 ± 0.05
0.01
K 2 0
2.25± 0.27
2.17 ± 0.05
0.01
CaO
0.72± 0.09
0.760± 0.074
0.02
Ti0 2
0.71± 0.03
0.734± 0.024
0.004
Fe203
4.62± 0.15
4.70 ± 0.14
0.16
a Concentrations determined by using NBS 1632a coal as a calibration standard. Precision is expressed as a standard deviation
b Precision is expressed as 95 % tolerance limits
Marine Sediments
Table 4.6
Results for near-shore marine sediments for four different dissolution procedures
(from [276])
Digestion
As, found,
As, certified, Sb, found,
Sb, certified, Se, found,
Se, certified,
procedure !is g-l
I1gg- 1
I1g g-l
!is g-l
!is g-l
!is g-l
NBS 1646
Procedure 1 12.2 ± 1.0
11.6 ± 1.3
e
(0.4)
0.61 ± 0.02 (0.6)
Procedure 2 11.0 ± 0.9
c
0.59 ± 0.06
Procedure 3 11.0 ± 0.9
0.36 ± 0.09
NRCC MESS-l
Procedure 1 11.6 ± 0.3
ILl ± 1.4
c
0.73 ± 0.08 0.33 ± 0.05 0.34 ± 0.06
Procedure 2 12.2 ± Ll
c
0.35 ± 0.02
Procedure 3 11.4 ± 0.8
0.71 ± 0.03
NRCC BCSS-l
Procedure 1 11.6 ± 1.8
10.6 ± 1.2
c
0.59 ± 0.06 0.42 ± 0.09 0.43 ± 0.06
Procedure 2 11.4 ± Ll
c
0.44 ± 0.03
Procedure 3 11.2 ± 0.5
0.61 ± 0.06
Procedure 1: Fusion with KOH
2: Fusion with NaOH279
3: Fusion with nitric-perchloric-hydrofluoric acids in teflon 276
Table 4.7
Trace elements and minor constituents of marine sediment reference material BCSS-l as
determined by instrumental photon acitivation analysis (IPAA) (from [280])
IPAAa
Certified value b
Detection limits
Trace Elements mg kg- 1
Arsenic
11.6 ± 1.3
ILl ± 1.4
0.8
Barium
347 ±36
330
12
Antimony
0.63± 0.10
0.59 ± 0.06
0.2
Chromium
124 ± 9
123
±14
30
Cobalt
10.9 ± 0.8
11.4 ± 2.1
2.6
Lead
23.0 ± 1.6
22.7 ± 3.4
2.1
Magnesium
213 ± 17
229
±15
19
Nickel
54.8 ± 3.2
55.3 ± 3.6
0.7
Strontium
101 ±12
96
9
Uranium
2.51 ± 0.12
3
0.3
Zinc
122 ±16
119
±12
7
Zirconium
226 ±21
0.4
Minor Constituents (%)
C
2.25± 0.03
2.19 ± 0.09
0.08
Na 2 0
2.59± 0.15
2.72 ± 0.21
0.02
MgO
2.38± 0.56
2.44 ± 0.23
0.004
CI
Lll ± 0.18
Ll2 ± 0.05
0.01
K 2 0
2.25± 0.27
2.17 ± 0.05
0.01
CaO
0.72± 0.09
0.760± 0.074
0.02
Ti0 2
0.71± 0.03
0.734± 0.024
0.004
Fe203
4.62± 0.15
4.70 ± 0.14
0.16
a Concentrations determined by using NBS 1632a coal as a calibration standard. Precision is expressed as a standard deviation
b Precision is expressed as 95 % tolerance limits