Chemistry Reference
In-Depth Information
D.M.
a
−0.15 −0.25
+0.05
+0.31
4.43
Settled
unfiltered
4.19
5.35
6.04
6.44
-
Sewage
filtered
4.19
4.03
4.14
4.59
4.24
D.M.
a
pH 10
−0.05 −0.21
−0.10
+0.35
Settled
unfiltered
4.89
4.77
5.34
5.85
-
Sewage
filtered
4.09
4.16
4.14
4.24
4.16
HgCl
2
D.M.
a
−0.07
0.00
−0.2
+0.06
Settled
unfiltered
5.11
5.24
5.49
5.53
-
Sewage
filtered
3.46
3.54
3.76
3.90
3.69
HgCl
2
+pH 10
D.M.
a
−0.13 −0.15
+0.07
+0.21
Settled
unfiltered
5.00
5.52
6.20
6.48
-
Sewage
filtered
4.15
4.16
4.54
4.74
4.40
D.M.
a
Formaldehyde
−0.25 −0.24
+0.14
+0.34
Settled
unfiltered
5.11
5.43
5.43
5.46
-
Sewage
filtered
3.84
4.09
4.04
4.00
4.00
Formaldehyde
pH 10
D.M.
a
−0.16
+0.09
+0.04
0.00
a
D.M.=Derivation from the mean concentration in filtered samples
Source: Reproduced with permission from Sulpher Ltd, Chiswick [91]
membrane filter. The detection limit was 4.2µg L−1 a
n
d H
2
PO
2
−
, cobalt and nickel did
not interfere.
8.19
Polysulphide
8.19.1
Anodic stripping voltammetry
The application of this technique is discussed under multianion analysis in section
14.8.1.1.
8.20
Sulphate
8.20.1
Spectrophotometric method
The application of this technique is discussed under multianion analysis in section
14.2.3.3.
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