|
sample type |
marine
porewater
|
digested
sediment 1g/L
|
groundwater
|
| typical concentration |
27
mmol/L SO4
2700 ppm SO4 |
50 µmol/L total S
5 ppm total S |
0.5
mmol/L SO4 |
| Method1 | ICP-OES as total S | ||
| wavelength | 180.669 nm -> wavelength table | ||
|
method used
|
yes
|
no
|
yes
|
| dilution |
1
: 20
|
no
|
|
| sample size |
>
1 mL
|
>
5 mL
|
|
| detction limit |
0.2
ppm SO4
|
0.2
ppm SO4
|
|
| standard solutions |
|
||
| Method 2 | Ion chromatography as SO4 | ||
| retention time | 8 min | ||
|
method used
|
yes
|
no
|
yes
|
| dilution |
1:10
|
no
|
|
| sample size |
>
0.5 mL
|
>
0.5 mL
|
|
| detction limit |
5
ppm
|
5
ppm
|
|
| standard solutions | |||
| tips + tricks | |||