|
sample type |
marine
porewater
|
digested
sediment 1g/L
|
groundwater
|
| typical concentration |
µmol/L
ppb |
0.5 µmol/L
30 ppb |
10 µmol/L |
| Method1 | ICP-OES | ||
| wavelength | 324.754 nm -> wavelength table | ||
|
method used
|
no
|
yes
|
no
|
| dilution |
|
-
|
|
| sample size |
|
>
2 mL
|
|
| detction limit |
|
10
ppb
|
|
| standard solutions |
|
Single
element standard in nitric acid 1%
|
|
| Method 2 | GF-AAS | ||
| wavelength | 324.8 nm | ||
|
method used
|
yes
|
yes
|
yes
|
| dilution |
1:10
|
1:1000
|
-
|
| sample size |
50
µL
|
500
µL
|
500
µL
|
| detction limit |
2
ppb
|
1ppb
|
1
ppb
|
| standard solutions |
Single
element standard in nitric acid 1%
|
Single
element standard in nitric acid 1%
|
Single
element standard in nitric acid 1%
|
| Method 3 | ICP-MS | ||
| Mass | 63, 65-> Mass Table | ||
|
method used
|
yes
|
yes
|
yes
|
| dilution |
1:100
|
1:10
|
1:10
|
| sample size |
>
1 mL
|
>
1 mL
|
>
1mL
|
| detction limit |
10
ppb
|
1
ppb
|
1
ppb
|
| standard solutions | |||
| tips + tricks | |||