Sample
|
Minimum detection levels (S/N=3)
|
||
1. Li+ | – | – | |
2. Na+ | 0.15ng |
(1.5 micro-g/L)
|
|
3. NH4+ | 0.30ng |
( 3 micro-g/L)
|
|
4. K+ | 0.60ng |
( 6 micro-g/L)
|
|
5. Ca2+ | 0.20ng |
( 2 micro-g/L)
|
|
6. Mg2+ | 0.20ng |
( 2 micro-g/L)
|
|
( ) : minimum concentrations when
100 micro-L of sample is injected. |
Column : Shodex IC YK-421 (4.6mmID*125mm)
Eluent : 5mM Tartaric acid + 1mM Dipicolinic acid + 1.5g/L Boric acid aq.
Flow rate : 1.0mL/min
Detector : Shodex CD
Column temp. : 40°C