Rain Water

Four kinds of anions in rain water were analyzed using IC NI-424.


Sample : Rain water (Water), 100micro-L
1. Cl^-
2. NO₂^-
3. NO₃^-
4. SO₄^2-

Column       : Shodex IC NI-424 (4.6mmID*100mm)
Eluent       : 8mM 4-Hydroxybenzoic acid + 2.8mM Bis-Tris + 2mM Phenylboronic acid + 0.005mM *CyDTA aq. 
Flow rate    : 1.0mL/min
Detector     : Non-suppressed conductivity
Column temp. : 40deg-C

^* CyDTA: trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid