Phosphonates

Hydroxyethylene-1,1-diphosphonate (HDEPO), Ethylenediaminetetrakismethylene phosphonate (EDTPO), Nitrilotrismethylenephosphonate (NTPO) and Diethylenetriaminepentamethylene phosphonate (DETPPO) were analyzed using IC NI-424.



Sample : 100micro-L
1. Hydroxyethylene-1,1-diphosphonate, HDEPO
2. Ethylenediaminetetrakismethylenephosphonate, EDTPO
3. Nitrilo trismethylenephosphonate, NTPO
4. Diethylenetriaminepentamethylenephosphonate, DETPPO

Column       : Shodex IC NI-424 (4.6mmID*100mm)
Eluent       : 5mM H2SO4 aq.
Flow rate    : 1.0mL/min
Detector     : Shodex RI
Column temp. : 40deg-C