使用非抑制器法用阴离子分析色谱柱IC NI-424可以分析HEDP, NTMP, EDTMP和DTPMP等磷酸酯类样品。检测器请选用示差折光检测器。


Sample : 100 mg/L each, 100 μL
1. 1-Hydroxyethylidene-1,1-diphosphonate, HEDP
2. Nitrilotris(methylene phosphonate), NTMP
3. N,N,N',N'-Ethylenediaminetetrakis(methylene phosphonate), EDTMP
4. Diethylenetriaminepenta(methylene phosphonate), DTPMP

Column       : Shodex IC NI-424 (4.6 mm I.D. x 100 mm)
Eluent       : 3 mM H2SO4 aq.
Flow rate    : 1.0 mL/min
Detector     : RI
Column temp. : 40 ℃