Polyphosphates (2) (SB-802.5 HQ)

Polyphosphates were separated using OHpak SB-802.5 HQ (a column for GFC separation).


Sample : Polyphosphates
1. Sodium tripolyphosphate, Na₅P₃O₁₀
2. Sodium pyrophosphate, Na₄P₂O₇
3. Sodium phosphate monobasic, NaH₂PO₄
4. NaCl

Column       : Shodex OHpak SB-802.5 HQ (8.0mmID*300mm)
Eluent       : 50mM NaCl aq.
Flow rate    : 0.5mL/min
Detector     : Shodex RI
Column temp. : 70deg-C