Organic Acid in Phosphoric Acid (DE-613 + KC-811)

Citric acid in phosphoric acid was analyzed using RSpak DE-613 and KC-811.

Sample :
1. Phosphoric acid
2. Citric acid
3. Malic acid
4. Lactic acid
5. Succinic acid
6. Fumaric acid

Columns      : Shodex RSpak KC-LG (8.0mmI.D. x 50mm) + DE-613(6.0mmI.D. x 150mm) x 2
               + KC-811 (8.0mmI.D. x 300mm) x 3
Eluent       : 3mM HClO4 aq.
Flow rate    : 1.0mL/min
Detector     : Non-suppressed coductivity
Column temp. : 60°C