Analysis of Organic Acids = Oxalic Acid

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Oxalic Acid

Although oxalic acid cannot be separated from chloride (from NaCl) under normal eluent conditions, the quantification of oxalic acid is made possible by using 50mM perchloric acid as an eluent using RSpak KC-811. Under such conditions, oxalic acid should be detected by RI or UV (at 210nm) detector.

Sample :
1. Anionic Compounds (Cl^-)
2. Oxalic
3. Citric
4. Tartaric
5. Phosphoric
6. Malic
7. alpha-Ketoglutaric
8. Malonic
9. Pyruvic
10. Succinic
11. Lactic
12. Fumaric
13. Acetic
14. Pyroglutamic

Columns      : Shodex RSpak KC-811 (8.0mmID*300mm) x 2
Eluent       : 50mM HClO₄ aq.
Flow rate    : 1.0mL/min
Detector     : Shodex RI
Column temp. : 50deg-C

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