Organic Acids in Vinegar (KC-811)

Organic acids in vinegar were analyzed using RSpak KC-811.


Sample : Vinegar, 20 μL
(1) :
1. Citric acid , 2. Tartaric acid
3. Malic acid, 4. Succinic acid
5. Acetic acid
(2) :
1. Phosphoric acid, 2. Citric acid
3. Tartaric acid, 4. Gluconic acid
5. Malic acid, 6. Succinic acid
7. Lactic acid, 8. Fumaric acid
9. Acetic acid, 10. Propionic acid


Columns      : Shodex RSpak KC-G 8B (8.0 mm I.D. x 50 mm) + KC-811 (8.0 mm I.D. x 300 mm) x 2
Eluent       : 3 mM HClO4 aq.
Flow rate    : (Eluent); 1.0 mL/min, (Reagent) ; 0.7 mL/min
Detector     : VIS (430 nm) (Post column method)
Column temp. : 50 °C

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