Analysis of Organic Acids in White Wine (KC-811)

Organic acids in white wine were analyzed using RSpak KC-811. Fruit contains a large amount of malic acid. For wine, malic acid is transformed to lactic acid by enzymes during malolactic fermentation. The result of this transformation is said to give wine a mild taste. For high quality white wine, the chromatogram shows almost all the malic acid has been transformed to lactic acid.

Sample: 10 µL

  1. 1.Citric acid
  2. 2.Tartaric acid
  3. 3.Malic acid
  4. 4.Succinic acid
  5. 5.Lactic acid
  6. 6.Fumaric acid
  7. 7.Acetic acid
  8. 8.Pyroglutamic acid
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
3 mM HClO4 aq.
Flow rate
(Eluent); 1.0 mL/min, (Reagent); 0.7 mL/min
VIS (430 nm) *Post column method
Column temp.
45 ℃

Sample Name Index

Operation Manual / Certificate of Analysis

Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.

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