Organic acids in vinegar were analyzed using RSpak KC-811, a column for organic acids analysis. Chromatograms (1) and (2) are the analysis results of grain vinegar and pure rice vinegar samples, respectively. The compositions of organic acids in different vinegars vary largely depend on their ingredents, and this composition difference is thought to affect the flavor.
Sample: Vinegar, 20 μL
- Vinegar (1) Vinegar (2)
- 1.Citric acid 1.Phosphoric acid
- 2.Tartaric acid 2.Citric acid
- 3.Malic acid 3.Tartaric acid
- 4.Succinic acid 4.Gluconic acid
- 5.Acetic acid 5.Malic acid
- 6.- 6.Succinic acid
- 7.- 7.Lactic acid
- 8.- 8.Fumaric acid
- 9.- 9.Acetic acid
- 10.- 10.Propionic acid
- Column
- ：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 ℃
Sample Name Index
Operation Manual / Certificate of Analysis
Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.
Product Name Index
Applications
- Effects of Flow Rate (KC-811)
- Effects of Injection Volume (KC-811)
- Effects of Sample Load (KC-811)
- Effects of Column Temperature (KC-811)
- Effects of Concentration of Eluent on Elution Volume (KC-811)
- Effects of Column Temperature on Elution Volume (1) (KC-811)
- Effects of Column Temperature on Elution Volume (2) (KC-811)
- Effects of Acetonitrile in Eluent (1) (KC-811)
- Effects of Acetonitrile in Eluent (2) (KC-811)
- Effects of Reversed Phase Column on Elution Volume (KC-811 + DE-613)
- Elution Volume of Aromatic Organic Acids (NN-814)
- Elution Volume of Organic Acids (NN-814)
- Elution Volume of Organic Acids (DE-413)
- Comparison of Analysis of Organic Acids with 4 Kinds of Detectors (Standards) (KC-811)
- Comparison of Analysis of Organic Acids with 4 Kinds of Detectors (Soy Sauce) (KC-811)
- Influence of Acidic Eluent Selection on Organic Acid Analysis (KC-811)
- Organic Acid Standards (1) (KC-811)
- Organic Acid Standards (2) (KC-811)
- Organic Acid Standards (3) (KC-811)
- Organic Acid Standards (4) (DE-413)
- Organic Acid Standards (5) (DE-213)
- Citric Acid in Phosphoric Acid (DE-613 + KC-811)
- Analysis of Organic Acids in Beer (KC-811)
- Analysis of Organic Acids and Vitamin C in Fruit Juice (KC-811)
- Reverse Phase Analysis of Gluconic Acids (DE-613)
- Analysis of Organic Acids in Sake (Japanese Rice Wine) (KC-811)
- Analysis of Organic Acids in White Wine (KC-811)
- Analysis of Oxalic Acid Using Ion Exclusion Mode (KC-811)
- Organic Acid in Phosphoric Acid (DE-613 + KC-811)
- Analysis of Organic Acids in Soy Sauces (KC-811)
- Separation of Succinic Acid and Fumaric Acid (KC-811)
- Analysis of Organic Acids (Eluent Conteinig Cyclodextrin) (KC-811)
- Camphor and Benzoic Acid (NN-814)
- Di-carboxylic Acids (DE-413)
- Analysis of Organic Acids in Soybean Paste (KC-811)
- Analysis of Organic Acids in Soy Sauce For Noodles (KC-811)
- Organic Acids Analysis in Black-vinegar (KC-811)
- LC/MS Analysis of Organic Acids (DE-213)
- Simultaneous Analysis of Saccharides, Organic Acids and Amino Acids with LC/MS (VG-50 2D)
- Simultaneous Analysis of Hydrophilic Substances in Energy Drink with LC/MS (VG-50 2D)
- Organic Acids (KC-811)
- LC/MS Analysis of Pipecolic Acid (NH2P-40 2D)
- Elution Volume of Organic Acids (NI-424)
- Analysis of Formic Acid in Povidone According to Pharmacopeia Method (KC-811)
- Analysis of Related Compounds of Alanine and Aspartic Acid According to USP-NF Method (SH1011)
- Analysis of Acetic Acid in Vinegar Drinks (KC-811)
- Citric Acid Analysis in Functional Beverage (KC-811)
- Organic Acid Determination Test for Glycerin Fatty Acid Esters According to Japan’s Specifications and Standards for Food Additives (SH1011) (SH1011)