使用有机酸分析用色谱柱RSpak KC-811分析豆酱中的有机酸。
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Sample : Soybean paste extract, 100 μL
1. Citric acid
2. Malic acid
3. Lactic acid
4. Formic acid
5. Acetic acid
6. Pyroglutamic 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 : 1.0 mL/min
Detector : VIS (430 nm) (Post column method)
Column temp. : 40 ℃