芳香族有機酸の保持容量

芳香族有機酸の分析にはRSpak KC-811よりもゲル基材の極性が高いNN-814が有効です。　有機酸の分離にはイオン排除と逆相モードが関与しています。

Substance	Elution Volume (mL)
Shikimic acid	10.1
DL-Mandelic acid	19.2
Phthalic acid	19.8
Trimellitic acid	23.0
m-Hydroxybenzonic acid	46.5
Vanillic acid	47.1
p-Hydroxybenzoic acid	47.6
o-Hydroxybenzoic acid	48.8
3-Phenylpropionic acid	49.7

Substance	Elution Volume (mL)
Benzoic acid	51.0
Caffeic acid	66.9
Phenylpropionic acid	68.4
Trimesic acid	69.0
Salicylic acid	71.4
m-Toluic acid	86.4
Ferulic acid	87.0
p-Coumaric acid	90.3

Column       : Shodex RSpak NN-814 (8.0mmID*250mm)
Eluent       : 0.1% H3PO4 aq.
Column temp. : 60℃