- 作者: 許東榮; 廖繼洲; 陳美雲
- 作者服務機構: Department of Analytical Chemistry, Taipei Medical College, Taipei, Taiwan 105
- 中文摘要: This is to report a study in which cation ion-exchange resin serves as the stationary phase for liquid chromatography of benzoic acid and phthalic acid and aqueous ethanol acts as the mobile phase. No ion exchange phenomenon is involved. It is rather a solvent action on the polymer matrix for the organic solutes. It was found that the elution volumes depend on the pKa values of the acids; the higher the pka value the more the retention volume.
- 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --