- 作者: 張怡怡; 許東榮; 高文彥; 楊秋琴
- 作者服務機構: Department of Analytical Chemistry, Taipei Medical College, Taipei, Taiwan 105
- 中文摘要: L-Ascorbic acid and oxalic acid could be successfully separated with a column of 8% cross-linked sulfonated polystyrene cation-exchange resin in hydrogen form, and eluted with 0.01% aqueous solution of nitric acid, sulfuric acid, or phosphoric acid. Among the mineral acids used, nitric acid showed the best separatory effect. The minimum detectable quantities of the acids were 0.05μg and 0.5μg per 0.5ml sample solution for L-ascorbic acid and oxalic acid, respectively. Under this condition, the acids could be detected by using automatic UV-monitor apparatus.
- 英文摘要: --
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