[D-（--）-α-氨基苯乙酸的酸碱平衡]
[Acid-base equilibrium of D-(--)-alpha-aminophenylacetic acid].
作者信息
Nys P S, Abramova E E, Kolygina T S, Savitskaia E M
出版信息
Antibiotiki. 1977 May;22(5):405-8.
PMID:879724
Abstract
Potentiometric titration was performed and the ioniziation macroconstants of D-(--)-alpha-aminophenylacetic acid and its methyl ether were determined. The constants were used for estimation of 4 microconstants of D-(--)-alpha-aminophenylacetic acid and the constants of the tautomeric equilibrium of the zwitter-ionic and neutral forms of the amino acid. Minimum solubility of D-(--)-alpha-aminophenylacetic acid was determined and pH-dependence of its solubility was estimated.
摘要
进行了电位滴定，并测定了D-（-）-α-氨基苯乙酸及其甲醚的电离宏观常数。这些常数用于估算D-（-）-α-氨基苯乙酸的4个微观常数以及该氨基酸两性离子和中性形式的互变异构平衡常数。测定了D-（-）-α-氨基苯乙酸的最低溶解度，并估算了其溶解度的pH依赖性。
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