proton alpha reaction

In this paper,the thermodynamic parametes on protonation reaction of amino group of L- Serine,L-Threonine,L-Threonine ethyl ester,L-N,N-bis(2-hydroxye thy1 )Serine and L-N,N-bis (2-hydroxyethyl)Threonine have been determined by titration calorimetry at 298.

１ｍｏｌ／ｄｍ４的离子强度下，对Ｌ－丝氨酸、Ｌ－苏氨酸、Ｌ－苏氨酸乙酯、Ｌ－Ｎ，Ｎ－ｇ（２羟乙基）丝氨酸和Ｌ－Ｎ，Ｎ一双（２经乙基）苏氨酸５种物质的氨基质子化反应进行了研究，得到了其反应的平衡常数Ｋ１，反应焓Ｈ１和反应自由能Ｇ１，反应熵面Ｓ１。