引用本文:
杨桦, 王文清, 彭立娥. 量热滴定法测定苯丙氨酸、亮氨酸、蛋氨酸、色氨酸的热力学函数[J]. 物理化学学报,
1989, 5(05): 583-586.
doi:
10.3866/PKU.WHXB19890514
Citation: Yang Hua, Wang Wenqing*, Peng Lie. THE DETERMINATION OF THERMODYNAMIC FUNCTION OF PROTONATION OF PHENYLALANINE, LEUCINE, TRYPTOPHAN AND METHIONINE BY TITRATION CALORIMETRY[J]. Acta Physico-Chimica Sinica, 1989, 5(05): 583-586. doi: 10.3866/PKU.WHXB19890514
Citation: Yang Hua, Wang Wenqing*, Peng Lie. THE DETERMINATION OF THERMODYNAMIC FUNCTION OF PROTONATION OF PHENYLALANINE, LEUCINE, TRYPTOPHAN AND METHIONINE BY TITRATION CALORIMETRY[J]. Acta Physico-Chimica Sinica, 1989, 5(05): 583-586. doi: 10.3866/PKU.WHXB19890514
量热滴定法测定苯丙氨酸、亮氨酸、蛋氨酸、色氨酸的热力学函数
English
THE DETERMINATION OF THERMODYNAMIC FUNCTION OF PROTONATION OF PHENYLALANINE, LEUCINE, TRYPTOPHAN AND METHIONINE BY TITRATION CALORIMETRY
Abstract:
The thermodynamic functions of protonation reactions of phenylalanine, leucine, tryptophan and methionine have been determined by titration calorimetry combined with computer fit program for thermodynamic function and it has been reported that there are differences between ΔH, logβ, ΔG and ΔS of protonation reactions of amino acids. From the experimental results, the differences are related to the nature of the side chain substituent group R of asymmetric carbon atom of α-amino acid and the sequence of the differences has also been reported.
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