Department of Chemistry, Faculty of Sciences and Letters, Trakya University, 22030 Edirne, Turkey.
Spectrochim Acta A Mol Biomol Spectrosc. 2010 Feb;75(2):789-93. doi: 10.1016/j.saa.2009.11.056. Epub 2009 Dec 3.
In this work, the reactions involving L-phenylalanine and D,L-tryptophan in the presence of Cu(II) ion were studied. Optimum conditions for the reactions were established as pH 7 and lambda=641 nm. When the reaction was kinetic, it was observed that the following rate formula was found as dA/A(n)=k dt and k=3.2 x 10(-4)s(-1), according to absorbance measurements. Using a perpetual change curve, the ratio of [Cu]/[Cu]+L-phenylalanine+[D,L-tryptophan] was found 1:1:1. According to this result, one molecule of L-phenylalanine and one molecule of D,L-tryptophan react with one molecule Cu(II) ion.
在这项工作中，研究了在 Cu(II)离子存在下 L-苯丙氨酸和 D,L-色氨酸的反应。确定了反应的最佳条件为 pH 7 和 lambda=641nm。当反应为动力学反应时，通过吸光度测量发现以下速率公式为 dA/A(n)=k dt，其中 k=3.2 x 10(-4)s(-1)。通过永久变化曲线，发现 [Cu]/[Cu]+L-苯丙氨酸+[D,L-色氨酸]的比值为 1:1:1。根据这个结果，一个 L-苯丙氨酸分子和一个 D,L-色氨酸分子与一个分子的 Cu(II)离子反应。
