An electronic circular dichroism spectroscopy method for the quantification of L- and D-amino acids in enantiomeric mixtures.

An electronic circular dichroism spectroscopy method for the quantification of L- and D-amino acids in enantiomeric mixtures.
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用于定量对映体混合物中 L- 和 D- 氨基酸的电子圆二色光谱法

DOI:
10.1098/rsos.201963
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发表时间:
2021-03-10
影响因子:
3.5
通讯作者:
Zhao Y
Zhao Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ding R;Ying J;Zhao Y

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利用圆二色谱(CD)和标准校正曲线进行数据分析,实现了单一手性氨基酸(AA)的快速定量。用圆二色谱(CD)和非手性液相色谱(LC)法测定了对映体混合物中D-和L-原子吸收光谱的绝对浓度。值得注意的是,在本研究中,CD和LC是独立使用的,而不是在线LC/CD。实验结果的误差小于10%。该方法也适用于手性核苷、手性奎宁等非AA类手性分子的定量。本研究为手性原子吸收光谱的手性定量分析提供了一种新的方法。
Rapid quantitative analysis of single chiral amino acid (aa) was achieved using circular dichroism (CD) with data analysis by standard calibration curve. The absolute concentrations of D- and L-aas in enantiomeric mixtures were determined by CD and achiral liquid chromatography (LC) method. It is worth noting that CD and LC were used independently, not online LC/CD in this study. The errors of the experimental results were less than 10%. The method is also applicable to the quantification of non-aa chiral molecules, such as chiral nucleoside and chiral quinine. With this study, we provide a new method for the chiral quantitative analysis of enantiomeric aas mixtures.
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