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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >A novel strategy for the determination of enantiomeric compositions of chiral compounds by chernometric analysis of the UV-vis spectra of bovine serum albumin receptor-ligand mixtures
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A novel strategy for the determination of enantiomeric compositions of chiral compounds by chernometric analysis of the UV-vis spectra of bovine serum albumin receptor-ligand mixtures

机译:通过比色法分析牛血清白蛋白受体-配体混合物的紫外可见光谱确定手性化合物对映体组成的新策略

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摘要

In this work, a novel strategy was constructed to determine the enantiomeric composition of chiral substances discriminated by bovine serum albumin (BSA) based on the UV-vis spectra of the receptor-ligand mixtures coupled with partial least squares (PLS-1) analysis. Taking tryptophan (Trp) enantiomer as an example, when 20 mu M BSA was used, the enantiomeric composition was accurately determined with concentration of only 100 nM and the corresponding enantiomeric excess as high as 98% (or -98%), which is relatively more sensitive than in literature. Furthermore, the BSA-based approach was also used to predict the enantiomeric composition of other chiral compounds, such as phenylalanine (Phe), tyrosine (Tyr), alanine (Ala), cysteine (Cys), DOPA and propranolol (Prop). The results fully demonstrate that BSA is effective in determination of enantiomeric composition of some chiral compounds. (C) 2006 Elsevier B.V. All rights reserved.
机译:在这项工作中,基于受体-配体混合物的UV-vis光谱结合偏最小二乘(PLS-1)分析,构建了一种新的策略来确定由牛血清白蛋白(BSA)区分的手性物质的对映体组成。以色氨酸(Trp)对映体为例,当使用20μM BSA时,仅100 nM的浓度即可准确测定对映体组成,相应的对映体过量高达98%(或-98%),相对而言比文学上更敏感此外,基于BSA的方法还用于预测其他手性化合物的对映体组成,例如苯丙氨酸(Phe),酪氨酸(Tyr),丙氨酸(Ala),半胱氨酸(Cys),DOPA和普萘洛尔(Prop)。结果充分证明,BSA可有效测定某些手性化合物的对映体组成。 (C)2006 Elsevier B.V.保留所有权利。

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