Determination of the Raman depolarization ratio in optically active samples

Determination of the Raman depolarization ratio in optically active samples
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旋光样品中拉曼消偏比的测定

DOI:
10.1039/c2ay25987g
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发表时间:
2013
期刊:
影响因子:
3.1
通讯作者:
M. Kaspereit
M. Kaspereit
中科院分区:
化学3区
文献类型:
--
作者:
J. Kiefer;M. Kaspereit

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拉曼光谱是许多领域的标准分析技术。退偏比是分析和解释拉曼光谱数据的一个有用参数。然而,当研究光学活性样品时,其测定并不简单,因为入射光的偏振状态在其传播通过样品时发生变化。这同样适用于拉曼信号。手性分子在生命科学中非常常见,因此了解旋光活性对拉曼信号的影响对于准确解释至关重要。在这封信中,我们提出了一种方法,可以考虑使用传统的实验拉曼装置的光学活性。当实验的几何细节被很好地表征时,由旋光性引入的误差可以被校正。
Raman spectroscopy is a standard analytical technique in many areas. The depolarization ratio is a helpful parameter in the analysis and interpretation of Raman spectroscopic data. However, its determination is not straightforward when an optically active sample is investigated because the polarization state of the incident light is changing as it propagates through the sample. The same applies to the Raman signal. Chiral molecules are very common in the life sciences and hence the knowledge about the influence of the optical activity on the Raman signal is crucial for an accurate interpretation. In this letter we present an approach that can take optical activity into account using conventional experimental Raman set-ups. When the geometric details of the experiment are well characterized, the errors introduced by the optical activity can be corrected.
DOI: --
发表时间: 1973
期刊:
影响因子: --
作者:
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通讯作者: S. Porto
DOI: 10.1366/000370274774333028
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影响因子: 3.5
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