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Updated: May 31, 2025

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开发和验证一种UV-Vis光谱光度法,用于估计石的总含量

J R S Botelho1, A Caeiro2, H C Sousa1

  • 1University of Coimbra, CERES, Department of Chemical Engineering, 3030-790 Coimbra, Portugal.

MethodsX
|January 23, 2025
PubMed
概括

一种新的光谱光度法准确地量化了样本中的总. 这种可靠的技术,使用跨石灰等价物,适用于分析植物提取物和确定石灰含量.

关键词:
石灰是一种的物质.总内容估计总内容估计紫外线-VIS光谱光度计

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UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
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