Multidimensional fluorescence spectroscopy of wine using synchronous excitation/emission matrices and time-resolved fluorescence interferometric detection.

IF 2.4 3区化学 Q3 CHEMISTRY, ANALYTICAL Methods and Applications in Fluorescence Pub Date : 2024-07-26 DOI:10.1088/2050-6120/ad64a9

Sakuya Mori, Christopher R Hall, Siobhan J Bradley, Trevor A Smith

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Abstract

Wines are complex mixtures of chemical compounds with broad and overlapping absorption and emission spectral features in the UV and visible spectral regions, making them challenging to study with conventional optical spectroscopic techniques. Multidimensional fluorescence spectroscopies correlate fluorescence spectra with other degrees of freedom, and have proven useful for studying complex molecular systems, offering a pathway for the analysis of wines utilising their inherent fluorescence. Here we employ steady-state excitation-emission matrix (EEM) and time-resolved fluorescence spectral measurements to investigate representative commercial white and red wine samples and a fluorescent 'model' wine base. Combining these multidimensional measurement methods provides information on the emission characteristics of the components that wines contain. This investigation illustrates the potential for multidimensional fluorescence techniques as diagnostic tools for the wine industry.

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使用同步激发/发射矩阵和时间分辨荧光干涉仪检测葡萄酒的多维荧光光谱。

葡萄酒是一种复杂的化合物混合物，在紫外和可见光谱区具有广泛且重叠的吸收和发射光谱特征，因此使用传统的光学光谱技术对其进行研究具有挑战性。多维荧光光谱法将荧光光谱与其他自由度相关联，已被证明有助于研究复杂的分子系统，为利用其固有荧光分析葡萄酒提供了一条途径。在这里，我们采用稳态激发发射矩阵（EEM）和时间分辨荧光光谱测量来研究具有代表性的商用白葡萄酒和红葡萄酒样品以及荧光 "模型 "酒基。结合这些多维测量方法，可以获得葡萄酒所含成分的发射特性信息。这项研究说明了多维荧光技术作为葡萄酒行业诊断工具的潜力。

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来源期刊

Methods and Applications in Fluorescence CHEMISTRY, ANALYTICALCHEMISTRY, PHYSICAL&n-CHEMISTRY, PHYSICAL

CiteScore

6.20

自引率

3.10%

发文量

期刊介绍： Methods and Applications in Fluorescence focuses on new developments in fluorescence spectroscopy, imaging, microscopy, fluorescent probes, labels and (nano)materials. It will feature both methods and advanced (bio)applications and accepts original research articles, reviews and technical notes.