Using Polarization to Increase Contrast of Water OH Raman Scattering Relative to Fluorescence of Dissolved Organic Matter.

IF 2.2 3区 化学 Q2 INSTRUMENTS & INSTRUMENTATION
Callum E Twining, Paige K Williams, Whitney E Schuler, Caitlyn M English, Tammi L Richardson, Michael L Myrick
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引用次数: 0

Abstract

Environmental fluorescence measurements sometimes use water Raman scattering as an internal standard to compensate for path length, lensing effects, and turbidity. Fluorescent dissolved organic matter (FDOM) in water may interfere strongly with the measurement of this reference. However, fluorescence in fluid solution is largely unpolarized, while the OH stretching Raman band of water is always strongly polarized. Using an environmental sample from Lake Wateree in South Carolina, USA, we demonstrate that judicious use of this polarization allows for a significant level of improvement in the contrast or visibility of the water Raman band relative to FDOM.

环境荧光测量有时使用水拉曼散射作为内标,以补偿路径长度、透镜效应和浊度。水中的荧光溶解有机物(FDOM)可能会对这一标准的测量产生强烈干扰。然而,流体溶液中的荧光基本上是不偏振的,而水的羟基拉曼伸展波段总是强偏振的。通过使用来自美国南卡罗来纳州瓦特里湖的环境样本,我们证明了明智地使用这种极化可以显著提高水拉曼波段相对于 FDOM 的对比度或可见度。
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来源期刊
Applied Spectroscopy
Applied Spectroscopy 工程技术-光谱学
CiteScore
6.60
自引率
5.70%
发文量
139
审稿时长
3.5 months
期刊介绍: Applied Spectroscopy is one of the world''s leading spectroscopy journals, publishing high-quality peer-reviewed articles, both fundamental and applied, covering all aspects of spectroscopy. Established in 1951, the journal is owned by the Society for Applied Spectroscopy and is published monthly. The journal is dedicated to fulfilling the mission of the Society to “…advance and disseminate knowledge and information concerning the art and science of spectroscopy and other allied sciences.”
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