粒径对硅酸盐矿物拉曼信号强度的影响

IF 1.9 3区化学 Q2 SPECTROSCOPY

Journal of Raman Spectroscopy Pub Date : 2024-11-13 DOI:10.1002/jrs.6745

Laura B. Breitenfeld, M. Darby Dyar, Elizabeth C. Sklute, Carey Legett

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引用次数: 0

摘要

了解粒度的影响是必要的，定量矿物混合物中使用拉曼光谱。利用6种常见硅酸盐矿物（2种橄榄石、2种辉石和2种长石）在10个粒径范围内评估拉曼信号强度。橄榄石和长石在粒径为38 ~ 63和63 ~ 106 μm的样品中峰值强度最高。辉石样品没有这种一致的趋势，尽管整体低信号强度使这些测量复杂化。不同粒径样品的拉曼光谱似乎受到两种相互竞争的效应的影响：粒子边界散射和有效取样体积。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of Particle Size on Raman Signal Strength of Silicate Minerals

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Effect of Particle Size on Raman Signal Strength of Silicate Minerals

Understanding the effects of particle size is necessary for quantifying minerals in mixtures using Raman spectroscopy. Raman signal intensity is evaluated using six common silicate minerals (two olivines, two pyroxenes, and two feldspars) at 10 particle size ranges. For olivines and feldspars, the highest peak intensities are observed in samples with 38–63 and 63–106 μm particle sizes. There is no such consistent trend for the pyroxene samples, although the overall low signal strength complicates those measurements. Raman spectra of samples with varying particle sizes appear to be influenced by two competing effects: scattering from particle boundaries and effective sampling volume.

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来源期刊

Journal of Raman Spectroscopy 物理-光谱学

CiteScore

5.40

自引率

8.00%

发文量

185

审稿时长

3.0 months

期刊介绍： The Journal of Raman Spectroscopy is an international journal dedicated to the publication of original research at the cutting edge of all areas of science and technology related to Raman spectroscopy. The journal seeks to be the central forum for documenting the evolution of the broadly-defined field of Raman spectroscopy that includes an increasing number of rapidly developing techniques and an ever-widening array of interdisciplinary applications. Such topics include time-resolved, coherent and non-linear Raman spectroscopies, nanostructure-based surface-enhanced and tip-enhanced Raman spectroscopies of molecules, resonance Raman to investigate the structure-function relationships and dynamics of biological molecules, linear and nonlinear Raman imaging and microscopy, biomedical applications of Raman, theoretical formalism and advances in quantum computational methodology of all forms of Raman scattering, Raman spectroscopy in archaeology and art, advances in remote Raman sensing and industrial applications, and Raman optical activity of all classes of chiral molecules.