以水为内标的K2CO3水溶液中碳酸盐岩浓度的拉曼和红外光谱定量数据

数据包含配制的不同摩尔浓度(0.5 ~ 5.5 mol/L)的标准离子蒸馏水和K2CO3水溶液，测定了K2CO3浓度，采集了拉曼光谱和红外光谱，并探讨了K2CO3摩尔浓度之间的相关性以及不同P-T条件下的光谱特征。 结果证实了O-H拉曼拉伸模式可以作为测定碳酸盐岩浓度的内标，尽管有一些显著的差异，不同实验室建立的相对拉曼强度之间的相关性存在差异C-O对称拉伸模式和O-H对称拉伸模式。本研究建立了此类的第一次校准，可能有一定的应用价值。

The dataset includes prepared standard ionic distilled water and aqueous K₂CO₃ solutions with molar concentrations ranging from 0.5 to 5.5 mol/L. The concentrations of K₂CO₃ were measured, and Raman and infrared (IR) spectra were collected. The correlations between the molar concentrations of K₂CO₃ and the spectral characteristics under different pressure-temperature (P-T) conditions were explored. The results confirm that the O-H Raman stretching mode can serve as an internal standard for quantifying carbonate concentrations, despite significant discrepancies in the relative Raman intensity correlations established by different laboratories, particularly for the C-O symmetric stretching mode and O-H symmetric stretching mode. This study reports the first calibration of its kind, which has potential practical application value.

搜集汇总

背景与挑战

背景概述

该数据集提供了以水为内标的K2CO3水溶液中碳酸盐岩浓度的拉曼和红外光谱定量数据，包含0.5至5.5 mol/L不同摩尔浓度的标准溶液光谱测量结果。数据探讨了K2CO3浓度与光谱特征的相关性，并验证了O-H拉曼拉伸模式作为内标的可行性，适用于地球化学和岩石矿物分析领域。