We collected the spectral maps of the soil. The aperture size of map was 10 μm. The map profiles of aliphatic compounds, carboxylic acids, protein, lignin, polysaccharides, and iron oxides (Fe-O) were created with peak heights at 2920, 1716, 1653, 1513, 1035, and 690 cm-1, respectively. We performed a correlation analysis in iron oxides and the organic compounds. The correlation coefficients (R2) of Fe-O with the organic compounds reflects the spatial distribution of organic compounds with iron oxides.
I want to know whether the slope values of organic compounds and Fe-O can represent the relative contents of organic components in the measured regions of SR-FTIR?
Combined analysis the correlation coefficients and slope values, if we can obtain the relative contents of organic components, which was associated with iron oxides? Not the values, but the large or little
我们采集了土壤样品的同步辐射红外图谱。提取了其中不同有机官能团和铁氧化物的光谱信息。我们将每一个有机官能团的光谱都和铁氧化物的光谱强度进行统计分析。相关系数反映各有机官能团与铁分布之间的空间相关性。我想知道的是有机物与铁之间的斜率大小能否反映扫描区域各有机物质的相对含量?其次是结合斜率和相关系数的大小,是否能得到铁氧化物上结合的有机物质的相对含量(哪个多哪个少)?