The aim of this study was to describe the compositional changes in the archaeological specimen using FTIR. Fourier deconvolution was applied in the carbonate (500-650 cm−1), phosphate (900-1200 cm−1), and in the amide region (1700-1600 cm−1). The deconvolution of the spectra in the phosphate region 1200-900 cm−1 reveals six components 960 cm−1, 1010 cm−1, 1020 cm−1, 1030 cm−1, 1110 cm−1 and 1120 cm−1. The bone mineral such as CO32−, PO43− particle, collagen, and organic materials were studied in detail from the infrared spectra. The computed parameters such as collagen development, mineralization index, C/P proportion, crystalline index, and maturing of bone help us in characterizing the bone samples. The Low estimation of C/P proportion resulted in changes in Type B carbonate (PO43−) substitution. The absence of phosphate band ~1100 cm−1 and formation of β sheet structure were observed in the samples studied. Increased level of mineralization resulted in the increased in the crystalline nature of the bone samples. The study indicates the utilization of FTIR using self deconvolution technique which helps in understanding the compositional changes in the archaeological sample.

中文翻译：

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利用傅里叶自反褶积技术研究的考古样品的骨矿物质中矿化作用改变了PO43-离子的取代B型碳酸盐

这项研究的目的是使用FTIR描述考古标本中的成分变化。在碳酸盐（500-650 cm-1），磷酸盐（900-1200 cm-1）和酰胺区域（1700-1600 cm-1）中进行傅里叶反卷积。磷酸盐区域1200-900 cm-1中的光谱解卷积揭示了六个分量960 cm-1、1010 cm-1、1020 cm-1、1030 cm-1、1110 cm-1和1120 cm-1。从红外光谱中详细研究了骨矿物质，例如CO32-，PO43-颗粒，胶原蛋白和有机材料。计算出来的参数（例如胶原蛋白的发育，矿化指数，C / P比例，结晶指数和骨骼的成熟度）有助于我们表征骨骼样品。C / P比例的低估计值导致B型碳酸盐（PO43-）取代的变化。在所研究的样品中观察到不存在约1100 cm-1的磷酸盐带和β片状结构的形成。矿化水平的提高导致骨骼样品晶体性质的增加。研究表明，利用自反卷积技术可以利用FTIR，这有助于了解考古样品的成分变化。