Identification of archaeological triterpenic resins by the non-separative techniques FTIR and ¹³C NMR: The case of Pistacia resin (mastic) in comparison with frankincense

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• 作者：Silvia Bruni ; Vittoria Guglielmi
• 关键词：FTIR ; 13C NMR ; Natural resins ; Archaeology
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：5 March, 2014
• 年：2014
• 卷：121
• 期：Complete
• 页码：613-622
• 全文大小：759 K

文摘

The use of spectroscopic techniques such as Fourier-transform infrared (FTIR) spectroscopy and carbon 13 nuclear magnetic resonance (¹³C NMR) using the J-mod experiment is proposed as an effective alternative to gas chromatography-mass spectrometry (GC-MS) for the analysis and identification of natural resin samples found in archaeological environments. The spectral features of the most common diterpenic and triterpenic resins and also two gum-resins are reported and discussed for both techniques. The analytical procedure based on the combined use of FTIR and ¹³C NMR is then applied to two archaeological samples from the Milano of the Roman age allowing their identification as Pistacia resin, or mastic, as confirmed by the traditional GC-MS method, and also elucidating some effects of aging on such material.