Grasso Giuseppe, Calcagno Marzia, Rapisarda Alessandro, D'Agata Roberta, Spoto Giuseppe
Department of Chemistry, University of Catania, Viale A. Doria 6, 95125, Catania, Italy.
Consorzio Interuniversitaro I.N.B.B., c/o Department of Chemistry, University of Catania, Viale A. Doria 6, 95125, Catania, Italy.
Anal Bioanal Chem. 2017 Jun;409(16):3943-3950. doi: 10.1007/s00216-017-0341-7. Epub 2017 Apr 21.
The analytical methods that are usually applied to determine the compositions of inks from ancient manuscripts usually focus on inorganic components, as in the case of iron gall ink. In this work, we describe the use of atmospheric pressure/matrix-assisted laser desorption ionization-mass spectrometry (AP/MALDI-MS) as a spatially resolved analytical technique for the study of the organic carbonaceous components of inks used in handwritten parts of ancient books for the first time. Large polycyclic aromatic hydrocarbons (L-PAH) were identified in situ in the ink of XVII century handwritten documents. We prove that it is possible to apply MALDI-MS as a suitable microdestructive diagnostic tool for analyzing samples in air at atmospheric pressure, thus simplifying investigations of the organic components of artistic and archaeological objects. The interpretation of the experimental MS results was supported by independent Raman spectroscopic investigations. Graphical abstract Atmospheric pressure/MALDI mass spectrometry detects in situ polycyclic aromatic hydrocarbons in the carbonaceous ink of XVII century manuscripts.
通常用于确定古代手稿墨水成分的分析方法通常侧重于无机成分，如铁胆墨水的情况。在这项工作中，我们首次描述了使用常压/基质辅助激光解吸电离质谱（AP/MALDI-MS）作为一种空间分辨分析技术，用于研究古代书籍手写部分所用墨水的有机碳质成分。在17世纪手写文件的墨水中原位鉴定出了大型多环芳烃（L-PAH）。我们证明，将MALDI-MS作为一种合适的微破坏性诊断工具应用于常压下空气中样品的分析是可行的，从而简化了对艺术和考古文物有机成分的研究。独立的拉曼光谱研究支持了对实验MS结果的解释。图形摘要 常压/MALDI质谱法原位检测17世纪手稿含碳墨水中的多环芳烃。
