Application progress of pyrolysis-gas chromatography/mass spectrometry in the research on cultural relic conservation
Chromatography and mass spectrometry are commonly used analytical methods for organic matters,and their applications in cultural relic conservation and archaeological residue research have been developed for decades.When chromatography and mass spectrometry are combined to analyze samples,it may be necessary to perform hydrolytic extraction,derivatization and other pre-treatments of the samples,which is cumbersome and time-consuming,and some samples may be lost during sample processing.Therefore,pyrolysis-gas chromatography/mass spectrometry(Py-GC/MS)is now generally used to analyze organic materials.Py-GC/MS boasts the following advantages:1)no pre-treatments of samples—samples can be directly analyzed by thermal cracking,and the operation is relatively simple;2)high sensitivity—identification of organic samples with multiple components can be realized;3)small amounts of samples needed,which meets the detection requirements for the micro-destructive analysis of cultural relic samples.Therefore,Py-GC/MS plays an important role in the conservation and restoration of cultural relics and the identification of archaeological residues.
Py-GC/MSCultural heritageOrganic material sampleConservation and restoration of cultural relics
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