Pyrolysis coupled with gas - chromatography and mass - spectrometry(PY - GC/MS) is a sensitive analytical tech-nique allowing the analysis of different classes of compounds in crude state without the sample manipulation or derivatiza-tion.

• 报道现代热裂解气相色-质谱(PY-gc/MS)分析技术在文物保护和艺术品研究中的应用。