Analysis of animal glue by pyrolysis/GC/MS

열분해/GC/MS에 의한 아교의 분석

  • Received : 2015.03.03
  • Accepted : 2015.06.15
  • Published : 2015.06.25


Animal glue is a traditional material that was used widely as an adhesive in cultural artifacts, such as Buddhist paintings, dancheong (traditional multicolored paintwork on wooden buildings), mother-of-pearl inlay, and so on. Spectroscopic methods, such as infrared spectroscopy, have been used for the analysis of animal glue. However, such methods do not yield sufficient information about the constituents of the glue. Because pyrolysis/GC/MS analysis is able to estimate the components of a material through the examination of its pyrolyzed products, it is useful for the analysis of polymeric material. In this study, pyrolysis/GC/MS analysis was used to determine the chemical composition of animal glue. The appropriate conditions for analyzing animal glue were established by examining pyrolysis temperature, quantity of the sample, and the repeatability of the method. Some products of pyrolysis were identified. We also analyzed commercial gelatin and animal glue using the established method and found almost no differences in chromatograms among the samples. The results will be used as supporting data to confirm the use of animal glue in cultural artifacts and to replace traditional animal glue by commercial gelatin.


animal glue;cultural heritage;pyrolysis/GC/MS;gelatin


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  1. Confirming Animal Glue in Dancheong Sample by Pyrolysis/GC/MS vol.32, pp.1, 2016,