College of Life Science and Technology;
Beijing University of Chemical Technology;
Beijing 100029;
School of Food and Health;
Beijing Technology and Business University;
Beijing 100048;
Chinese Academy of Inspection and Quarantine Science;
Beijing 100176;
College of Materials Science and Engineering;
Beijing University of Chemical Technology;
Beijing 100029;
Taraxacum kok-saghyz(TKS); natural rubber(NR); pyrolysis gas chromatography-mass spectrometry(Py-GCMS); quantification;