Gas chromatography-mass spectrometry (GC-MS) was used to determine the sulfur in 25 pyrotechnic compositions of crackers. Analysis of Variance (ANOVA) and Least Significant Difference-t test (LSD-t test) were used to study the contents of sulfur of pyrotechnics from different sources. The results showed that no sulfur was detected in some pyrotechnics, and the detected sulfur content ranged from 8.7-53.9µg /mg. The content of sulfur in different manufacturers and different types of pyrotechnics varied greatly, which 83.3 % of pyrotechnic compositions can be accurately identified. This study shows the potential for further integration with other analytical methods for pyrotechnic drug tracing studies and will provide intelligence information for the source of pyrotechnics in explosion cases, and useful reference for the rapid detection of such cases.

Pyrotechnics;GC-MS;Sulfur;Chemometrics;Traceability

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Science and Technology Research Project of Higher Education Institutions of Hebei Province in 2023(QN2023128).

DOI： https://doi.org/10.62639/sspjinss06.20240102

Published： 2024