Author(s)

Wu Junyi, Li Yun, Weng Shihao

Corresponding Author

Wu Junyi

ABSTRACT

This study discloses a rapid qualitative detection method for sulfur in pyrotechnics for fireworks and firecrackers. It belongs to the field of analytical testing technology. Pyrotechnic samples were dissected from fireworks and firecrackers, ground, sieved, dried, cooled to room temperature, and energy dispersive X-ray fluorescence spectrometer was used as the detection instrument. The intensity method was used to establish an analytical method, and the pyrotechnic sample was loaded into the sample cup of the instrument. Then, the sample to be tested is placed in the test chamber of the test instrument, and the fluorescence intensity value of the characteristic line of the sulfur element displayed on the instrument is recorded, and the sample is directly determined whether or not the sample contains sulfur according to the fluorescence intensity value. The qualitative analysis of sulfur element is carried out by the method described in this document. It has high accuracy, good repeatability, simple operation and high efficiency. It can effectively meet the rapid detection of sulfur in the samples of pyrotechnics by manufacturers, regulatory authorities and third-party laboratories.

KEYWORDS

Qualitative detection, sulphur, pyrotechnic, fireworks and firecrackers