Research on rapid semi-quantitative determination of aluminum in pyrotechnics used for fireworks and firecrackers

2019 International Conference on Advanced Materials and Technology for Sustainable Life

Wu, Junyi^1

Beihai Customs Comprehensive Technology Service Center, Beihai, Guangxi, China^1

关键词: Aluminum contents;    Characteristic lines;    Energy dispersive X-ray fluorescence;    Fluorescence intensities;    Labor intensity;    Measurement process;    Quantitative determinations;    Sample preparation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/587/1/012015/pdf
DOI  :  10.1088/1757-899X/587/1/012015

来源: IOP

【 摘 要 】

This study discloses a method for rapid semi-quantitative determination of aluminum in pyrotechnic powder for fireworks and firecrackers based on energy dispersive X-ray fluorescence spectrometer (EDXRF), including the following steps: preparation of samples, establishment of testing methods, determination of the characteristic line fluorescence intensity values of Al element in samples, and according to the measured fluorescence intensity values, the aluminum content in the pyrotechnic powder samples can be semi-quantitatively determined. The method of the study has the advantages like that: (1) the method is simple to operate, and it can be repeatedly called for testing. Only one new test method needs to be built before the sample test. After the method is established, the test can be repeated at different times without re-establishing the test method for each test. After the first establishment of the new test method, the entire test process only includes three steps: sample preparation, sample loading into the sample cup and on-board testing. (2) The testing time is extremely short. After the sample is prepared, the entire measurement process takes only about 2 minutes. (3) Labor intensity is very low and the requirements for operators are not very strict. (4) The method has good stability, good repeatability and high credibility.