Method of quick and semiquantitative detection of iron content in blind sample of pyrotechnic composition for fireworks and crackers
A semi-quantitative detection, fireworks and firecracker technology, applied in the field of analysis and testing, can solve the problems of insufficient operation proficiency, cumbersome operation steps, error in measurement results, etc., and achieve the effects of low labor intensity, high detection efficiency, and high precision.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] Example 1: Comparison of the iron content in the pyrotechnic powder and the fluorescence intensity value of the iron characteristic line
[0033] Since it is impossible to find a pyrotechnic powder reference material with an accurate fixed value of iron content in the market, and because the physical form of black powder is similar to that of pyrotechnic powder, the iron powder reference material is used to refer to the actual pyrotechnic powder common formula ratio to configure the black powder as the matrix. Pyrotechnic powder reference substances with different iron contents were tested. By detecting the corresponding relationship between the iron content in different pyrotechnic drug reference materials and the corresponding characteristic line fluorescence intensity values, the general correspondence between the iron content in the pyrotechnic drug and the corresponding characteristic line fluorescence intensity is deduced. The energy dispersive X-ray fluorescence ...
Embodiment 2
[0037] Embodiment 2: the repeatability test of method (iron content is 1%)
[0038] The purpose of the method repeatability test is to further confirm the corresponding fluorescence intensity values of the characteristic spectral lines of iron when the mass percentage of iron in different types of pyrotechnic agents is 1%. Different types of pyrotechnic agents were used as the matrix, and pyrotechnic drug reference material samples with an iron content of 1% were configured for determination. The energy dispersive X-ray fluorescence spectrometer was used as the detection instrument. The parameters of the detection instrument were set as follows: use the intensity method to establish the analysis method, The aperture of the collimator is 8.8mm, the filter is set to thin Pd, the voltage is 14kV, the analysis time is 30s, the energy range is 0-40keV, the count rate is medium, the gas environment is air, the current is automatic and the peak spectrum observation line is K line, ...
Embodiment 3
[0042] Example 3: Semi-quantitative rapid detection of iron content in pyrotechnic powder blind samples and selection of further accurate quantitative analysis methods
[0043] (1) Dissect the pyrotechnic powder sample from the fireworks and firecracker products, take 5g of the sample in a copper mortar, grind it carefully with a copper rod, pass through a 40-mesh sieve, and place the sample powder in an explosion-proof Dry in an oven for 4 hours at a drying temperature of 50°C, and place in a desiccator to cool to room temperature after drying.
[0044] (2) Establish the detection method: use the energy dispersive X-ray fluorescence spectrometer as the detection instrument, and use the intensity method to establish the analysis method; the parameters of the detection instrument are set as follows: the aperture of the collimator is 8.8mm, the filter is set to thin Pd, and the voltage is 12kV, the analysis time is 30s, the energy range is 0-40keV, the counting rate is medium, t...
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| fluorescence | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More