Supercharge Your Innovation With Domain-Expert AI Agents!

Method for quickly detecting content of strontium in pyrotechnic composition blind sample for fireworks and crackers in semi-quantitative mode

A semi-quantitative detection, fireworks technology, applied in the field of analysis and testing, can solve problems such as insufficient operation proficiency, cumbersome operation steps, and measurement result errors, and achieve the effects of low labor intensity, high detection efficiency, and high precision

Inactive Publication Date: 2018-05-08
吴俊逸
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method described in this standard has the following deficiencies: (1) The detection cycle is long, and generally skilled technicians need 2 working days to complete a detection
In addition, in the specific test process, it is easy to introduce the uncertainty of the measurement result error due to the lack of proficiency of the test personnel.
(2) The operation steps are relatively cumbersome. The whole test process needs to go through many steps such as sample pretreatment, washing, dissolution, filtration, transfer, precipitation, enrichment and titration.
So far, there is no public literature report on the method of rapid semi-quantitative detection of strontium content in pyrotechnic powder used in fireworks and firecrackers based on energy dispersive X-ray fluorescence spectroscopy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for quickly detecting content of strontium in pyrotechnic composition blind sample for fireworks and crackers in semi-quantitative mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Comparison of strontium element content in pyrotechnic powder with fluorescence intensity values ​​of strontium element characteristic lines

[0030] Since it is impossible to find pyrotechnic powder reference materials with accurate strontium content in the market, and because the physical form of black powder is similar to that of pyrotechnic powder, reference materials of pyrotechnic powders with different strontium contents based on black powder are formulated with strontium carbonate reference materials. Substances are tested. By detecting the corresponding relationship between the strontium content in different pyrotechnic drug reference materials and the fluorescence intensity value of the characteristic line corresponding to the strontium element, the general correspondence between the strontium content in the pyrotechnic agent and the corresponding characteristic line fluorescence intensity is deduced. The energy dispersive X-ray fluorescence spectro...

Embodiment 2

[0034] Embodiment 2: the repeatability test of method (strontium content is 10%)

[0035] The purpose of the method repeatability test is to further confirm the corresponding fluorescence intensity values ​​of strontium element characteristic lines when the mass percentage of strontium in different types of pyrotechnic agents is 10%. Different types of pyrotechnic agents were used as the matrix, and pyrotechnic drug reference material samples with a strontium carbonate content of 10% were used 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 collimator aperture is 8.8mm, the filter is set to thick Pd, the voltage is 25 kV, 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 peak spectrum observation The li...

Embodiment 3

[0039] Example 3: Semi-quantitative rapid detection of strontium content in pyrotechnic powder blind samples and selection of further accurate quantitative analysis methods

[0040] (1) Dissect the pyrotechnic powder sample from the fireworks and firecracker products, take 5g of the pyrotechnic powder in a copper mortar, grind it carefully with a copper rod, pass through a 40-mesh sieve, and place the sample powder in the Dry in an explosion-proof oven for 4 hours at a drying temperature of 50°C. After drying, place it in a desiccator to cool to room temperature.

[0041] (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 thick Pd, and the voltage is set to 25 KV, the analysis time is 40s, the energy range is 40keV, the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Fluorescence intensity valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for quickly detecting the content of strontium in a pyrotechnic composition blind sample for fireworks and crackers in a semi-quantitative mode, and belongs to the technical field of analysis test. The method comprises the following steps: separating out a pyrotechnic composition sample from a firework and cracker product, grinding, screening, drying, cooling to the room temperature, taking an energy dispersion type X-ray fluorescence spectrometer as a detecting apparatus, adopting an intensity method to establish an analysis method, adding a sample into an apparatus sample cup, putting a to-be-detected sample into a test cabin of the detecting apparatus, recording fluorescence intensity of a strontium element characteristic spectral line displayed on the apparatus, estimating the content, in the sample, of the strontium element, and further selecting a proper analysis apparatus to accurately analyze the content of strontium in the pyrotechnic composition for fireworks and crackers in the quantitative mode. The method disclosed by the invention is adopted to perform semi-quantitative analysis on the content of strontium, is simple to operate, and ishigh in efficiency; and difference between the estimated strontium content and the practical strontium content is relatively small, and a data basis can be provided for the method for further selecting and accurately analyzing the content of strontium in the sample quantitatively more effectively.

Description

technical field [0001] The invention relates to the technical field of analysis and testing, in particular to a method for rapidly and semi-quantitatively detecting strontium content in a blind sample of pyrotechnic powder for fireworks and firecrackers by using an energy dispersive X-ray fluorescence spectrometer and adopting an intensity method. Background technique [0002] In the prior art, there is no rapid semi-quantitative detection method for strontium content in blind samples of pyrotechnic powder for fireworks and firecrackers based on energy dispersive X-ray fluorescence spectrometry, only quantitative detection methods for strontium content. And the detection method of strontium content in pyrotechnic agent for fireworks and firecrackers is based on traditional chemical analysis method, the assay method of strontium content in pyrotechnic agent for fireworks and firecrackers at present is " pyrotechnic agent for fireworks and firecrackers Part 6: Determination of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N23/223
CPCG01N23/223G01N2223/076
Inventor 吴俊逸
Owner 吴俊逸
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com