Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Complete organic and inorganic explosive analyser

A comprehensive analysis and explosives technology, applied in the analysis of materials, material analysis by electromagnetic means, instruments, etc., can solve the problems of low ionization efficiency, improve selectivity and specificity, facilitate qualitative analysis, and improve ionization efficiency and the effect of detection sensitivity

Active Publication Date: 2015-06-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low-temperature plasma ionization source is mainly used to ionize organic explosives, and the ionization efficiency is low when it cannot ionize inorganic explosives or ionize inorganic explosives

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
  • Complete organic and inorganic explosive analyser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The thermal analysis sampler 1 uses the halogen beam heating lamp LCB-50 to heat the sample non-contact, and the distance between the heating lamp and the sampling cloth 4 is 35 mm.

[0020] The carrier gas flows in from the carrier gas inlet 2 of the thermal analysis injector 1, and the sample molecules flow out from the sample gas outlet 3; the carrier gas is pure dry air, and the carrier gas flow rate is 100-500mL / min.

[0021] A nickel source 5 is provided on the gas path at the rear end of the sample gas outlet 3 of the thermal analysis injector 1; the distance between the nickel source 5 and the sample gas outlet 3 is 15 mm.

[0022] A low-temperature plasma ionization source 6 is arranged on the gas path at the rear end of the nickel source 5; the distance between the low-temperature plasma ionization source 6 and the nickel source 5 is 10 mm. The low-temperature plasma ionization source 6 uses a glass tube with an outer diameter of 6 mm and a thickness of 1 mm a...

Embodiment 2

[0025] The thermal analysis sampler 1 conducts contact heating on the sample through a hot stainless steel metal block.

[0026] The carrier gas flows in from the carrier gas inlet 2 of the thermal analysis injector 1, and the sample molecules flow out from the sample gas outlet 3; the carrier gas is pure dry air, and the carrier gas flow rate is 100-500mL / min, which can be selected in the air Add dichloromethane, O 3 Such doping gases can improve the selectivity and specificity of explosive detection.

[0027] A nickel source 5 is provided on the gas path at the rear end of the sample gas outlet 3 of the thermal analysis injector 1; the distance between the nickel source 5 and the sample gas outlet 3 is 15 mm.

[0028] A nickel source 5 is provided on the gas path at the rear end of the sample gas outlet 3 of the thermal analysis injector 1; the distance between the nickel source 5 and the sample gas outlet 3 is 15 mm.

[0029] A low-temperature plasma ionization source 6 i...

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

No PUM Login to View More

Abstract

The present invention relates to a mass spectrometry analysis instrument, specifically to a complete organic and inorganic explosive analyser, which comprises a thermal desorption injector, a sampling cloth, a nickel source, a low temperature plasma ionization source and an analyzer, wherein the thermal desorption injector is provided with a carrier gas inlet and a sample gas outlet, the sampling cloth is arranged in the thermal desorption injector, the sample on the sampling cloth is injected after thermal desorption, and the nickel source, the low temperature plasma ionization source and the analyzer are sequentially arranged on the gas path on the rear end of the sample gas outlet of the thermal desorption injector. According to the present invention, with the two ionization modes such as the low temperature plasma ionization source and the nickel source, the organic and inorganic explosives can be completely detected; the ionization efficiency and the detection sensitivity of the explosives capable of ionizing the two ionization sources can be improved; and the doped gas is added to the carrier gas or low temperature plasma gas ionization discharge gas, such that the reaction reagent ions in the ionization source can be changed, and the selectivity and the specificity of the explosive detection can be improved.

Description

technical field [0001] The invention relates to a mass spectrum analysis instrument, in particular to a comprehensive analyzer for organic and inorganic explosives. The invention can comprehensively detect organic and inorganic explosives through two ionization methods of low-temperature plasma ionization source and nickel source; for explosives that can be ionized by both ionization sources, the ionization efficiency and detection sensitivity can be improved; Adding dopant gas to the discharge gas of the plasma ionization source can change the reagent ions in the ionization source, improve the selectivity and specificity of explosive detection, and facilitate the qualitative analysis of explosives. Background technique [0002] The low-temperature plasma ionization source is based on the principle of dielectric barrier discharge, using He, Ar, N 2 , air, etc. as the discharge gas, a dielectric barrier discharge can occur when a radio frequency voltage is applied to the inn...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/64G01N27/68
Inventor 李海洋陈文东侯可勇谢园园赵无垛花磊
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com