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Rapid and accurate measurement method for detecting easily-decomposed energy-containing organic matter through stable standard sample-free UV-HPLC

A UV-HPLC, organic matter technology, applied in the field of organic matter analysis and detection, to achieve the effects of simple preparation, accurate detection results, and reducing error sources

Inactive Publication Date: 2014-03-26
XIAN MODERN CHEM RES INST
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  • Description
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Problems solved by technology

I believe that new discoveries are possible with efficient quantitative measurement methods

Method used

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  • Rapid and accurate measurement method for detecting easily-decomposed energy-containing organic matter through stable standard sample-free UV-HPLC
  • Rapid and accurate measurement method for detecting easily-decomposed energy-containing organic matter through stable standard sample-free UV-HPLC
  • Rapid and accurate measurement method for detecting easily-decomposed energy-containing organic matter through stable standard sample-free UV-HPLC

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Embodiment 1

[0048] Embodiment 1: the accurate determination of ADN purity

[0049] ADN is a high energy oxidant ammonium dinitramide (NH 4 N(NO 2 ) 2 ) for short, with high energy density and good safety performance, the propellant containing ADN can increase the thrust by 5% to 10% compared with the usual propellant, and can be used as a candidate oxidant for the next generation of insensitive ammunition and low signature propellant. However, compared with other energetic substances, ADN is more unstable and decomposes into ammonium nitrate (AN) and N at room temperature and pressure. 2 O (evolved in gaseous state). In addition, AN is a by-product during the synthesis of ADN. AN and ADN have similar structures, and they are both ionic bond compounds, so it is difficult to remove AN from ADN, and other impurities are removed earlier in the process of removing AN. These trace amounts of AN can increase the freedom of movement of ADN lattice molecules, reduce the stability, and acceler...

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Abstract

The present invention discloses a rapid and accurate measurement method for detecting an easily-decomposed energy-containing organic matter through stable standard sample-free UV-HPLC. The method comprises: taking an appropriate amount of an easily-decomposed energy-containing organic matter sample, carrying out refinement a plurality of times so as to be adopted as a standard sample of the organic matter, accurately weighing the standard sample and an impurity standard sample to prepare standard solutions, injecting into a UV-HPLC instrument, calibrating instrument response signals so as to respectively obtain the mass response factors, and calculating the multiple k of the impurity mass response factor relative to the organic matter mass response factor, such that the sample is not required to be weighted and only requires being simply prepared into the sample solution when the easily-decomposed energy-containing organic matter sample is detected by using the UV-HPLC instrument, the sample solution is injected into the UV-HPLC instrument, the detected impurity response value is divided by the detected multiple k to carry out correction, the main peak response value is adopted as the numerator, and the total sum of the main peak response value and the impurity correction response value is divided by the main peak response value so as to calculate the sample purity.

Description

technical field [0001] The invention belongs to the field of organic matter analysis and detection, and mainly relates to a method for accurately determining the value of organic matter, in particular to a method for rapidly and accurately determining the value of easily decomposed energetic organic matter by UV-HPLC without a stable standard sample. Background technique [0002] Certain energetic organic compounds are inherently unstable, and their decomposition can be accelerated by light, heat, moisture, and impurities in the sample. Generally, these unstable substances need to be treated with some special treatment techniques (such as wrapping them with inert substances) cover) to passivate it for later use. [0003] Some impurities in the product are the decomposition products of the main substance, and some are by-products in the synthesis process, which have a catalytic effect on themselves, or are not conducive to the use of subsequent products, and need to be contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
Inventor 贾林张林军杨彩宁张冬梅杜姣姣王琼常海陈曼王景荣罗红艳
Owner XIAN MODERN CHEM RES INST
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