Explosive CL-20 crystal form quantitative analysis Raman feature region determination method

Abstract

In order to solve the problems of weak Raman spectroscopy vibration frequency, complex Raman peak shape, peak position overlapping, difficult spectrogram analysis and the like of the Raman spectroscopy method for quantitative analysis of the explosive CL-20 crystal in the prior art, the present invention provides an explosive CL-20 crystal form quantitative analysis Raman feature region determination method, wherein Raman spectrograms of four crystal forms such as alpha-, beta-, gamma- and epsilon- of the explosive CL-20 pure product are subjected to region division according to the wave number range, a main component analysis method is adopted to treat the Raman spectrograms of various regions, and a main component classification three-dimensional scatter diagram is adopted to determine the quantitative analysis Raman feature region. With the explosive CL-20 crystal form quantitative analysis Raman feature region determination method, the Raman spectrogram with characteristics of representativeness and simple and clear peak shape can be obtained, application of the Raman spectroscopy method to carry out crystal form quantitative analysis on the explosive CL-20 is simple and feasible, and the determination result is accurate and reliable.

Description

technical field [0001] The invention relates to a principal component analysis technique for the quantitative analysis of the Raman spectrogram of the explosive CL-20 crystal form, in particular to a method for determining the Raman characteristic region for the quantitative analysis of the explosive CL-20 crystal form. Background technique [0002] Hexanitrohexaazaisowurtzitane explosive CL-20 is a new clathrate compound with high density, high energy, high detonation pressure and high detonation velocity discovered and synthesized in recent years. Under normal temperature and pressure, the explosive CL-20 has four crystal forms of α-, β-, γ- and ε-, and the physical and chemical properties of different crystal forms of CL-20 are different (such as sensitivity, detonation performance, etc. ), and these properties are very important for the application as explosive CL-20. Among the four crystal forms of explosive CL-20, the ε-crystal form has the highest density, the best t...

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Problems solved by technology

[0005] In order to solve the problems of weak Raman spectrum vibration frequency in the quantitative analysis of explosive CL-20 crystal form by Raman spectroscopy in the prior art, complex Raman peak shapes and relatively difficult peak position overlapping and spectrogram analysis, the present invention proposes A method for determining the Raman characteristic region of explosive CL-20 crystal form quantitative analysis

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