Method for determining contents of TATB and HMX in explosive wastewater

A determination method and technology for explosive waste water, which can be applied to measurement devices, instruments, scientific instruments, etc., and can solve problems such as accidental explosions, indistinct absorption peaks, and limitations.
CN112326844APending Publication Date: 2021-02-05SHANXI BEIHUA GUANLYU CHEM IND
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANXI BEIHUA GUANLYU CHEM IND
Publication Date
2021-02-05

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Abstract

The invention belongs to the technical field of explosive detection, and relates to a method for determining the contents of TATB and HMX in explosive wastewater. The determination method provided bythe invention comprises the following steps of: by taking acetonitrile as a solvent, preparing an explosive containing HMX and TATB into a to-be-determined solution,or taking explosive wastewater as the to-be-determined solution; carrying out liquid chromatographic analysis on the to-be-detected liquid to obtain a liquid chromatogram; and calculating the contents of the obtained TATB and HMX according to the liquid chromatogram information. The conditions of liquid chromatographic analysis are as follows: a ZORBAX SB-C18 chromatographic column is adopted a chromatographic column; a mobile phase is an acetonitrile aqueous solution, the volume ratio of acetonitrile to water is 55: 45-65: 35; isocratic elution is adopted; an ultraviolet absorption detector is adopted a detector; and the detection wavelengths of the TATB and the HMX are 354 nm and 265 nm respectively; . According to the method disclosed by the invention, the contents of the TATB and HMX can be determined by adopting reversed-phase liquid chromatography.
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Description

technical field

[0001] The invention relates to the technical field of explosive detection, in particular to a method for determining the content of TATB and HMX in explosive wastewater. Background technique

[0002] TATB (triaminotrinitrobenzene) is very insensitive to heat, friction and impact, and has good thermal stability and impact sensitivity, but TATB is almost insoluble in organic solvents, which limits its application; HMX (Oktojin) High energy, good thermal stability, but poor sensitivity, prone to accidental detonation due to high temperature, impact and other stimuli, both are widely used in weapons and equipment. Explosive wastewater often contains TATB and HMX at the same time, and the content of these two components must be analyzed in the wastewater recovery process, but the current existing technology only has a detection method for HMX, which uses acetonitrile / methanol / water as the mobile phase , HMX is measured at 230nm, while TATB has no obvious absorpt...

Claims

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