53 results about "TNT - Trinitrotoluene" patented technology

HPLC methods for detecting, identifying and quantifying munitions compounds or munitions materials are disclosed. Insensitive munitions explosives (IMX) can be detected along with conventional munitions compounds such as 2,4,6-trinitrotolene (TNT) in a single column analysis. The methods are also useful to provide analytical evaluation of soil samples, aqueous samples such as ground water samples and tissue samples containing insensitive munitions explosives (IMX).

The invention discloses a method for detecting p-trinitrotoluene by means of fluorescence sensing. 2,4,6-trinitrotoluene is added to a solution of alkynyl carbazole hyperbranched polymer containing silicon to obtain a solution to be tested , detecting the fluorescence intensity of the solution to be tested, the chemical structural formula of the alkynyl carbazole hyperbranched polymer containing silicon is: the weight average molecular weight of the hyperbranched polymer is 4800-5100 g / mol. The detection method provided by the invention adopts the hyperbranched polymer with higher solubility, and can detect TNT in more organic solvents.

The invention discloses a promoter recEA4 and applications of the promoter recEA4. The promoter provided by the invention is derived from Escherichia coli K-12 MG1655, is named as recEA4, and is DNA molecules shown by the sequence 1 of the sequence table. The invention also protects the DNA molecules (fusion DNA), sequentially comprising the DNA molecules shown by the sequence 1 of the sequence table and reporter genes from the upstream to the downstream. The invention also protects recombinant plasmids comprising the fusion DNA. The invention further protects recombinant bacteria obtained by importing the recombinant plasmids into host bacteria. The recombinant bacteria are a biosensor for detecting 2,4,6-trinitrotoluene. The biosensor provided by the invention can be used for detecting and identifying the position of the explosive, such as the mine during the wartime and after the war, and moreover, a novel method is provided for detecting TNT in the soil and the water environment.

The invention discloses a high-energy insensitivity energetic compound and a synthesis method thereof. The method comprises the steps 4-nitro-1H-pyrazole-3,5-dicarboxylic acid dimethyl ester is takenas raw material, and an intermediate object is obtained under the catalytic action of metal sodium through a one-pot synthesis method with aminoguanidine hemisulfate salt; the intermediate body is oxidized in an oxidation system to obtain a target product. The method has the advantages that the method is simple, the reaction steps are less, the yield is higher, the separation method is simple, thepractical measuring density of an ultimate product 4-nitro-3,5-bis(1H-1,2,4-triazole-3-nitro)-1H-pyrazole reaches 1.865g cm<3>, the theoretical detonation velocity of the ultimate product predicted by a BKW state equation is 8747m / s, the theoretical detonation pressure is 33.0 GPa, which are close to cyclotrimethylene trinitramine (RDX, detonation velocity:8841 m / s, detonation pressure 34.9 GPa),the testing impacting insensitivity is 30J, which is lower than the RDX (7.4J) and 2, 4, 6-trinitrotoluene TNT (15J), and the compound has wider application prospects in the field of high-energy insensitivity energetic materials.