Kit for quickly detecting water-soluble explosive and detecting method of kit
A water-soluble, kit-based technology, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the misjudgment of the source and type of explosives, and affect the normal detection of cases, etc. problem, to achieve the effect of short detection time, simple structure and easy portability
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Embodiment 1
[0055] Utilize the test kit of the present invention to detect that water-soluble explosives are water-soluble explosive precursors and explosive residues:
[0056] Potassium permanganate detection
[0057] The aqueous solution of potassium permanganate is purple, use deionized water to dissolve the test substance to judge whether it contains potassium permanganate, first dissolve as much test substance as possible with reagent 1 (deionized water) 15mL, fully shake for 2min, Stand still; if the water phase of the liquid to be tested is colorless, it does not contain potassium permanganate, and then the nitrate, nitrite, chlorate, ammonium, urea, sugar, sodium The detection of ions or potassium ions, and the detection of nitrate, nitrite, chlorate, ammonium, urea, chloride, sulfide, sulfate, phosphate, sugar, sodium or potassium in water-soluble explosive residues detection;
[0058] If the solution is purple or light purple, then the analyte contains potassium permanganate. ...
Embodiment 2
[0060] Ammonium detection:
[0061]
[0062] Ammonium root can react in alkaline potassium iodomercurate to generate aminomercuric iodide, which is an orange-yellow precipitate. When detecting ammonium root, it is necessary to first carry out the detection of potassium permanganate according to Example 1;
[0063] Then select reagent 6 (potassium hydroxide 1-3mol / L, saturated potassium iomercurate at room temperature, solvent is deionized water), detect whether the liquid to be tested contains ammonium root, and slowly drop reagent 6 with a rubber dropper Add 1-2 drops to the solution to be tested, if orange precipitate appears in the solution to be tested, it means that the solution to be tested contains ammonium radicals; if there is no obvious phenomenon, the solution to be tested does not contain ammonium radicals.
Embodiment 3
[0065] Urea detection:
[0066]
[0067] Urea can react with p-dimethylaminobenzaldehyde to generate a kind of imine, and the product is dark yellow. When detecting urea, it is necessary to first detect potassium permanganate according to Example 1;
[0068] Then select reagent 7 (o-methylaminobenzaldehyde powder) to detect whether urea is contained in the liquid to be tested, take a spoonful of reagent 7 with a small medicine spoon, dissolve it in 2 mL of absolute ethanol, then add 2-3 drops of concentrated hydrochloric acid, and use glue Take 2-3 drops of the test solution from the tip dropper and slowly add it to the newly prepared test reagent. If the color of the solution turns yellow or gradually deepens, it means that urea exists in the test solution; if there is no obvious phenomenon, it means that the test solution does not contain urea. urea.
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