Quick detection method for pyrethroid pesticide residue
A technology for pyrethroids and pesticide residues, applied in chemical method analysis, measuring devices, and material analysis through observation of the impact on chemical indicators, can solve problems such as low cost, impossibility, and long detection cycle, and achieve Quick and easy effects
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[0007] The detection steps of the rapid detection method for pyrethroid pesticide residues of the present invention are as follows: (1) extract the detected object: grind the detected object containing pyrethroid pesticide residues and put it into the reactor after being weighed; (2) Decomposition and gas production reaction: first use a strong alkaline reagent to decompose the pyrethroid pesticide residues in the test object into cyanide-containing compounds, then add solid particles made of sodium borohydride and adsorption matrix to mix with the test object, and finally Add sulfuric acid solution into the reactor, and react with the solid particles to produce a large amount of gas instantly. (3) Color reaction: the decomposed gaseous components are introduced into the absorber and absorbed by the absorbing liquid in the absorber, the absorbing liquid is a composite agent composed of chloramine T isonicotinic acid and pyrazolone . The generated gas reacts with the specific ...
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