2 results about "Triple quadrupole mass spectrometry" patented technology

The invention belongs to the technical field of food analysis, and relates to a method for rapidly determining streptomycin and dihydrostreptomycin in honey by a hydrophilic interaction chromatography-tandem mass spectrometry. The method is achieved by the following steps: (1) sample pretreatment: weighing a sample and adding an extracting solution, performing vortex mixing until the honey is completely dissolved, ultrasonically extracting, adjusting the volume with the extracting solution after taking out, uniformly shaking, filtering to obtain a filtrate to be ready for use, and purifying toobtain a solution to be detected; (2) preparation of a standard stock solution and a standard working solution; (3) preparation of a matrix matching working solution; (4) sample analysis and detection: qualitatively and quantitatively detecting and analyzing the solution to be detected by a hydrophilic interaction chromatography-triple quadrupole mass spectrometry; (5) drawing a standard curve, and then detecting and analyzing the solution to be detected by an ultra-high performance liquid chromatography-tandem mass spectrometer. The method provided by the invention has the advantages of shortening the inspection time, improving the detection efficiency, reducing the detection cost, avoiding the pollution of an ion pair reagent to the chromatogram and the mass spectrum, and having highersensitivity.