Method of simultaneously detecting residues of different types of veterinary drugs in fish meat
A technology for veterinary drug residues and fish meat, which is applied in the field of detection of drug residues in food, can solve problems such as consumption of organic reagents, loss of target streams, and complicated processes, and achieve the effects of improving recognition ability, improving efficiency, and saving resources
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[0051] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0052] The following specific examples take 42 fresh and healthy-looking porphyry carving samples from different markets in the local (Qingdao, China) as an example for simultaneous detection of multiple veterinary drug residues.
[0053] (1) Reagents and materials:
[0054] All powder or liquid veterinary drug standards were purchased from Dr. Ehrenstorfer Gmbh (Augsburg, Germany), Witega (Berlin, Germany), Sigma-Aldrich (St. Louis, MO, USA) or USPharmacopeia (Rockville, MD, USA) ); Acetonitrile (LC-MS grade) and methanol (LC-MS grade) were purchased from Merck (Darmstadt, Germany); formic acid and acetic acid were purchased from Sigma-Aldrich (St. Louis, MO, USA); ethylenediaminetetraacetic acid two Sodium salt (EDTA-Na 2 , Analytically pure) was purchased from Sinopharm Group (Shanghai, China); ultrapure water was prepared by Milli-Q System (Millipore,...
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