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116 results about "Metabolic state" patented technology

A kind of preparation method of chloramphenicol residual freeze-dried powder standard sample in carp muscle

The invention provides a preparation method for a standard sample of chloramphenicol residual matrix lyophiled powder in the muscle of a carp, which belongs to the technical field of animal food matrix standard substances in the residual detection of veterinary medicines. The problem that the bigger difference exists between the result of treatments such as extraction, purification and the like and a daily analytical sample as the condition of combining a target object with a matrix and a really detected sample are not consistent completely is solved. The method comprises the following steps of: carrying out cultivation and addition on a live carp by adopting chloramphenicol, so that the chloramphenicol is contained in carp in vivo, culturing the carp in water which does not contain a medicine until the medicine concentration in vivo reaches a stable metabolic state, fishing the carp, quickly freezing the carp to a temperature below -18 DEG C, unfreezing the frozen carp at a room temperature, taking a muscle part to homogenate to make into minced fillets, freezing, drying, screening and bottling the minced fillets, and encapsulating the minced fillets in a vacuum way, so as to prepare and obtain the standard sample of the chloramphenicol residual lyophiled powder in the muscle of the carp. The chloramphenicol concentration in the prepared standard sample is 1.0-10.0 [mu]g / kg.
Owner:时文春
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