69 results about "Specimen preservation" patented technology

The invention provides a specimen transportation, storage, freshness preservation and heat preservation device and a method thereof, and relates to the technical field of specimen storage and transportation. The specimen transportation, storage, freshness preservation and heat preservation device comprises a box body, a heat preservation layer is connected to the inner side of the box body in an embedded mode, a plurality of ice bag grooves are evenly formed in the top end of the heat preservation layer, and underframes are connected to the inner sides of the ice bag grooves in an embedded andsliding mode. According to the specimen transportation, storage, freshness preservation and heat preservation device and the method thereof, rotating heads are rotated to enable embedded screw rods to be gradually rotated out of threaded grooves, so that a sealing cover is away from the box body, and then specimens are taken out and placed at a designated position; then a fixing ring frame is gradually lifted along a ring frame groove by pulling handrails in adjusting grooves upwards, and meanwhile the underframes drive ice bags to be gradually moved out of the ice bag grooves, so that the ice bags in all the ice bag grooves can be taken out by workers at a time; and then ice bags on the inner bottom side of the box body and ice bags inside the sealing cover can be taken out by pulling out pulling plates again through handles, so that the use experience for using the device by the workers is conveniently improved, and the ice bag unloading efficiency of the workers is improved.

The invention relates to a novel animal specimen preservation gel as well as a preparation method and use thereof and belongs to the field of environment-friendly novel materials. The gel is prepared from the raw materials in percentage by mass: 1-10% of acrylamide compound, 15-30% of Tris-HCl, 0.1-0.5% of N,N-methylene-bis-acrylamide, 5-20% of sodium lauryl sulfate, 0.5-1.0% of ammonium persulfate and 38.5-78.5% of solution which is prepared from water and has the pH of 3.5-5.0. The pH is 3.5-5.0, so that animals and plants are effectively inhibited from breeding bacteria and molds; the animal specimen preservation gel disclosed by the invention has good effects on preservation, fixation, sterilization and corrosion prevention; the preservation gel is simple and convenient to prepare, the raw materials are all low-toxicity environment-friendly chemicals, and the injury / harm to the human / environment is little, so that the gel is a very good product for producing an animal / plant specimen and is convenient to transport.

The present invention provides a method for optimizing the preservation of pathological gross specimens, which includes the following steps: (1) taking out the specimens stored in traditional fixative solution, soaking them in 10% neutral formalin for one week; (2) taking out the specimens, Rinse with tap water overnight to remove formaldehyde in the tissue; (3) Place the specimen in a container filled with 80% ethanol for 6‑8 hours; (4) Take the specimen out of the container in step (3) , soaked in 95% ethanol for two hours; (5) soaked in 20% sodium glycerol acetate solution for one week to dissolve the ethanol in the specimen and separate the precipitate in the specimen; (6) Take out the specimen, Place the specimens in an acrylic container filled with freshly prepared 20% sodium glycerol acetate preservation solution for long-term preservation. The invention not only improves the refractive index of the liquid, meets the needs of digital photography, but also ensures that the preservation liquid has better fluidity and permeability, and avoids the situation that a large number of bubbles cannot overflow.