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To best establish protocols for specimen movement control, a system of documentation can be set up to monitor and control collections. [citation needed] At the National Museum of Natural History, theft is prevented by maintaining limited access to where collections are stored. In the event of a specimen leaving the site through outgoing loans ...
A biological specimen (also called a biospecimen) is a biological laboratory specimen held by a biorepository for research. Such a specimen would be taken by sampling so as to be representative of any other specimen taken from the source of the specimen. When biological specimens are stored, ideally they remain equivalent to freshly-collected ...
Plant collecting is the acquisition of plant specimens for the purposes of research, cultivation, or as a hobby. Plant specimens may be kept alive, but are more commonly dried and pressed to preserve the quality of the specimen. Plant collecting is an ancient practice with records of a Chinese botanist collecting roses over 5000 years ago. [1]
For some plants it may prove helpful to allow the fresh specimen to wilt slightly before being arranged for the press. An opportunity to check, rearrange and further lay out the specimen to best reveal the required features of the plant occurs when the damp absorbent sheets are changed during the drying/pressing process. [citation needed]
[1] [2] One definition is "an organized collection of human biological material and associated information stored for one or more research purposes." [3] [4] Collections of plant, animal, microbe, and other nonhuman materials may also be described as biobanks but in some discussions the term is reserved for human specimens. [3]
(i) Collection or accession occurs when a specimen arrives at the biorepository. Information about the specimen is entered into the laboratory information management system ("LIMS"), which tracks information about all of the specimens in the biorepository. Typical information linked to a specimen would be the specimen's origin and when it ...
Specimen storage in the wooden cabinets, showing the traditional vertical filing system for preserved plant sheets. These handcrafted cupboards, characteristic of the older wings, store thousands of mounted specimens in organised compartments. The size of the collection has been a subject of historical interest.
The volume of the bath should be 10 times that of the specimen. The acetone is renewed two times over the course of six weeks. The acetone draws out all the water and replaces it inside the cells. [5] In the third step, the specimen is then placed in a bath of liquid polymer, such as silicone rubber, polyester, or epoxy resin.