JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Micro-tube and storage plate. View of a pair of forceps placing a micro-tube into a storage plate. Micro-tubes can store 2 microlitres (2 millionths of a litre) of a chemical. When filled, the tubes are sealed and stored in a plate, such as seen here, at - 20 degrees Celsius. The plates are bar coded (not seen here) for indexing purposes. An automatic retrieval system can access the stored chemical by pushing the micro- tube through the storage plate into a retrieval plate. This system can store over 2 million chemicals, and retrieves them quickly & accurately when required. Micro-tubes were developed by the Hoffman-La Roche pharmaceutical company.
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