| 摘要 |
Some of the blind holes ( 6 ) between indentations ( 4 ) of a heating surface ( 3 ) contain lifting elements ( 7 ) which, after opening of a cover, release a microtitre plate ( 13 ) from the heating surface ( 3 ) and raise said microtitre plate about 2 to 3 mm, so that it can be removed without application of force. Each lifting element ( 7 ) consists of a coil spring ( 8 ) and a contact pin ( 9 ) made of, for example, PEEK which is inserted into said coil spring and presses with a round flat abutting surface ( 12 ) against the lower surface of the microtitre plate ( 13 ). The spring constant of the lifting element ( 7 ) is about 6 N/mm.
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