Operation – Leica Biosystems VT1000 P User Manual

Page 37

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37

Leica VT1000 P

5. Operation

If the specimen requires a larger surface, you

can use specimen tray (39053744) or the deluxe

specimen bath (39053745).

Specimens small enough to fit on a surface

of a specimen mounting block can be affixed

directly.
The specimen mounting block is then clamped

into the jaws of the specimen holder for

sectioning.

Fig. 45

Adhesive Mounting

(continued)

For specimens that are insufficiently rigid in unfixed condition for adhesive mounting, prior

fixation may be performed if not detrimental to the phenomenon or process for which speci-

mens are being studied. Alternately, the specimens may be encapsulated in a support medi-

um such as agar, gelatin, or paraffin. The block of support medium, together with the speci-

men, may be trimmed to size and adhesive mounted upon solidification.
Note that in all cases requiring adhesive mounting, thickness of the specimen should be

kept as small as practical to maximize rigidity. Create a uniform, level surface with a cursory

manual processing; this will reduce the time needed for cutting the specimen to size using

the blade.

5.3.3 Selecting and inserting the blade

Depending on the type of specimens sectioned, the type and brand of blades may affect

the instrument performance.

Before either type of blade is used for sections, it must be cleansed thoroughly of oil

or silicone residue. To do so, we recommend placing the blade in a xylene bath for

approximately 10 minutes, then flushing it with acetone and allowing it to air dry.

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