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Related Concept Videos

Fixation and Sectioning01:03

Fixation and Sectioning

Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...

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Apparatus for sectioning diffusion specimens in liquid nitrogen.

R Weil1, D Lazarus, F Witt

  • 1Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.

The Review of Scientific Instruments
|May 1, 1979
PubMed
Summary
This summary is machine-generated.

This study details an apparatus for sectioning samples in liquid nitrogen. The abrasion method is used for samples containing radioactive tracers.

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Cryogenics

Background:

  • Precise sample preparation is crucial for analyzing materials with incorporated radioactive tracers.
  • Traditional sectioning methods can be challenging at cryogenic temperatures.

Purpose of the Study:

  • To describe the design and operational principles of a novel apparatus for cryogenic sample sectioning.
  • To demonstrate the effectiveness of abrasion for sectioning samples containing radioactive tracers in a liquid nitrogen environment.

Main Methods:

  • Design and construction of a specialized apparatus for sample manipulation and sectioning within a liquid nitrogen bath.
  • Utilizing an abrasion technique for sample sectioning.
  • Incorporating radioactive tracers into samples for analysis.

Main Results:

  • The apparatus successfully enables sectioning of samples at liquid nitrogen temperatures.
  • The abrasion method proved effective for sectioning samples containing diffused radioactive tracers.
  • The design allows for controlled and precise sample preparation under cryogenic conditions.

Conclusions:

  • The developed apparatus provides a viable solution for sectioning samples in liquid nitrogen.
  • Abrasion is a suitable technique for preparing cryogenic samples with radioactive tracers for further analysis.
  • This method facilitates advanced material characterization at low temperatures.