Leica (Balzer) CPD030

Critical point dryer for SEM samples

Drying water-containing biological specimens in air or under vacuum can drastically alter their structures or even destroy them completely. Drying of biological specimens such as pollen, tissue, plants, and insects for SEM analysis can be done in the Critical Point Dryer.

The procedure of critical point drying is an efficient method for drying delicate samples. It preserves the surface structure of a specimen which could otherwise be damaged due to surface tension when changing from the liquid to gaseous state. Before drying, many biological samples are commonly prepared through fixation and dehydration steps. Following CPD specimens are sputter coated metals such as gold, platinum or Carbon to make their surfaces electrically conductive for SEM analysis.

Features

  • Easy operation
  • Easy specimen loading
  • Gentle specimen treating
  • Automatic cooling/heating system

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