Kuderna-Danish evaporative concentrators are used to concentrate trace amounts of sample dissolved in organic solvents. The Snyder column is designed to speed evaporation with minimal hold-up.

The jacketed tip creates an insulated air space around the constricted end of the tube. This protects the sample and provides a temperature cushion that prevents the sample from being overly concentrated. Jacketed concentrator tubes provide a larger window of time for a safe and controlled removal of heat sources. 2 Keck Clamps are included.

Proper safety precautions should always be followed. If solvent vapors are allowed to escape, the entire apparatus should be placed in a well-ventilated fume hood.