Developed for the concentration of trace amounts of sample dissolved in organic solvents

Preparation involves filling the flask between 40 to 60% of capacity. To prevent sample loss initially, the column should be pre-wet with about 1ml of the solvent used in the concentration. Column is designed to speed evaporation with reduced hold-up.

Charged assembly should be placed over a vigorously boiling water bath. Water level should be maintained just below the lower [ST] joint and the apparatus mounted so that the lower rounded surface of the flask is bathed in steam.

Note: If solvent is allowed to escape, the entire assembly should be set up in a hood.

Useful in sample preparation before analysis with solvents such as petroleum ether or hexane.