S-1816 Extraction Apparatus - Liquid-Liquid

This liquid-liquid concentrator extraction apparatus has design modifications, made by Erin R. Moe of DSB chemicals, which allow for solvent recycling following extraction, and continuous drying through out the extraction. To compensate for the added length from the drying tube, the side arm elbow with Snyder column attaches directly to the drip spout union, and the kuderna-danish height is shortened. Another modification includes the addition of a 2mm stopcock at the bottom of the side arm, which following extraction, allows for the transfer of excess solvent to the flask, the complete removal of the extraction chamber, and the subsequent solvent recovery. For solvent recovery both stopcocks are closed, the extraction chamber is removed and the collecting adapter is attached to the drip spout union. Condensed solvent passes to are cycle container through 1/8″ Teflon tubing connected to the collecting adapter.

This extraction unit:
o Satisfies EPA methods for solvent extraction of aqueous samples.
o Eliminates multiple transfer of the sample for drying and concentration.
o Requires less glassware, which saves set-up time, clean-up time and space.
o Allows for one step solvent-recovery and recycling.