Details

3922 PYREX® Modular II Continuous Heavier than Water Liquid/Liquid Extractor or Liquid/Liquid Extractor/Concentrator System

These versatile 1L PYREX® continuous extractor systems are for use with solvents of heavier specific gravity than sample liquid being extracted. Using modular components make these components easier to clean and maintain and gives more flexibility. These systems are designed to meet EPA test method requirements outlined by SW-846, RCRA, and CLP. Extraction can be performed outside the hood. However, as dictated by safe laboratory practices, we recommend that some type of ventilation system be used above or near the units in case of a drop in condenser water temperature or lossof condenser cold water supply.

Because this system uses modular components it can be configured as two different systems:

The Continuous Liquid/Liquid Extractor uses a plain Column Sidearm (Cat. No. 3928-MSAO) and 500 mL Round Bottom Flask (Cat. No. 5320-500). The crossover tube is fitted with a Teflon® stopcock to impede flow to the round bottom flask when changing over from base or neutral extractions to acidic extractions or at the end of the run.
• The Continuous Liquid/Liquid Extractor/Concentrator uses a Snyder Column Sidearm (Cat. No. 3928-MSCO) and a Kuderna-Danish Flask (Cat. No. 2158-500FO) with a Collection Tube (Cat. No. 2158-500FO). Allows the use of the same solvent for both basic and acidic extractions. This system does not require an apparatus change to swtich from extracting to concentrating. As a result, it reduces sample handling and overall technician time required.

Assembling th ecomplete system requires purchasing 8 separate components: the extractor body, a condenser, a crossover tube, a sidearm column and receiver flask as well as small and large ball joint clamps and Viton O-rings.