Buchi E-800, Operation Manual

Page: 17 / 88

Büchi Labortechnik AG
Product description | 3
Operation Manual UniversalExtractor E-800 17/88
3.1.4 Hot Extraction (with extraction glass chamber universal)
Step 1 extraction
— The sample is located in the extraction chamber.
— The beaker contains the solvent.
—
The solvent is heated, vapor rises up to the condenser, condenses
and drops into the extraction chamber with the sample.
— The magnetic valve is closed, the solvent is collected up to the level
sensor.
— The analyte is extracted.
— The solvent is heated in the extraction chamber, vapor rises up to
the condenser, condenses and drops back into the extraction
chamber.
— The magnetic valve opens regularly to release a small portion of
extract into the beaker.
Step 2 rinsing
— The solvent is heated, vapor rises up to the condenser, condenses
and drops into the extraction chamber with the sample.
—
The magnetic valve is open, the solvent flows back into beaker, the
solvent is not collected.
Step 3 drying
— The solvent is heated, vapor rises up to the condenser, condenses
and flows into tank.
—
The analyte remains in the beaker.