Buchi SpeedExtractor E-914, Operation Manual

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6 Operation
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SpeedExtractor E-916 / E-916XL / E-914 Operation Manual
6 Operation
This chapter explains the operating elements and possible operating modes. It gives instructions on
how to operate the SpeedExtractor properly and safely.
The following table provides a quick overview of main step typically being involved in an extraction:
Overview of main step typically being involved
Step Action Section
1 Create a new method with default operating parameters 6.4.3
2 Preheat the instrument 6.2.3
3 Activate the positions 6.2.4
4 Flush the system (optional) 6.2.6
5 Activating the EcoMode (optional) 6.2.7
6 Prepare the sample 6.3.1
7 Select an extraction cell size 6.3.2
8 Pack the extraction cell 6.3.3
9 Insert the sample and collection vials 6.4.1
10 Run the process 6.4.8
11 Optimize the process (optional) 6.4.7
12 Flush the system with the solvent used for the next run (optional) 6.2.6
6.1 Method development
A method must be developed before beginning an extraction to define the operating parameters for a
run. When developing a new method it is often advisable to collect the extracts of the first three cycles
followed by a vial change for the fourth cycle. If the second collection vial does not contain any analyte
the vial change is shifted between the second and third cycle. Depending on the amount of analyte
found in the second vials, optimization of the extraction time is recommended. For further information
regarding the vial change, see section 6.4.3.
Further information about how to optimize the extraction process is given in section 6.4.7. BUCHI's
SpeedExtractor Application booklet and Application notes give detailed information about method de-
velopment and method parameters for a waste range of applications. Please contact your local dealer
or BUCHI for these documents.