Section 6.2 – Metrohm 833 IC Liquid Handling Unit User Manual
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6.2 Connection to modular IC system for cation separation
833 IC Liquid Handling Unit / Instructions for Use 8.833.1003
43
7. The sample queue to be processed then contains the following
entries, for example:
System Ident
Vial Chrom.
No.
1
Start-Neutralisation.smt dummy 1
-
2
Neutralisation.smt Sample
1
1
1
3
Neutralisation.smt Sample
2
2
2
4
Neutralisation.smt Sample
3
3
3
5
Neutralisation.smt Sample
4
4
4
6
Neutralisation.smt Sample
5
5
5
7
End-Neutralisation.smt dummy 5
-
This example shows the processing of a sample series with 5 samples.
the 'Chrom. No.' column is only used for information.
6.2
Connection to modular IC system for cation
separation
A further application for the 833 IC Liquid Handling Sample Preparation
Unit is the separation of cations before injecting the sample onto the
separation column (e.g. separation of heavy metals). A system for the
determination of anions with chemical suppression is described, in
which the direct transfer of the sample to the sample preparation
module with subsequent transfer of the treated sample to the injection
valve is planned. This is why the necessary instrument configuration
corresponds to that of the Modular IC System 2 (MIC 2 Advanced:
anion system with chemical suppression), extended by the 833 IC
Liquid Handling Unit.
If you are not certain whether the capacity of the sample preparation
module is sufficient for your application then, for more strongly polluted
samples which require matrix elimination and enrichment, you should
use such a system as that described in Section 6.1.
The electrical connections of the system described above to the 766 IC
Sample Processor with complete control by the «IC Net 2.3» software
is described below.