Metrohm 833 IC Liquid Handling Unit - Manual (Page 46)

6 833 IC Liquid Handling Sample Preparation Unit
833 IC Liquid Handling Unit / Instructions for Use 8.833.1003
38
6.1.2 Connection of the sample preparation module
The following description assumes the use of a 2.820.0X20 IC
Separation Center (2-channel system).
The 1.793.0110 Sample Preparation Module must first be inserted in the
820 IC Separation Center and then connected to the basic instrument
of the 833 IC Liquid Handling Sample Preparation Unit (833 Sample
Preparation in Fig. 12). The 1.753.0100 Suppressor Module of the IC
Liquid Handling Suppressor Unit is also inserted in the Separation
Center and connected to the relevant basic instrument (833
Suppressor in Fig. 12). This is described in detail in Section 5.
The components are connected as shown below; this also shows the
sample flow scheme:
The inlet and outlet capillaries mounted on the sample preparation
module are connected up as follows:
A) Sample loop at valve B
is filled.
B) Sample is neutralized
in Sample Preparation
Module; anions are
enriched at valve A.
C) Enriched anions are
transferred to the
separation column.
B
Fill Inject
A
SP
Module
A
MSM
B
Inject Fill
A
SP
Module
A
MSM
B
Inject Inject
A
SP
Module
A
MSM
H
2
O Regenerant Regenerant Eluent H
2
O H
2
O
H
2
O Regenerant Regenerant Eluent H
2
O H
2
O
H
2
O Regenerant Regenerant Eluent H
2
O H
2
O
833
SP
818
833
Suppr.
833
Pump
833
SP
818
833
Suppr.
833
Pump
833
SP
818
833
Suppr.
833
Pump
Column
Column
Column
Sample
Sample
Sample
Enrichment-
column
Enrichment-
column
ichment-
column