Metrohm 793 IC Sample Preparation Module - Manual (Page 22)

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
18
2.4 Connection to a Modular IC System for
Cation Elimination
A second application for the 793 IC Sample Prep Module is cation
elimination before chromatographic separation of the sample on the
column (e.g. precolumn elimination of heavy metals). In this section a
system for determination of anions with chemical suppression is
described. It includes the application of the sample to the SP Module A
followed by filling the sample loop with this pretreated sample.
Therefore, such an IC system corresponds to the Modular IC System
2 (MIC 2: Anion system with chemical suppression) enhanced by the
793 IC Sample Prep Module.
If you are not sure about the required capacity for complete cation
elimination and/or if the sample requires matrix elimination and precon-
centration in combination with cation elimination by the SP Module A, a
system as described in section 2.3 should by used.
The following pages describe the electronic connections of this system
in combination with the 766 IC Sample Processor on the base of full
control by «IC Net 2.1».
2.4.1 Electrical connection
The 793 IC Sample Prep Module is connected to an IC system
consisting of 732 IC Detector, 733 IC Separation Center (one injector +
MSM), 709 IC Pump, 752 IC Pump Unit and 762 IC Interface as shown
in Fig. 5.
793
752 762
733
709
732
PC
6.2134.100
6.2134.080
6.2134.090
6.2128.130
6.2143.210
6.2115.070
6.2125.120
6.2125.090
6.2141.110
6.2128.180
6.2128.180
Abb. 8: Connection 793 IC Sample Prep Module -
Modular IC System for cation elimination