Metrohm 850 Professional IC Anion MCS Prep 2 - Manual (Page 20)

2.3 Flow diagram
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850 Professional IC – Anion – MCS – Prep 2
8 Install sample path connections.
￭ Connect the sample degasser (if required) (see Chapter 2.13,
page 43).
￭ Installing sample preparation (see Chapter 2.3, page 10).
￭ Connect sample path connections to the injection valve (see
Chapter 2.14.2, page 45).
9 Installing the MSM (see Chapter 2.16, page 50) – with associated
peristaltic pump (see Chapter 2.17, page 53).
10 Connect the MCS (see Chapter 2.18.2, page 58).
11 Connect detector capillaries (see Chapter 2.19, page 61).
12 Mains connection (see Chapter 2.20, page 64).
13 Connect the instrument to the PC (see Chapter 2.20.1, page 64).
14 Initial start-up (see Chapter 3.1, page 69).
15 Install the guard column (if used) (see Chapter 2.21, page 65).
16 Install the separation column (see Chapter 2.22, page 67).
2.3 Flow diagram
Figure 2 Flow diagram for matrix elimination with transfer procedure and
Figure 3 Flow diagram for standard addition with preconcentration.
show the flow paths for two with the 2.850.2150 performable analysis
technologies. The paths for sequential suppression (MSM (2-9) and MCS
(2-10)) are also shown for both approaches. Liquid containers (eluent bot-
tle, sample vessel, waste container, auxiliary solutions container) and
guard column are not shown in the diagram (see Chapter 2.21, page
65). The arrangement of the modules in the diagram corresponds to the
front view of the instrument. Which pressure screws, connections and
couplings are used, is described in the installation chapters of the individ-
ual modules.
Matrix elimination with transfer procedure
This sample preparation technology is applied when the sample matrix
could damage the separation columns (and the analyte ion content is in
the ppm range).