Injection Valve; Figure 11 Pulsation Absorber - Metrohm 930 Compact IC Flex Oven/ChS Manual

3.10 Injection valve

1 Connection capillary
Connection to inline filter.
3 Pulsation absorber (6.2620.150)
5 Connection capillary
Connection to injection valve.
3.10 Injection valve
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26
Figure 11 Pulsation absorber
The pulsation absorber is completely connected. No installation work is
required.
The injection valve connects the eluent path to the sample path. By a
quick and precise switching of the valve a defined quantity of sample solu-
tion is injected and flushed to the separation column with the eluent.
The quantity of sample solution injected is determined by:
the volume of the sample loop or
￭
by an 800 Dosino when the Metrohm intelligent Partial Loop Injection
￭
Technique (MiPT) is used.
The choice of sample loop depends on the application. The following
sample loops are normally used:
Table 1 Which sample loop do I need?
Application
Cation determination
Anion determination with suppression
Anion determination without suppression
MiPT
2 PEEK pressure screws, short
(6.2744.070)
4 Holder for pulsation absorber
930 Compact IC Flex Oven/ChS (2.930.2200)
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Sample loop
20 µL
20 µL
100 µL
250 µL