5 eluent degasser, Eluent degasser, Figure 19 – Metrohm 872 Extension Module IC Pump User Manual
Page 36: See chapter 4.5, On the eluent bottle (18-10), 12) onto the bottle attachment (18-11)
4.5 Eluent degasser
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872 Extension Module IC Pump
5
Eluent
6
Aspiration filter 6.2821.090
7
Filter holder
From accessory set 6.2744.210.
8
Clamping screw
From accessory set 6.2744.210.
9
Tubing weighting
From accessory set 6.2744.210.
10 Eluent bottle 6.1608.070
11 Bottle attachment 6.1602.160
12 SGJ clip 6.2023.020
13 Tubing nipple
14 Thread stopper
4.5
Eluent degasser
Gas bubbles in the eluent lead to an unstable baseline, as high pressure
pumps can transport liquids, but not gases. The eluent therefore has to be
degassed, before it reaches the high pressure pump.
The eluent degasser removes gas bubbles and dissolved gases from the
eluent. For degassing, the eluent flows into a vacuum chamber through a
special fluoropolymer capillary.
Note
The eluent degasser is already installed in the newly delivered instru-
ment. The following installation instructions need not be carried out at
the time of initial installation.
Connecting the eluent degasser
5
6
1
2
3
4
Figure 19
Eluent degasser
1
Eluent degasser input
2
Eluent degasser output