Metrohm 850 Professional IC Anion MSM-HC - LP-Gradient - Manual (Page 71)

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3 Installation
850 Professional IC Anion MSM-HC LP Gradient
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3.21 Guard column
The use of guard columns serves for protecting the separation column and
increasing their service life considerably. The guard columns available from
Metrohm represent either actual guard columns or are so-called guard
column cartridges which are used together with a cartridge holder. The
installation of a guard column cartridge in the associated holder is descri-
bed in the information sheet of the guard columns.
Note
Information regarding which guard column is suitable for your separa-
tion column can be found in the Metrohm IC Column Program
(which is available from your Metrohm agent), the information sheet
provided along with your separation column, the product information
on the separation column at
http://www.metrohm.com (product area
Ion Chromatography), or obtained directly from your agent.
Caution
New guard columns are filled with solution and are sealed on both
sides with stoppers or caps, respectively. Before using the guard col-
umn, you need to ensure that this solution is miscible with the eluents
used (observe manufacturer's data).
Note
The guard column may only be installed after the initial start-up (see
Chapter 4.1, page 64) of the instrument. Until then, use the
6.2744.040 coupling instead of the guard and separation column.
Connecting and rinsing the guard column
1 Connecting the guard column
Caution
When inserting the guard column, always ensure that it is inserted
correctly corresponding to the flow direction (if indicated).