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6 mounting the capillary, Mounting the capillary – Metrohm Multi-Mode Electrode pro User Manual

Page 43

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5 Maintenance

6.1246.120 Multi-Mode-Electrode pro

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35

5.2.6

Mounting the capillary

Caution

In this procedure mercury is used. Always carry out the following steps
in a dry drip pan.

There are two types of capillaries which can be mounted into the MME
pro, depending on the application:

Silanized capillaries (6.1226.050) are especially suitable for voltammet-
ric determinations at the HMDE in acidic to slightly alkaline solutions
which do not contain organic solvents.

Non-silanized capillaries (6.1226.030) are especially suitable for polaro-
graphic determinations at the DME or SMDE and for voltammetric
determinations at the HMDE in all types of solutions, especially alkaline
solutions with pH>10 or in solutions containing solvents, where silan-
ized capillaries cannot be used.

Mounting the capillary

To carry out this procedure you need the MME pro and the following
accessories:

Drip pan (6.2711.030)

Electrode stand (6.2615.130)

Wrench (6.1247.220)

Silanized capillary (6.1226.050) or non-silanized capillary (6.1226.030)

Seal (6.1247.150)

Scissors

Caution

In this procedure mercury is used. Always carry out the following steps
in a dry drip pan.