Roche Diagnostics
Instructions for Use · Version 10.0 57
9180 Electrolyte Analyzer 4 Theoretical foundation
Electrode specifications
Electrode specifications
Sodium electrode
The sodium electrode is a glass capillary electrode used for in vitro diagnostic
measurement of sodium ions present in fluid samples. It is designated with a Na
+
marking on the top surface of the housing.
Construction
Figure 4-3 Sodium electrode
Use and care
Sodium electrodes are manufactured for use in 9180 Electrolyte Analyzers.
Proper care should be used in handling and storage of the electrode. Never use strong
or abrasive cleaners such as alcohol or amphyl on the electrode since these will
damage the plastic housing.
Store the electrode in a clean, dry place only after the electrode has been cleaned and
rinsed with distilled water and dried with a lint-free cloth.
The o-ring seal should be installed in the electrode during storage.
Electrode housing:
transparent acrylic plastic
Measuring capillary:
sodium selective glass
Electrolyte chamber:
airtight, filled with electrolyte solution for Na
+
electrodes
Pin connector:
silver, silver chloride (Ag / AgCl)
A Glass capillary E Inner electrode
B Marking F Connecting pin
C O-ring seal G Marking - serial number - 5 digit lot number
D Electrolyte chamber
A
C
D
F
G
B
E
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