Xylem ISE Electrodes Br 60 - Handbuch (Seite 15)

Interferences
• Complexes with Bi
3+
, Cd
2+
, Mn
2+
, Pb
2+
, Sn
2+
, Tl
3+
• Reducing agents
• Interfering ions: 10 % error with the following ratios of
concentration: (Ratio of concentration = Interfering ion /
Measuring ion)
Aging
Please note that every electrode undergoes a natural aging
process. The response time increases and the slope
decreases with the age of the electrode. The following
factors shorten the lifetime considerably:
• Incorrect storing
• Special measuring conditions (e.g. organic solutions,
frequent measuring with high concentrations of
interfering ions)
• High temperatures
• High changes in temperature
The warranty does not cover damage caused by measuring
conditions and mechanical damage.