Ion Selective Electrode for Cupric

Cu²⁺

Technical Data Sheet

Structure of the Electrode

range^*:

10^-6 to 10^-1 mole cupric
0.1 to 6,000 mg/L cupric

The iRAS cupric selective electrode is an solid state membrane electrode. The chloride selective membrane is made from a highly pressed Cu₂Se/Ag₂Se sensor element embedded in a plastic shaft by means of a special resin.
A silver contact layer and a shielded cable is used for potential discharge.

Ordering Information

PO No.	Type	Description
112 100	Cu	selective electrode with 1m sealed cable
112 101	Cu	selective electrode with 1m sealed cable with BNC connector
112 102	Cu	selective electrode with 1m sealed cable with DIN connector
112 005	Cu	selective electrode with indutrial threaded head
112 004	Cu	selective threaded mini electrode with BNC connector

slope of characteristic:

27 (+-)2 mV/pCu

response time in 10^-2mole,
600 mg/L cupric solution:

< 30 sec

drift within 30 minutes:

0.3 mV

drift within 24 hours:

1 mV

concentration of interfering ion species:

Halogenides: 5 10² times
Pb²⁺: 2 10² times
Zn²⁺: 5 10³ times
Cd²⁺: 5 10³ times
S^2-: affects solution to be analysed
Hg²⁺, Ag⁺: interfere in traces (precipitation)

pH range:

5 - 8

temperature range:

0 - 80 °C

resistance:

< 0.1 MOhm

sensor material:

Cu₂Se/Ag₂Se die-pressed

shaft material:

plastic

dimensions:

immersion depth 120mm
diameter 12 mm