Ion Selective Electrode for Bromide

Br^-

Technical Data Sheet

Structure of the Electrode

range^*:

6 10^-6 to 1 mole bromide
0.5 to 79,000 mg/L bromide

The iRAS bromide selective electrode is an solid state membrane electrode. The membrane is made from a highly compressed AgBr/Ag₂S sensor element embedded into a plastic shaft by means of a special resin.
A silber contact layer and a shielded cable are used for potential discharge.

Ordering Information

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

slope of characteristic:

57 (+-)2 mV/pBr

response time in 10^-8mole,
80 mg/L bromide solution:

< 30 sec

drift within 30 minutes:

0.3 mV

drift within 24 hours:

1 mV

concentration of interfering ion species:

OH^-: 10⁴ times
Cl^-: 10² times
Cu²⁺: 10² times
I^-/CN^-: 2 10² times
S²⁺: traces
Hg²⁺, Ag⁺, Pb²⁺, Tl⁺: affect solution to be analysed (precipitation)

pH range:

2 - 14

temperature range:

0 - 80 °C

resistance:

< 0.1 MOhm

sensor material:

AgBr/Ag₂Cl die-pressed

shaft material:

plastic

dimensions:

immersion depth 120mm
diameter 12 mm