
Electrodes | ISE Electrodes Application Guide
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Ion Selective Electrodes (ISE)
Eutech offers a large selection of Ion Selective Electrodes (ISE) to suit a wide variety of applications. Each electrode has a typical
response time of 20 to 30 seconds which varies with solution concentration. Gas sensing electrodes also include replacement
membranes. Eutech offers three electrode types: Membrane/Solid State, Gas Sensing, or Glass Bulb.
Choose from single junction or double junction electrodes.
Single junction electrodes are ideal for clean water
applications. Use double junction electrodes for testing dirty
water and solutions with heavy metals or organics. All
electrodes are refillable and include 15 ml of electrolyte, filling
pipette and instructions. Solid state electrodes also include
polishing strips.
ISE General Application Guide
-
Ammonia NH - High Purity Power Station
3
Water, Fish Tanks, Sea Water, Waste Water,
Plating Baths, Air/Stack Gases and Biological
Samples Type: Gas Sensing
ISE Applications Concentration
Range
Temperature /
pH Range
Interferences
Electrode
Standard
0.1M
Standard
100 ppm
Standard
1000 ppm
Ion Strength
Adjuster
Ammonium NH - Boiler Feed Water, Natural
4
Water and Fertilizers
Type: Polymer Membrane
-
Bromide Br - Water, Wine, Soil, Plant Tissue,
Blood and Clinical Analysis
Type: Solid State
+2
Cadmium Cd - Plating Baths
Type: Solid State
+2
Calcium Ca - Water Softening Systems,
Boiler Feed Water, Drinking/Mineral Water,
Clinical Analysis and Food Applications
Type: Polymer Membrane
-2
Carbon Dioxide CO and Carbonate CO
2 3
- Soft Drinks/Carbonated Beverages, Wine,
Beer, Fermentation Processes, Bacterial
Cultures Type: Gas Sensing
-
Chloride Cl - River/Tap Water, Plant Tissue,
Soils, Boiler Feed Water, Clinical Analysis,
Sweat, Urine, Cement, Plating Baths and
Food Samples Type: Solid State
-
Cyanide CN - Plating Baths, Waste Water and
Plant TissueType: Solid State
+2
Copper Cu - Plating Baths and Water
Type: Solid State
-
Fluoride F - Drinking/Natural Water, Waste
Water, Air/Stack Gases, Acids, Sea Water
Minerals, Soils, Food, Biological Fluids,
Toothpaste/Mouth Wash, Coal, Carbonated
Beverages and Bone Type: Solid State
-
Iodide I - Milk, Feeds, Plants and
Pharmaceuticals
Type: Solid State
-
Nitrate NO - Surface/Drinking Water,
3
SewageEffluent, Soil Extracts, Fertilizers,
Plant Tissue,Meat, Potatoes, Spinach,
Beets, Baby FoodType: Polymer Membrane
+
Potassium K - Waste Water, River/Tap Water,
Clinical Analysis, Saliva, Serum, Fertilizers, Soils
and Wines Type: Polymer Membrane
+ -2
Silver/Sulfide Ag /S - Sewage Effluent, Soils,
Sediments, Plating Baths and Photographic
Fixing Solution Type: Solid State
(17,000 to
0.001 ppm)
-6
1.0 to 5 x 10 M
(18,000 to
0.01 ppm)
-6
1.0 to 5 x 10 M
(79,000 to
0.4 ppm)
-6
1.0 to 5 x 10 M
(11,200 to
0.01 ppm)
-7
0.1 to 1 x 10 M
(40,000 to
0.2 ppm)
-6
1.0 to 5 x 10 M
(440 to 0.4 ppm)
-2
1 x 10 to
-4
1 x 10 M
(35,500 to
1.8 ppm)
-5
1.0 to 5 x 10 M
(6350 to
-4
6.4 x 10 ppm)
-8
0.1 to 1 x 10 M
(260 to0.13 ppm)
-6 -2
5 x 10 to10 M
0.02 ppm to
Saturated
-6
(10 to
Saturated)
(127,000 to
-3
6 x 10 ppm)
-8
5 x 10 to 1.0 M
(20,7000 to
0.2 ppm)
-6 -1
10 to 10 M
(62,000 to
0.5 ppm)
-6
7 x 10 to 1.0 M
(39,000 to
0.04 ppm)
-6
10 to 1.0 M
(107,900 to
-7
0.01 ppm) 10 to
+ -2
1.0 M (Ag , S )
(23,000 to
0.2 ppm)
-6
10 M to
Saturated
+2
Lead Pb - Plating Baths andOrganic
Compounds
Type: Solid State
+
Sodium Na - Steam Condensates in Power
Plants, Clinical Analysis, Serum, Foods, Wine,
Glass, Sea Water, Swimming Pools, Fish Farms
and Aquariums Type: Glass Bulb
0 to 50 °C /
Above pH 11
0 to 50 °C /
pH 4 to pH 10
0 to 50 °C /
pH 2 to pH 14
0 to 80 °C /
pH 2 to pH 12
0 to 50 °C /
pH 3 to pH 10
0 to 50 °C /
pH 4.8 to pH 5.2
0 to 80 °C /
pH 2 to pH 12
0 to 80 °C /
pH 2 to pH 12
0 to 80 °C /
pH 11 to pH 13
0 to 80 °C /
pH 5 to pH 8
0 to 80 °C /
pH 0 to pH 14
0 to 80 °C /
pH 3 to pH 8
0 to 50 °C /
pH 2.5 to pH 11
0 to 50 °C /
pH 2 to pH 12
0 to 80 °C /
pH 2 to pH 12
0 to 80 °C /
pH 5 to pH 12
Volatile Amines
+
K
-2 - -
S , I, CN,
-
High Cl and
NH Levels
3
+ +2 +2
Ag , Hg , Cu ,
+2
High PB and
+2
Fe Levels
+2 +2 +2
Pb , Hg , Cu ,
+2 +2 +2
Ni , Fe , Mg ,
+2 +2 +2
Zn , Ba , K ,
+ +
K , Na
Volatile Weak
Acids
-2 - - -
S , I, CN, Br,
- -2
OH, NH , S O
3 2 3
+ +2
Ag , Hg , High
- - +2
Cl, Br, Fe and
+2
Cd Levels
-
OH
-2 - - -
S , CN, Br, Cl,
-2
NH , S2O
3 3
+2 +2 +2
Ag , Hg , Cu ,
+2
High Cd and
+2
Fe Levels
- - - -
CIO , I, CN, BF
4 4
+ + + +
Cs , NH , Tl ,H ,
4
+ + +
Ag , Li , Na ,
+
Tris 1
+2
Hg
+ + + +
H , K , Li , Ag ,
+ +
NH , Rb ,
4
+ +
Cs , Tl
-2 - - -
S , I, Br, Cl
ECNH30101B
ECNH40301B
ECBRO0301B
ECCD0301B
ECCAL0201B
ECCO20101B
ECCLO0301B
ECCU0301B
ECFO0301B
ECIO0301B
ECPB0301B
ECNO0301B
ECK0301B
ECAGS0301B
ECNA0201B
ECCN0301B
ECSCSAA1BT
ECSCSAM1BT
ECSCSBR1BT
ECSCSCD1BT
ECSCSCA1BT
ECSCSCO1BT
ECSCSCL1BT
ECSCSCU1BT
ECSCSFL1BT
ECSCSIO1BT
ECSCSPB1BT
ECSCSNT1BT
ECSCSKO1BT
ECSCSSS1BT
ECSCSLNA1BT
ECSCSAA2BT
ECSCSAM2BT
ECSCSBR2BT
ECSCSCD2BT
ECSCSCA2BT
ECSCSCO2BT
ECSCSCL2BT
ECSCSCU2BT
-
ECSCSFL2BT
ECSCSIO2BT
ECSCSPB2BT
ECSCSNT2BT
ECSCSKO2BT
ECSCSSS2BT
ECSCSLNA2BT
ECSCSAA3BT
ECSCSAM3BT
-
-
ECSCSCA3BT
ECSCSCO3BT
ECSCSCL3BT
-
-
ECSCSFL3BT
-
-
ECSCSNT3BT
-
ECSCSLNA3BT
ECISAAA1BT
ECISAAM1BT
ECISABR1BT
ECISACD1BT
ECISACA1BT
ECISACO1BT
ECISACL1BT
ECISACU1BT
-
ECISAFL1BT
ECISAIO1BT
ECISAPB1BT
ECISANT1BT
ECISAKO1BT
ECISASS1BT
ECISALNA1BT
-
-
ECTestr® 11; ECTestr® 11+ ; TDSTestr® 11; TDSTestr® 11+
Conductivity/ºC/ºF ; Conductivity/ºC/ºF ; TDS/ºC/ºF ; TDS/ºC/ºF
High Accuracy
• TDSTestr 11+ series measures up to 20.00
ppt
• ECTestr 11+ series measures up to 20.00
mS/cm
• Selectable TDS factor (0.40 to 1.00) for
TDSTestr 11 series
• Selectable single/multi-point calibration with
auto/manual options
• ±1 % full scale accuracy
Long Lasting
• Unique cup-style* sensor with Valox®
casing. Industrial grade SS316 stainless steel
sensor element protects against harsh
sample and ensures superior chemical
durability
• Reduced operating cost – use tester body
again and again with user-replaceable sensor
• Rugged and waterproof to IP67 standards.
So light, it floats!
* For ECTestr 11+ & TDSTestr 11+
User-Friendly
• Auto-ranging capabilities options with
convenient direct readout and optional range
selection
• Temperature display with ºC and ºF options –
no need for separate thermometer!
• Non-volatile memory retains tester settings,
even when batteries run out
Page | 13
Simultaneous
temperature display
VALOX® sensor
casing for superior
chemical durability
Dip-type sensor for
the non-’+’ models
Sensor element
made from industrial
grade SS316 stainless
steel type to protect
against harsh samples
Conductivity/TDS | Pocket Testers
Single line display
EC Testr High,Low;
TDS Testr High,Low
Dip-type sensor
Unique cup-style design
of ‘+’ series allows
you to hold small
volumes of sample
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