Ion Selective Electrodes (ISE)
by Oakton

The pH400 series of electrodes are an ideal choice for a variety of applications. There is a large selection available to make matching your needs easier.

  • Epoxy Body
  • Solution kits, replacement calibration standard and replacement ISAs available
  • Works with pH/ORP meters with 0.1 mV resolution
Download pH400 Product Sheet (.pdf; 96KB)

SPECIFICATIONS

Applications
Electrode Range/Type
Electrode Cat No.
Solution Kit
Replacement Calibration Std
Replacement ISA
Ammonia (NH3)
High Purity power station water, fish tanks, sea water, waste water, plating baths, air/stack gases, and biological samples
17,000 to 0.01 ppm
Gas Sensing
Single Junction
N/A
Ammonium (NH4+)
Boiler feed water, natural water and fertilizers. User must supply cal standard.
18,000 to 0.01 ppm
Polymer Membrane
Double Junction
N/A
Bromide (Br -)
Water, wine, soil, plant tissue, blood electrolytes and clinical analysis
79,000 to 0.4 ppm
Solid State
Double Junction
Cadmium (Cd +2)
Plating Baths.
User must supply Calibration Standard
11,200 to 0.01 ppm
Solid State
Double Junction
N/A
Calcium (Ca +2)
Water softeners, boiler feed water, drinking/mineral water, blood, clinical analysis and food.
40,000 to 4.4 ppm
Polymer Membrane
Double Junction
Carbon Dioxide/Carbonate
Soft drinks, carbonated beverages, sine, beer, fermentation processes and bacteria cultures.
440 to 4.4 ppm
Gas Sensing
Single Junction
Chloride (Cl -)
River/tap water, plant tissue, soils, boiler feed water, blood electrolytes, clinical analysis, sweat, urine, cement, plating baths and food samples.
35,000 to 1.8 ppm
Solid State
Double Junction
Copper (Cu +2)
Plating baths and water
6350 to 0.00064 ppm
Solid State
Double Junction
Cyanide (CN -)
Plating baths, waste water and plant tissue. User must supply calibration standard.
260 to 0.13 ppm
Solid State
Double Junction
N/A
N/A
Fluoride (F -)
Drinking/Natural water, waste water, air/stack gas, acids, sea water minerals, soils, food, biological fluids, toothpaste, coal, soft drinks, bone.
Saturated to 0.02 ppm
Solid State
Double Junction
Fluoroborate (BF4 -)
Plating baths (boron analysis)

10,8000 to 0.1 ppm
Polymer Membrane
Double Junction
Iodide (I -)
Milk, feeds, plants and pharmaceuticals
127,000 to 0.006 ppm
Solid State
Double Junction
Lead (Pb +2)
Plating Baths and organic compounds.
20,700 to 0.2 ppm
Solid State
Double Junction
Nitrate (NO3 -)
Surface/drinking water, sewage effluent, soil extracts, fertilizers, plant tissue, meat, potatoes, spinach, beets and baby food.
62,000 to 0.5 ppm
Polymer Membrane
Double Junction
Nitrogen Oxide (NOx)
Air and Stack gases
220 to 0.2 ppm
Gas Sensing
Single Junction
Perclorate (ClO4)
Explosives and solid propellants
98,000 to 0.7 ppm
Polymer Membrane
Double Junction
Potassium (K +)
Waste water, river/tap water, blood, clinical analysis, saliva, serum, fertilizers, soils and wines.
39,000 to 0.04 ppm
Polymer Membrane
Double Junction
Silver/Sulfide (Ag +/S -2)
Sewage effluent, soils, sediments, plating baths and photographic fixing solutions. Supply sulfide soln.
107,900 to 0.01 ppm
Solid State
Double Junction
Sodium (Na +)
Steam condensates in power plants, blood, clinical analysis, serum, wine, glass, seawater, swimming pools, fish farms and aquariums.
23,000 to 0.2 ppm
Glass Bulb
Double Junction
Surfactant (X+, X-)
Detergents, dishwashing liquids, cleaning supplies and food products. For titration only.
12,000 to 1.0 ppm
Polymer Membrane
Double Junction
Water Hardness (Ca +2 Mg +2)
Water softeners, boiler feed water, clinical analysis, drinking/mineral water, blood and food.
40,000 to 0.4 ppm
Polymer Membrane
Double Junction