ISE Electrodes

Ion-selective electrodes are used in analytical chemistry and biochemical research where accurate measurements of ionic concentration in aqueous solutions are required, taking the guesswork out of water quality testing measurements. Certain models are specially calibrated for detecting and measuring various chemical concentrations in wastewater, drinking water, and general water quality applications. Various different ion-selective membranes are used in ISEs, with most models featuring easy replacement filling solutions and some boasting membrane technology that doesn’t need replacing.

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Combined ion selective electrodes, 500 series

Supplier: WTW

These 500 series half cells require a separate reference electrode type R 503 (an exception for this is the gas-sensitive NH 500/2 with integrated reference electrode).

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Accessories for combined ion selective electrodes

Supplier: WTW

Electrode, ISE

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Combined ion selective electrodes, 800 series

Supplier: WTW

These easy-to-use, robust, high quality ion-selective electrodes are ideal for field applications.

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Reference electrode for use with ion selective electrodes, sensION+ 5044

Supplier: Hach

The 5044 with lithium acetate electrolyte is recommended for use with all sensION+ half-cell ion selective electrodes (ISE) in drinking water, wastewater and general water quality applications.

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Ion selective electrodes, chloride, Orion™

Supplier: Thermo Orion

These chloride electrodes are designed for measuring free chloride in the range of 1×10⁻⁵ to 1 M.

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Ion selective electrode, half-cell, thiocyanate, Orion™

Supplier: Thermo Orion

This half-cell electrode is ideal for performing quick, accurate and economical measurements of thiocyanate ions in aqueous solutions.

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Ion selective electrodes, bromide, Orion™

Supplier: Thermo Orion

These electrodes are designed for measuring bromide ions in aqueous solutions quickly, simply and economically.

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Ion selective electrodes, Fluoride, IntelliCAL™

Supplier: Hach

IntelliCAL™ ISEF121 is a digital combination fluoride ion selective electrode (ISE) with a non-refillable, single junction reference and built-in temperature sensor. The solid-state sensor design eliminates membrane replacement and allows for dry storage of the ISE.

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Ion selective electrode, Ammonia, solid-state, IntelliCAL™

Supplier: Hach

IntelliCAL™ ISENH4181 is a digital combination ammonium ion selective electrode (ISE) with a non refillable double junction reference and built-in temperature sensor. The solid-state sensor design eliminates membrane replacement and allows for dry storage of the ISE.

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Ion selective electrodes, chlorine, Orion™

Supplier: Thermo Orion

These electrodes are designed for measuring total residual chlorine quickly and accurately.

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Ion selective electrode, half-cell, fluoride, sensION+ 9655

Supplier: Hach

sensION+ 9655 is a half-cell (reference not integrated) fluoride ion selective electrode with an epoxy body and non-replaceable crystalline membrane selective to fluoride ions in solution.

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Ion selective electrode, half-cell, fluoroborate, Orion™

Supplier: Thermo Orion

This fluoroborate half-cell can be easily and economically rejuvenated.

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Ion selective electrode, ammonia, Orion™

Supplier: Thermo Orion

This standard gas-sensing ISE electrode is designed for quick, reliable and accurate measurements of dissolved ammonia in aqueous solutions.

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Combined ion-selective electrodes, perfectION™

Supplier: Mettler - Toledo

Combined ion-selective electrodes consisting of a measuring electrode complete with an integrated reference.

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Ion selective electrode, ammonia (NH₃), gas-sensing, IntelliCAL™

Supplier: Hach

This digital, combination gas-sensing ammonia ion selective electrode (ISE) with replaceable membrane module, refillable outer body, double junction reference and built-in temperature sensor is intended for laboratory use.