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HI-4114 Potassium Combination ISE Electrode

HI-4114 Potassium Combination ISE Electrode

Hanna HI-4114 Potassium Combination ISE Electrode

HI-4114 Potassium Combination ISE Electrode

1m cable with BNC connector
6 months manufacturers warranty
£879.60 (exc. VAT) £1,055.52 (inc. VAT)

The HI-4114 is a liquid membrane, combination ion selective electrode (ISE) for the determination of potassium (K+) in solution. The PVC membrane comprised with organic ion exchanger produces a potential change due to the potassium ion exchange between the organic polymer membrane and the sample. The internal sensing elements are housed within a durable polyetherimide (PEI) body.

The HI-4114 is ideal for a variety of applications in wine, agriculture, and water analysis.

  • Liquid membrane sensor
  • Skirted cone geometry
  • Detection from 0.039 to 39,100 mg/L K+
  • HI-4114 Potassium Combination ISE Electrode information

    Hanna's extended description

    The HI-4114 is a Potassium Combination ISE ideal for the determination of Potassium ions in wine, waters, soils and biological samples.

    The HI-4114 potassium ion selective electrode is a complete potentiometric cell that contains a silver/silver chloride (Ag/AgCl) reference housed within a PEI plastic body with a sodium chloride electrolyte. The internal elements are isolated from the sample by an organic polymer sensing membrane.

    Hanna’s liquid membrane combination ISEs are designed with a cone style junction. The skirted cone geometry of the sensor forms the liquid junction with the test solution at the tip of the junction cone, producing a highly stable reference potential and consistent flow rates of electrolyte into the solution. A simple press of the top portion of the ISE makes it easy to empty the electrolyte fill solution and replace when necessary.

    For the HI-4114 to measure potassium accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the potassium ionic strength adjuster (ISA) solution. The ISA ensures that the activity coefficient is constant so the concentration of free potassium ions can be measured. Measuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI-4114 potassium liquid membrane ISE can measure from 1µM (0.039 mg/L) to 1M (39,100 mg/L).

    BNC Connection – BNC is one of the most commonly used connector types in pH meters and electrodes. Compatible with any meter or electrode that uses BNC connectors.


    Specifications list


    Parameter Potassium
    Type Polymer Membrane; Combination
    Measurement Range 1M to 1X 10-6M 39100 to .039 ppm
    Optimum pH Range 1.5 to 12.0
    Temperature Range 0 to 40°C
    Approximate Slope +56
    Body O.D. 12 mm
    Insertion Length 120 mm
    Body Material PEI/PVC
    Cable 1m coaxial
    Connector BNC
    Possible Applications Determination of potassium ions in wine, waters, soils and biological samples.

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