Hanna Instruments

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HI-4014 Potassium Half-Cell ISE

HI-4014 Potassium Half-Cell ISE

Hanna HI-4014 Potassium Half-Cell ISE

HI-4014 Potassium Half-Cell ISE

1m cable with BNC connector
6 months manufacturers warranty
£772.20 (exc. VAT) £926.64 (inc. VAT)

The HI-4014 is a liquid membrane, half-cell 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 epoxy body.


  • Liquid membrane sensor
  • Detection from 0.039 to 39,100 mg/L K+
  • For use with HI5315 reference half-cell
  • HI-4014 Potassium Half-Cell ISE information

    Hanna's extended description

    The HI-4014 potassium ion selective electrode is a potentiometric half-cell sensor housed within an epoxy body. The internal elements are isolated from the sample by an organic polymer sensing membrane. This liquid membrane sensor requires a separate reference electrode to complete the measurement system.

    Hanna’s liquid membrane half-cell ISEs are designed for use with the HI-5315 reference half-cell. The reference half-cell features a cone style junction. The skirted cone geometry of the reference 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-4014 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-4014 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

    Specifications list

    Specifications

    Parameter Potassium
    Type Polymer Membrane; Half-cell
    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 PVC
    Cable 1m coaxial
    Connector BNC
    Possible Applications Determination of potassium ions in wine, waters, soils and biological samples.

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