Home > Potassium Half-Cell Ion Selective Electrode with Polymer Membrane - IC-HI4014
Hanna Instruments

Potassium Half-Cell Ion Selective Electrode with Polymer Membrane - IC-HI4014

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Product code: IC-HI4014

Backorder Now, once ordered your item will dispatch before the 04th of June 2025, call 1300 737 871 (NZ 0800 737 871 to confirm).

The HI4014 is a liquid membrane, half-cell ion selective electrode (ISE) with epoxy body for the determination of potassium (K+) in solution. It is ideal for a variety of applications in wine, agriculture, and water analysis.

  • Liquid membrane sensor
  • Detection from 0.039 to 39,100 mg/L K+
  • For use with HI5315 reference half-cell

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$1,759.59 AUD + GST
 $1,935.55 AUD Inc. GST
The HI4014 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.
Hannas liquid membrane half-cell ISEs are designed for use with the HI5315 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 HI4014 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 HI4014 potassium liquid membrane ISE can measure from 1M (0.039 mg/L) to 1M (39,100 mg/L).
HI4014 Features
- Replaceable Sensing Modules - Half-cell liquid membrane ISEs are electrodes that detect free ions in a solution. This type of ISE is designed to incorporate easy replacement of the sensing module.
- Durable Epoxy Body - The probe body of the potassium half-cell ISE is composed of durable epoxy resin.
- BNC Connection -The HI4014 has a universal BNC connector for easy connection to any benchtop meter with a female BNC probe input.

Specifications

Description
polymer membrane; half-cell
Measurement Range
potassium (K+) 1.0M to 110-6M, 39,100 to 0.039 mg/L (ppm)
Temperature Range
0 to 40 C
Body Material
epoxy, PVC
Optimum pH Range
pH 1.5 to 12
Body Length/Overall Length
120 mm
Outer Diameter
12 mm
Cable
coaxial; 1 m (3.3)
Connector Type
BNC
Notes
Approximate Slope +56 mV

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