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Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

Iodide Half-Cell Ion-Selective Electrode (ISE) - HI4011

$1,482.79

The HI4011 is a solid state, half-cell ion selective electrode (ISE) for the determination of iodide (I) in solution. The silver iodide sensing pellet produces a potential change due to the iodide ion exchange between the inorganic pellet membrane and the sample. The internal sensing elements are housed within a durable epoxy body.

The HI4011 is ideal for a variety of applications in food production and environmental monitoring.

  • Solid state sensor
  • Detection from 0.01 to 127, 000 mg/L I
  • For use with HI5315 reference half-cell

The HI4011 iodide selective electrode is a potentiometric half-cell sensor housed within an epoxy body. The internal elements are isolated from the sample by a compressed silver iodide sensing membrane. This solid state sensor requires a separate reference electrode to complete the measurement system.

Hanna’s solid state 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 HI4011 to measure iodide accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the halide ionic strength adjuster (ISA) solution. The halide ISA ensures that the activity coefficient is constant so the concentration of free iodide ions can be measured. Measuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI4011 iodide solid state ISE can measure from 0.1µM (0.01 mg/L) to1M (127, 000 mg/L).

Conversion Table for I

Multiply

moles/L (M) to ppm (mg/L)

1.269 x 105

ppm (mg/L) to M (moles/L)

7.88 x 10-6

Features at-a-glance

Fixed Sensing Modules – Solid state half-cell ISEs are electrodes that detect free ions in a solution. The highly insoluble, compressed sensing pellet is attached to the HI4011 iodide half-cell by a fixed sensing module for ease of use.

Durable Epoxy Body – The probe body of the iodide half-cell is composed of durable epoxy resin.

BNC Connection – The HI4011 has a universal BNC connector for easy connection to any benchtop meter with a female BNC probe input.

Theory of Operation

A solid state sensor electrode develops a voltage due to the ion exchange that occurs between the solution and the inorganic membrane. An equilibrium occurs due to the highly limited solubility of the membrane material in the sample. When the ionic strength of the solution is fixed by the addition of ISA, the voltage is proportional to the concentration of free ions in solution.

SKU HI4011
Name Iodide Half-Cell Ion-Selective Electrode (ISE) – HI4011
Description solid state; half-cell
Measurement Range Iodide (I) 1M to 1 10-7M, 127,000 to 0.01 mg/L (ppm)
Temperature Range 0 to 80 °C
Body Material epoxy
Optimum pH Range pH 2 to 13
Body Length/Overall Length 120 mm
Outer Diameter 12 mm
Cable coaxial; 1 m (3.3’)
Connector Type BNC
Notes Approximate Slope -56 mV

Iodide Half-Cell Ion-Selective Electrode (ISE) – HI4011

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.


Free standard delivery:

We offer free delivery within Australia, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient’s location.


Same-day express delivery:

Place your order before 1 PM Monday to Friday for the same-day express shipping. Delivery times may vary depending on the courier service and the recipient’s location.

Please note that we do not offer shipping to PO Box addresses.

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Please note that we do not offer shipping to PO Box addresses.