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Cadmium Combination Ion Selective Electrode (ISE) HI4103
The HI4103 is a solid state, combination ion selective electrode (ISE) for the determination of cadmium (Cd2+) in solution. The mixed cadmium sulfide/silver sulfide sensing pellet produces a potential change due to the cadmium ion exchange between the inorganic pellet membrane and the sample. The internal sensing elements are housed within a durable polyetherimide (PEI) body. The HI4103 is ideal for a variety of applications in electroplating, battery construction, and in the laboratory.
- Solid state sensor
- Skirted cone geometry
- Detection from 0.01 to 11,200 mg/L Cd2+
|Note||Heated transport required during winter months.|
|Type||solid state; combination|
|Optimum pH Range||2 to 12|
|Temperature Range||0 to 80°C|
|Cable||1 m coaxial|
|Common Applications||electroplating, battery construction, laboratory and as an indicator for titrations|
The HI4103 cadmium 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 potassium nitrate electrolyte. The internal elements are isolated from the sample by a compressed cadmium sulfide/silver sulfide sensing membrane.
Hanna’s solid-state 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 HI4103 to measure cadmium accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the HI4000-00 ionic strength adjuster (ISA) solution. The ISA ensures that the activity coefficient is constant so the concentration of free cadmium ions can be measured. Measuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI4103 cadmium solid-state ISE can measure from 0.1µM (0.01 mg/L) to 0.1M (11,200 mg/L).