Hanna Instruments-4105 Carbon Dioxide Combination ISE Electrode

Hanna InstrumentsSKU: HI-4105
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Description

The Hanna Instruments-4105 is Carbon Dioxide, gas sensing combination electrode ideal for the detection of carbonates as CO2 in water, soft drinks and wine samples.


The Hanna Instruments-4105 is a gas sensing, combination ion selective electrode (ISE) for the determination of carbon dioxide (CO2) in solution. Its PTFE membrane allows for carbon dioxide gas diffusion into a thin layer of internal electrolyte. The internal sensing elements are within a durable Delrin® body.


The Hanna Instruments-4105 Carbon Dioxide Ion Selective Electrode is a complete potentiometric cell that contains both a silver/silver chloride (Ag/AgCl) reference and a pH measurement element. These elements are housed within a plastic body with a Chloride ion-containing electrolyte, isolated from the sample by a gas permeable membrane made of polytetrafluoroethylene (PTFE).


For the Hanna Instruments-4105 to measure carbon dioxide accurately, it is important that the pH of the calibration standards and sample be lowered with the carbon dioxide ionic strength adjuster (ISA) solution.


The carbon dioxide ISA ensures the pH of solutions is kept between pH 4.2 and 5.2. In this pH range, the carbonate and bicarbonate in solution are converted to carbon dioxide for an accurate measurement. The Hanna Instruments-4105 carbon dioxide gas sensing ISE can measure from 400µM (17.6 mg/L) to 0.02M (880 mg/L).


Key features:



  • Replaceable PTFE Membranes - Gas sensing ISEs are combination electrodes that detect dissolved gases in a solution. The sensing element is separated from the sample solution by a gas permeable, PTFE membrane that is easy to replace.

  • Durable Delrin® Body - The probe body is composed of durable Delrin plastic.

  • BNC Connection - The Hanna Instruments-4105 has a universal BNC connector for easy connection to any benchtop meter with a female BNC probe input.

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