The EDT directION Sodium Half Cell ion selective electrode has a Glass membrane. It requires the use of a double junction reference electrode which has its outer chamber filled with the Ionic strength adjustment buffer (ISAB) detailed below.

The electrode is designed for the detection and analysis of Sodium ions in aqueous solutions and is suitable for use in the laboratory.

Please note that both the ISE and the reference electrode need to be placed in the standards or samples simultaneously and should not be more than around 10cm apart. The side filling cap of the double junction reference electrode should be open during measurements and closed during storage.

The EDT Half Cell ISE can be used immediately but pre-soaking for 5 minutes in a 100ppm Sodium solution along with the double junction reference electrode is recommended.

The ionic strength of the standards and solutions should be kept constant between. This is achieved by the simple addition of an Ionic strength adjustment buffer (ISAB). Calcium Hydroxide is ideal as the pH has to be kept above 9 for successful results. No temperature correction is possible it is therefore important that all standards and samples should be measured at the same temperature to ensure that temperature effects are eliminated.

Begin calibration from the lowest concentration standard to avoid cross contamination. Calibration should cover the anticipated range of the samples. Rinse tips of both electrodes with de-ionised water between measurements and dab off excess water.

To see a simple calibration click here. EDT directION produce a full range of Stock Standards and Ionic Strength Adjustment Buffers (ISABs) to save valuable time and give confidence in the quality of your results.

For Quick Ion analysis for under £500 use our ION Concentration Calculator.

Thumb File information
1301G Manual.pdf 1.01MB 294
Meters
Reference Type Double Junction Reference required
Accessories
Cable length 1000mm
Cap Diameter 16mm
Concentration Range 0.002- 69,000 ppm
Connector BNC
Diameter 12mm
Endpoint time Typically 10-60 seconds
Interferences Lithium, Potassium, Barium, pH
length 155mm
pH range 9-12 pH
Potential Drift 2mV per Day
Resistance at 25 Deg C < 2.5 MOhm
Temperature range 5-50 Degrees C

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Sodium Glass Half Cell ISE

  • £215.00


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Tags: Electrode, ISE, Half Cell, Glass, Sodium

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