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Vernier® Ammonium Ion-Selective Electrode


Measure concentration of ammonium in aqueous samples.

  • Combination-style, non-refillable, gel-filled electrode.
Use the Ammonium ISE to measure levels of ammonium ions introduced from fertilizers. It can also indicate aqueous ammonia levels if sample solutions are acidified to convert NH3 to NH4+.

The Ammonium ISE has a combination-style, non-refillable, gel-filled electrode. Like all other PVC ISE membranes, the membrane on the ISE has a limited life expectancy. However, the replaceable module of ISE allows you to simply discard the used membrane module, and replace it with a new one.

Note: We recommend that you do not purchase ISE replacement modules too far in advance of their expected time of use as degradation occurs while they are stored on the shelf.

Important: Ion-Selective Electrodes require good chemical technique and careful calibration to obtain accurate results; they are not recommended for middle school or elementary students.

Interfering ions: K+
Electrode slope (log voltage vs. concentration): +56 mV/decade
Electrode resistance: 1 to 4 MΩ
Minimum immersion: 1.1 inch

For educational use only.


   
 

ORDER

Item # Description Unit Availability Price Quantity
470120-632 Vernier Ammonium Ion-Selective Electrode
Each Retrieving

SPECIFICATIONS

Accuracy ±10% of full scale (calibrated 1 to 100 mgL)
Dimensions Electrode length: 155 mm; Body diameter: 12 mm;
Cap diameter: 16 mm;
Cable length: 100 cm
Range 1 to 18,000 mg/L or ppm, pH range: 4 to 7.5, Temperature range: 0 to 50°C (no temperature compensation)

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