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ELIT ISE/pH Ion Analyser system.

The pictures below show all the equipment needed for an Ion Analyser measurement:
  • One Ion-Selective electrode and one Reference electrode are inserted into a dual electrode head.
  • The head, one temperature sensor and one pH electrode are connected to a 2-channel electrode-computer interface.
  • The interface is connected to a serial or USB port of a computer running the 2-channel measurement software.
  • The computer screen shows the calibration graph for a potentiometric ammonium measurement, with sample results plotted on it.




Simple laboratory set-up for Ion Selective Electrode
calibration and measurement
(Screen shows Calibration graph for Nitrate hence negative slope).


ELIT Ion Analyser system includes:
 Ion Selective Electrode, Reference Electrode, Electrode Head, pH electrode,
Temperature Sensor, Electrode-Computer Interface,
Ion Analyser Software, Comprehensive Instructions.

Apparatus not supplied by Nico2000:
Computer.
10ml, 5ml, 2ml pipettes and 100ml volumetric flask for dilution of 1000ppm standard.
150ml polypropylene beakers: up to 6 for diluted standards and 1 to catch washings.
Squeezy wash-bottle. Articulated electrode stand. Laboratory tissues.


Ion-Selective Measurement Software.

Results are recorded in a data table (together with date, time and calibration details) and plotted on the calibration graph (as shown below). Both of these can be printed and the table can be exported to other packages. Also displayed are the necessary values for checking the whole measurement procedure i.e.:

  • the overall slope of the calibration and the slope between adjacent points;
  • the temperature of measured solutions and calibrating solutions;
  • the pH of the solution (if a pH electrode is installed).

    Note that the x-axis units are always the Logarithm of the Molar concentration - no matter which units have been entered during calibration.

    Calibration and sample measurements using an Ammonium ISE
    showing full calibration including non-linear range.



    Click here for more details for Single-Ion Analyser.


    Set-up screen for 4&8-channel version



    Click here for more details for Multi-Channel Analysers.

    Last Update: CCR 20 October 2014