TRUEscience
  • Home
  • Buy
    • Products >
      • pH measurement
      • ISE Measurement
      • Redox Measurement
      • Dissolved Oxygen Measurement
      • Accessories
    • Global Distributors
  • Try the App
  • Info
    • Blog
    • Videos
    • Brochures
    • Manuals
    • Guides
    • MSDS
    • Tablet Compatibility
    • FAQ's
  • About Us
    • Mission Statement
    • News
    • Technology
    • User Stories
  • Contact Us
    • Feedback & Suggestions
  • Distributors Portal
    • Images
    • Logos
    • Press Releases
  • Home
  • Buy
    • Products >
      • pH measurement
      • ISE Measurement
      • Redox Measurement
      • Dissolved Oxygen Measurement
      • Accessories
    • Global Distributors
  • Try the App
  • Info
    • Blog
    • Videos
    • Brochures
    • Manuals
    • Guides
    • MSDS
    • Tablet Compatibility
    • FAQ's
  • About Us
    • Mission Statement
    • News
    • Technology
    • User Stories
  • Contact Us
    • Feedback & Suggestions
  • Distributors Portal
    • Images
    • Logos
    • Press Releases

How does an Ammonia Ion Selective Electrode (ISE) work?

24/5/2019

0 Comments

 
The TRUEscience Ammonia ion selective electrode is made up of three parts: a flat surface PH electrode, a Teflon membrane located in the end cap and a refillable ammonium chloride solution.
Picture

​The Teflon membrane is partially permeable and allows gas to pass through. This means that ammonia gas can pass through the membrane and react with the solution, being converted to ammonium by the basic solution. This reaction between the high pH solution and the ammonia gas reduces the pH of the solution surrounding the pH probe, creating a readable voltage directly proportional to the ammonia concentration.

Picture

Why use this method to measure ammonia?

While there are some solid state electrodes to detect ammonium, in order to detect ammonia as a gas an electrode containing a solution is used.  This style of electrode also has a greater precision and can detect down to 1 ppb, when using a solid state electrode the detection limit is often closer to <2 ppm.

For more information about testing ammonia please get in touch with our technical team on info@truescience.co.uk or phone us on +44 1954 233 144. 
0 Comments

Your comment will be posted after it is approved.


Leave a Reply.

    Author

    Posts by the TRUEscience team! We want to explore questions around pH testing in the real world, as well as impart our favourite tips and tricks to make your testing SMART!

    Archives

    September 2019
    August 2019
    May 2019
    February 2019
    October 2018
    August 2018
    July 2018
    August 2017
    May 2017
    January 2017
    November 2016
    September 2016
    August 2016
    July 2016
    June 2016
    April 2016

    Categories

    All
    Electrodes
    PH

    RSS Feed


Contact us:
​E:  info@truescience.co.uk
​T:  01954 233 144