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ISE Nitrate Electrodes for continuous in-stream monitoring

Tagged: ISE electrodes, Nitrate monitoring, nitrate testing, soil

This topic has 2 replies, 3 voices, and was last updated 2018-12-03 at 6:43 AM by Davey Jones.

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- 2016-11-29 at 1:21 PM #1811
  Marion
  Participant
  Does anyone have any experience with the ISE nitrate electrodes for continuous monitoring directly in a stream? These appear to be the only “affordable” option for nitrate monitoring. The manufacturers’ literature seem to indicate that these may have a short lifetime before replacing the modules. However, there was a paper for work done in Portugal a few years ago in which an electrode gave results comparable to the lab for the duration of the 40 day test. With periodic (frequent?) calibration via comparison to lab results for testing of stream samples, could these give useful data?
- 2016-11-30 at 5:33 PM #1828
  neilh20
  Participant
  Hi Marion,
  I don’t have any experience, and it would be great if you share what you find here.
  
  This is a topic the EPA is sponsoring – with a target of unattended for 3 months –
  http://www.act-us.info/nutrients-challenge/
  
  And they have a short list
  http://www.act-us.info/nutrients-challenge/Participants.php
  regards
- 2018-12-03 at 6:43 AM #12671
  Davey Jones
  Participant
  Hi all
  We have been measuring nitrate in agricultural soils with ISEs. I attach a talk I gave recently which demonstrates the main goals. This is a work in progress!
  Attachments:
  Aberdeen-2018.pdf
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