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ISE Nitrate Electrodes for continuous in-stream monitoring

Home Forums Environmental Sensors ISE Nitrate Electrodes for continuous in-stream monitoring

This topic contains 2 replies, has 3 voices, and was last updated by  Davey Jones 1 week, 3 days ago.

  • Author
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  • #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?

  • #1828

    neilh
    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 –
    https://www.act-us.info/nutrients-challenge/

    And they have a short list
    https://www.act-us.info/nutrients-challenge/Participants.php
    regards

  • #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:

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