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Saline detector

Discussion in 'Electronic Design' started by [email protected], Feb 12, 2007.

  1. Guest

    Hi,

    Attempting to make a device to measure salt concentration in water.
    There will be other ions disolved at the same time, namely Chlorates
    and Chlorites.
    Can anyone point me in the direction I need to go or any pointers on
    the web. I have goodled to no avail.

    TIA

    Cheers,
    Andy
     
  2. Guest

    Check out flame ionisation analysis and atomic absorbtion analysis -
    the sodium D-line is quite strong, quite specific and easy to detect
    in absorption or emission.
     
  3. Bill,
    the poster was asking for a quantitative device, not
    for a qualitative lab test. If he wants to distinguish
    chloride from chlorite and chlorate, I guess that's
    becoming complicated and expensive.

    Rene
     
  4. Guest

    Flame ionisation detectors are quantitative devices, and have been
    since the 1950's, when my father bought one for the paper mill in
    Burnie, Tasmania to measure the sodium concetration in black liquor.
    Alan Walsh (whom I once met) invented atomic absorbtion spectrometry a
    little later, and Varian-Techtron have been selling systems ever
    since.

    The devices are complicated and fairly expensive, but entriely
    suitable for routine analysis.
     
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