cleaning probes, what to use?

Discussion in 'Test Kits, Controllers, Reactors and Dosers' started by Adee, 27 May 2011.

  1. Adee

    Adee

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    PH probes and the like, what is the best way to clean them without harming them.

    Would leaving them to soak in a vinegar solution damage them?
     
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  3. Kunhardt

    Kunhardt

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    Mine came with a cleaning solution you use to clean it with...did yours not come with the same sort of thing?
     
  4. Adee

    Adee Thread Starter

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    nope, all i recall was that plastic bottle with liquid in it, in which the tip of the probe was kept submerged. I chucked that out when unpacking the probe for use. Hope that was not also the cleaning solution.
     
  5. FransSny

    FransSny

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    Ph probes are quite easy, just rince well with RO wipe gently and soak in the buffer solution (ph 4) for a while
     
  6. Nemos Janitor

    Nemos Janitor

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    From here


    [ame="http://en.wikipedia.org/wiki/PH_meter"]pH meter - Wikipedia, the free encyclopedia@@AMEPARAM@@/wiki/File:pH_Meter.jpg" class="image"><img alt="" src="http://upload.wikimedia.org/wikipedia/commons/thumb/0/0f/PH_Meter.jpg/220px-PH_Meter.jpg"@@AMEPARAM@@COmmons/thumb/0/0f/PH_Meter.jpg/220px-PH_Meter.jpg[/ame]

    Cleaning and troubleshooting of the glass probes
    Occasionally (about once a month), the probe may be cleaned using pH-electrode cleaning solution; generally a 0.1 M solution of hydrochloric acid (HCl) is used,[1] having a pH of about one.
    In case of strong degradation of the glass membrane performance due to membrane poisoning, diluted Hydrofluoric acid (NH4F) can be used. To avoid unexpected problems, the best practice is however to always refer to the electrode manufacturer recommendations or to a classical textbook of analytical chemistry.
     
    Last edited by a moderator: 26 Nov 2015
  7. durleo

    durleo

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    I used vinegar on my SAGA PH probe and it worked fine.
     
  8. Kunhardt

    Kunhardt

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    Guess there is an advantage to paying all that extra money for Tunze equipment then. :biggrin:
     
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