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  2. Electroanalytical methods - Wikipedia

    en.wikipedia.org/wiki/Electroanalytical_methods

    Potentiometry passively measures the potential of a solution between two electrodes, affecting the solution very little in the process. One electrode is called the reference electrode and has a constant potential, while the other one is an indicator electrode whose potential changes with the sample's composition.

  3. Potentiometer (measuring instrument) - Wikipedia

    en.wikipedia.org/wiki/Potentiometer_(measuring...

    A potentiometer being calibrated and then measuring an unknown voltage. R 1 is the resistance of the entire resistance wire. The arrow head represents the moving wiper.. In this circuit, the ends of a uniform resistance wire R 1 are connected to a regulated DC supply V S for use as a voltage divider.

  4. Potentiometer - Wikipedia

    en.wikipedia.org/wiki/Potentiometer

    A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. [1] If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.

  5. Ion-selective electrode - Wikipedia

    en.wikipedia.org/wiki/Ion-selective_electrode

    An ion-selective electrode (ISE), also known as a specific ion electrode (SIE), is a simple membrane-based potentiometric device which measures the activity of ions in solution. [1]

  6. Tips pour in over 5,000 drone sightings. Reason to worry ...

    www.aol.com/tips-pour-over-5-000-131033198.html

    Editor's Note: This page is a summary of news on drone sightings for Tuesday, Dec. 17. For the latest news, view our story for Wednesday, Dec. 18. The FBI has received tips involving over 5,000 ...

  7. Glass electrode - Wikipedia

    en.wikipedia.org/wiki/Glass_electrode

    A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion. The most common application of ion-selective glass electrodes is for the measurement of pH.

  8. Katie Holmes Just Wore a Polarizing '80s Throwback Style ...

    www.aol.com/katie-holmes-just-wore-polarizing...

    Katie Holmes is bringing stirrup pants back, whether you're here for their return or not. The actress, 45, stepped out in New York City ahead of Thanksgiving Day, sporting the polarizing '80s ...

  9. Big 12 fines Arizona State $25,000 for premature field storm ...

    www.aol.com/sports/big-12-fines-arizona-state...

    The Big 12’s fine for Arizona State is a quarter of the fine that the SEC levies on its teams when fans storm the field for the first time. Auburn and Oklahoma were each fined $100,000 for their ...