Potentiometric pH measurement

The pH-value of a liquid can be calculated using the potentiometric measurement principle. This video shows what it is about and how this measuring principle works.

[kartonnendoos]

1 hour lecture explained in 5 min, GG youtube

[StoplossActivated_]

I am a RO plant operator and I found this video very helpful, thanks!

[MuhammadAslam-otwz]

Sir thank you very much for this video.We are using ph analyzer in a power plant in Saudi arabia.All of made of Endress very grate invention.I am proud on you.

[vishavjeetsingh]

so nice of you to make such videos
I really appreciate

[Mansigupta]

This video has been of great help to me. Thank you.

[EmprendeRapeando]

This was exactly what I was looking for! Thanks!!

[nadeemiqbal]

Nice elaboration of pH electrode and its working.Thanks from Pakistan.

[jeannettecruz]

This is a fantastic video, thank you.

[zanrexi]

Great video, but didn't quite understand the animation of the junction. If the junction should "protect the reference system from the medium measures" then I guessed that it would chemically isolate the reference system but the animation was to the country. Until I found this explanation, which you might also find helpful: 
"The reference junction, also known as a diaphragm, creates electrical contact between the reference system and the solution. Much like the reference electrolyte, the reference junction must possess certain qualities.

Diffusion voltages at the junction are a common measurement error, so the junction plays a major role in the precision of measurements. To keep these disruptive potentials small, the junction must guarantee a relatively large and consistent outflow of reference electrolyte. However, the junction must only be slightly permeable to prevent electrolyte from escaping too quickly, which is especially important with electrodes utilizing liquid electrolyte. Different junction types have different outflow rates of electrolyte.

In addition to the permeability of the junction, its electrical resistance should be as low as possible and it must be chemically inert."

[chuihoi]

Thx god. Finally find such animation. No confusion anymore!!

[johntough]

Great video. Clear and straight to the point, with a good array of visuals. Thank you!

[marklifc]

Would you be able to briefly explain the stirring effect and why it affects the pH measurement? And also if there is a way to measure the pH or ion concentration (using ion selective electrodes) of flowing liquids?

[bharathbn]

Its osum ....I understood everything, thank you for providing such videos

[sesihlesese]

Such a good video, can you please do a video of different pH ranged and the different material you use on the porous plug.I've seen one like crystals pH 0...12 W11B7B and pH 1...12.S45B46

[feiyangflash]

Awesome video on the principles of pH sensors!

[Syedsaad-pb]

What a wonderful explanation with clarity! keep it up.

Following

[samikshyagiri]

U made this so easier for me to understand ...thank you

[luxemshah]

superb explanation!thanks!want to see more

[pamelasikhitimi]

Simple but detailed explanation of the principle.

[aSAN]

@spiritu sancti - if the acid is dissolved in water, then the pH/acidity of that solution can indeed be measured by a pH meter