Excellent.... I can't imagine that an animation thumb down such a great video! Thank you for posting this. Very helped

It has been really helpful...Thank you so much sir🙏 (from India)

very precise and concise video!! excellent

Really usefull sir 🙏

Informative dear Sir

Thanks brother ❤️

Thank you so much!!!!

Hello like your videos

amazing

Thank you sir ❣️

Thanks a lot!!

Amazing vedio

whats the chemical name of the buffers that you had used?

Noice!

Thank u

Where can I buy just the electrode

Do we need to do calibration every day?

@scienceetc7958

Жыл бұрын

Yes, it will certainly need to be done every time you switch the meter on and I would also do it every 10 or so samples

I can understand to calibrate for a pH of 7 but cannot understand why use a buffer solution of pH 4! I'm sure one only needs to calibrate the meter at pH 7 and it's done!

@scienceetc7958

2 жыл бұрын

So, some pH meters allow you to do a single point calibration but it is not as accurate. To get the best accuracy, you should do a 2, or even 3, point calibration as it essentially gives the meter more reference points to work from. In wine, we are measuring something acidic, so we use pH 7 and 4

@PeterPete

2 жыл бұрын

@@scienceetc7958 so what you're saying is the meter doesn't know what acidity or alkalinity are or pH!

@user-mk5lz4ly5x

2 жыл бұрын

@@PeterPete Most instruments are calibrated with one, or two, or three buffer solutions. If high-precision measurement results are required, calibrate with three buffer solutions.

@PeterPete

2 жыл бұрын

@@user-mk5lz4ly5x so by using a number of buffer solutions one is 'programming' the device to know what acidity, alkalinity and pH are!

@user-lk4on7iw5g

2 жыл бұрын

@@PeterPete The device only receives a signal from the electrode. He must "read" the signal correctly. During calibration, the device "learns to read the signal correctly".

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