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[Chemical Knowledge]：Watch out! Use ph meter need to pay attention to these matters

Read： 107 Time：16months ago Source：Transform the World with Simplicity

In daily laboratory work, pH meter is a very common and very important instrument. It can help us quickly and accurately determine the pH of the solution, and is an indispensable tool in chemical analysis experiments. However, in the process of using the pH meter, there are some precautions that are very important. Let us understand it below.

1. Calibration pH meter
pH meter is a precision instrument, correct calibration is very important. Before each use, the pH meter needs to be calibrated to ensure its accuracy. The method of calibrating the pH meter is generally to use the standard solution for calibration and operate according to the steps in the instrument manual.
During the use of
, you should always pay attention to whether the instructions of the ph meter are normal and need to be corrected in time.

2. Avoid damage to the electrode The electrode of the
ph meter is a part that requires special attention. In the process of use, to avoid collision and fall, so as not to damage the electrode.

in the determination of the solution, but also to avoid the solution splashed near the electrode, which will affect the service life of the electrode.

3. Preservation of electrodes with care The preservation of
electrodes is also a place that requires special attention. To avoid moisture during storage, it is best to use a special storage bottle to save. When the

is not used for a long time, it also needs to be cleaned and stored with special care to avoid affecting the service life of the electrode.

4. Pay attention to the measurement conditions
when measuring the solution, you also need to pay attention to the measurement conditions. For example, the temperature of the solution will affect the determination of ph value, so pay attention to adjust the temperature when measuring.

should also pay attention to the stirring of the solution to ensure the accuracy of the determination.

5. the correct use of ph meter
the last and most important point is the correct use of ph meter. In the process of using the ph meter, be sure to follow the operation steps on the instrument manual to avoid changing the parameters at will.

should also be patient during the measurement and wait for the ph value to stabilize before recording to ensure the accuracy of the measurement results.

All in all, the pH meter is a very important experimental instrument. Special attention should be paid to various details during use to ensure the accuracy of the measurement results. I hope that through the introduction of this article, we can have a deeper understanding of the use of ph meter, and can better use it for experimental work.