Calibration of pH meter

Exam is officially over and we have been again throw into a hole of boringness

since had been helping for the whole day in school for the "Swinburne Sarawak Info day"

today's post gonna be short and acidic

Today's star gonna be our electronically pH meter~

 you can call him by his company, the  ：“Mettler toledo~~~~”

Since it was too easy to be used ( put the probe into the solution), i will only be showing you about how to calibrate your pH meter, which is suppose to be done before you did your analysis.

a standard buffer is usually provided by the company~

it can come in a bottle form, or in packet form

so, in this case~we pour them into a universal bottle for easier calibration.

so, here's a pH 7 buffer~is a bit greenish in color. 

secondly is the his girlfriends, the acidic buffer~

 and the last will be the 3rd party, the basic buffer

so always, ladies 1st. The probe in placed into the buffer and the "cal" button is pressed~

The reading will jump for a few seconds before it is established

then, the probe is used to calibrate the instrument. The "cal" is pressed again, and the waiting was repeated.

Poof~!done, the pH meter is now ready to be used~~~!!!!!!!!

as easy as eating a piece of fried chicken~~

finally, a close view of the probe. We are always remind that the bulb on the edge is highly sensitive and fragile, therefore, be careful not to knock it on anything~!

that's all for today

good night and sleep tight~!