Questions about PH standard solutions? ?
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I prepared a standard solution with a pH of 4 (in accordance with national standards), and after using it for some time, some solid particles appeared in the solution. I’m not sure what the cause is; I hope everyone can help explain it. Thank you!
Is it that your analysis reagents are not up to standard? You can get another one; store it in the fridge when not in use
:Victory: Hehe! Reconfiguring is the best solution; there are specialized products available on the market that meet this PH standard! ~
What is the standard solution? Is it because of the hot weather right now?
The appearance of particles in the solution is a common phenomenon; it may be due to prolonged use or contamination. You can prepare the solution again, and it is recommended to use the ready-to-use products available on the market