Differences between ph meters for solutions, creams and oils

Hello, can anyone advise about specified differences between ph meters for solutions, cream and oil.

Welcome to PF.

Physics man 2000 said:

Hello, can anyone advise about specified differences between ph meters for solutions, cream and oil.

To be honest, this looks like a spam setup post, but I'll play along for now.*

At PF, we require users to do their own research before posting questions here. So what have you found in your searching so far?

*But in linking to what you have found, please avoid linking to advertising websites...

Maybe @berkeman made the right guess. Otherwise, did you try checking with merchants of pH meters? Is your question based on interest from your education, your experience, or a hoped-for application? I am strongly guessing that pH measurement would only have meaning for water-based blend or mixture or solution. Or maybe for some water dispersed in non-aqueous materials. Experts could respond.

So I googled the question and found an interesting article quite easily.
Let's wait to the OP tells us what research they have done first.