[Tasha]

How can it be prepared from scratch? I have 0.1 grams of raw gold and after dissolving it, I want to dilute it to the desired value, then I want to use it to prepare gold nanoparticles so that they form perfectly and at the required concentration with the correct calculations. I have Sodium citrate tribasic dihydrate, RPE as a reduction agent."
How to prepare this pls!?

[Borek]

Please read the forum rules, you have to show your efforts at answering the question to receive help.

There is plenty of information on the internet - have you tried to read anything? Do you have any specific questions?