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Sample preparation
Posted: Fri Feb 17, 2023 8:48 am
by Talal
Hello all,
please help me with preparing the following:
"50 μL of 30 wt % HAuCl4 in HCl solution (17 wt % Au) was added to 1.5 mL of oleylamine".
Thanks in advance
Re: Sample preparation
Posted: Fri Feb 17, 2023 11:08 am
by ChenBeier
What is the problem. You need a 30wt% of HAuCl4 dissolved in HCl conc.
Re: Sample preparation
Posted: Fri Feb 17, 2023 11:36 am
by Talal
Actually I am bad in chemistry.
30%wt of HAuCl4 is how much of HAuCl4 dissolves in how much of HCl. And what is the concentration of the HCl?
Sorry for disturbing you
Re: Sample preparation
Posted: Fri Feb 17, 2023 11:52 am
by ChenBeier
wt% means weight percentage. So if you make 1 g then you have to add 0,3 g of HAuCl4 or better calculated with AuCl3 0,267 g, which is easier to get. The HCl is then 0,7 g concentration. 37 wt% or 0,732 g if Gold-III-chloride is used.
For other masses you have to convert the values.