amino acid mixture

[GysdeJongh]

"tracy" <dreamwestus at yahoo.com> wrote in message
news:Ubree.1253$II.871 at news.itd.umich.edu...
> Does anybody know a better way to make a 20 amino acid mixture?  I weighed
> each of them and combined them and autoclaved them, however, there is always
> something precipitating after a few days.  Thanks,


Hi,
are you sure that your mixture survived the autoclave ????
We make 10 x stocks , steriel filter , store at -20 in small aliquotes and mix
when needed.
hth
Gys