Sodium phosphate buffer

[CZJ at CU.NIH.GOV]

>
>        I usually assume that any dilution of a 0.2M solution will not change
> the pH provided that nanopure, or equivalent, water is used.
>        I hope this is of some help.
>
>                                                Alex Jeffries
>
>
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>
>

The pH would actually change on dilution because the ionic strength
would change and the pKa of phosphate changes as a function of pH.

Jim Cassatt