0.2M PB pH 7.2
2 L
4 L
Na
2
HPO
4
·7H
2
O
82.65 g
165.3 g
NaH
2
PO
4
12.8 g
25.6 g
pH to 7.2 with HCl or NaOH
Adjust volume with H
2
O.
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