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PBS (phosphate-buffered saline)
0.23 g NaH[sub]2[/sub]PO[sub]4[/sub] (anhydrous; 1.9 mM)
1.15 g Na[sub]2[/sub]HPO[sub]4[/sub] (anhydrous; 8.1 mM)
9.00 g NaCl (154 mM)
Add H[sub]2[/sub]O to 900 ml
If needed, adjust to desired pH (usually 7.2 to 7.4) with 1 M NaOH or 1 M HCl
Add H[sub]2[/sub]O to 1 liter
Filter sterilize
Store indefinitely at 4°C
Without pH adjustment, pH will generally be ~7.3.
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