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发表于 2011-3-25 14:44:50
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我们现在用的是贝克曼的原装PBS干粉,就是那种一包可以配制500mll规格的,因为用量不是太大,所以一直都是 ...
一成天 发表于 2011-3-25 14:44
PBS (phosphate-buffered saline)
0.23 g NaH2PO4 (anhydrous; 1.9 mM)
1.15 g Na2HPO4 (anhydrous; 8.1 mM)
9.00 g NaCl (154 mM)
Add H2O to 900 ml
If needed, adjust to desired pH (usually 7.2 to 7.4) with 1 M NaOH or 1 M HCl
Add H2O to 1 liter
Filter sterilize
Store indefinitely at 4°C
Without pH adjustment, pH will generally be ~7.3.
Some laboratories find it convenient to prepare PBS at 10× concentration and dilute this to make the working solution. |
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