Phosphate buffered saline: Difference between revisions
removed [PO4]-4 ion |
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To make a 10 liter stock of 10x PBS: | To make a 10 liter stock of 10x PBS: | ||
#weigh the following | #weigh the following | ||
::* | ::*80g NaCL | ||
::* | ::*2g KCL | ||
::* | ::*14.4g Na2HPO4 | ||
::* | ::*2.4g KH2PO4 | ||
#add and dissolve in 8L of distilled water under mixing | #add and dissolve in 8L of distilled water under mixing | ||
#adjust PH to 7.4 with concentrated HCl under constant mixing | #adjust PH to 7.4 with concentrated HCl under constant mixing | ||
Revision as of 10:32, 5 July 2006
Phosphate buffered saline (abbreviated PBS) is a buffer solution commonly used in biochemistry. It is a salty solution containing sodium chloride, sodium phosphate and potassium phosphate. The buffer helps to maintain a constant pH. The concentration usually matches the human body (isotonic).
PBS has many uses because it is isotonic and non-toxic to cells. It can be used to dilute substances. It is used as a cellular cleaning solution. In addition, PBS is also used to disengage attached and clumped cells.
To make a 10 liter stock of 10x PBS:
- weigh the following
- 80g NaCL
- 2g KCL
- 14.4g Na2HPO4
- 2.4g KH2PO4
- add and dissolve in 8L of distilled water under mixing
- adjust PH to 7.4 with concentrated HCl under constant mixing
- fill up to 10 liters with distilled water