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Phosphate-buffered saline
Phosphate-buffered saline (abbreviated PBS) is a buffer solution commonly used in biological research. It is a water-based salt solution containing sodium dihydrogen phosphate, sodium chloride and, in some formulations, potassium chloride and potassium hydrogen phosphate. The osmolarity and ion concentrations of the solutions match those of the human body (isotonic).
==Applications==
PBS has many uses because it is isotonic and non-toxic to most cells. These uses include substance dilution and cell container rinsing. PBS with EDTA is also used to disengage attached and clumped cells. Divalent metals such as zinc, however, cannot be added as this will result in precipitation. For these types of applications, Good's buffers are recommended.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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