Product Overview：

Phosphate Buffered Saline (PBS) is intended to provide a buffer system for maintaining cell culture media. It generally serves as an isotonic saline solution or buffer for washing cells and tissues.  It's utility in maintaining mammalian cells when a chemically-defined, balanced salt solution provides the appropriate milieu to sustain the physiological and structural integrity (i.e. tonicity/viability) of cells in vitro for a limited period of time.  Biological Industries offers a range of DPBS formulations. 

PBS without calcium (Ca2+) and magnesium (Mg2+) is often used in trypsin solutions, and in the dissociation process to wash and resuspend cells when the presence of calcium and magnesium may inhibit trypsin activity.

This PBS is PH=7.4 and modified as follows:

Without:

Calcium

Magnesium

Link：https://www.bioind.com/worldwide/dpbs-ph74/

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