Typical ion concentrations in mammalian cytosol and blood

The concentrations of the other ions in cytosol are quite different from those in extracellular fluid and the cytosol also contains much higher amounts of charged macromolecules such as proteins and nucleic acids than the outside of the cell structure.

Reference 1: Concentration in cytosol (millimolar) and Concentration in blood (millimolar).

Reference 2: Potassium, Sodium, Chloride, Bicarbonate, Amino acids in proteins, Magnesium and Calcium.

Source: http://en.wikipedia.org/wiki/Hyaloplasm