Cytochemical method for demonstrating magnesium-activated adenosine triphosphatase in haemic cells

A modified cytochemical method was developed for demonstrating magnesium-activated adenosine triphosphatase in haemic cells. The enzyme was shown in a variety of normal and leukaemic, unfixed cells. The high sensitivity of this enzyme to all fixatives tried in this study hampered further exploration and characterization of this enzyme.