Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates


  • 18 Accesses

This is a preview of subscription content, log in to check access.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Plank, J., Freytag, H. & Pohl, H. Phosphat. Z. Anal. Chem. 147, 123–125 (1955). https://doi.org/10.1007/BF00701277

Download citation