The Journal of Experimental Medicine, Vol 63, 819-826,
Copyright, 1936, by The Rockefeller Institute for Medical Research New York
QUANTITATIVE STUDIES ON THE PRECIPITIN REACTION
:
EFFECT OF SALTS ON THE REACTION
Michael Heidelberger Ph.D.1,
Forrest E. Kendall Ph.D.1, and
Torsten Teorell M.D.1
1 From the Department of Medicine, College of Physicians and Surgeons, Columbia University, and the Presbyterian Hospital, New York
1. A quantitative study has been made of the effect on the precipitin reaction between the specific polysaccharide of Type III pneumococcus and the homologous antibody of salt concentrations ranging from O.1 M to 1.79 M, including the effect of ions of higher valence.
2. Within these limits, observed decreases in precipitated antibody with increasing salt concentration appear to be due to a decrease in the amount of antibody combined with the S III, rather than to an increase in solubility of the S III-antibody compounds.
3. The egg albumin-antibody reaction is far less sensitive to changes in salt concentration than is the S III-antibody reaction.
Submitted on March 19, 1936