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Updated: Jun 19, 2026
Determining the Reactivity and Titre of Serum using a Haemagglutination Assay
Published on: January 29, 2010
THE STABILITY OF BACTERIAL SUSPENSIONS : II. THE AGGLUTINATION OF THE BACILLUS OF RABBIT SEPTICEMIA AND OF BACILLUS
1Laboratories of The Rockefeller Institute for Medical Research.
Abstract:
1. Measurements have been made of the potential and of the cohesive force at the surface of Bacillus typhosus and the bacillus of rabbit septicemia in solutions of various salts and acids. 2. Electrolytes in low concentration (0.01 N) affect primarily the potential, and in high concentration decrease the cohesive force. 3. As long as the cohesive force is not affected, agglutination occurs whenever the potential is reduced below about 15 millivolts. 4. When the cohesive force is decreased the critical potential is also decreased, and in concentrated salt solution no agglutination occurs even though there is no measurable potential.
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