Abstract
Summary
A standard solution of antipneumococcal rabbit antibody type III was titrated with varying dilutions of capsular polysaccharide, in the zone of antibody excess. Photronreflectometric readings were made after 20 minutes of incubation at 37°C and a standard curve made. Unknown concentrations of SSS can be determined by identical titrations of varying dilutions with reference to the standard curve, provided a single system is utilized.
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