- A dictionary of medical eponyms

Weichardt's reaction

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Test based on the change of surface tension when antigen and antibody react with each other in certain dilutions. The number of drops is determined with a stalagmometer. The number increases when the surface tension decreases. The test has been used in diagnosis of tumours and tuberculosis. It is the same as Ascoli’s reaction.

Weichardt 1909, Ascoli 1910.

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