Weidel reaction

Wei·del re·ac·tion

(vī'del), a reaction showing the presence of xanthine; a solution of the suspected substance in chlorine water with a little nitric acid is evaporated in a water bath, and then exposed to the vapor of ammonia; the presence of xanthine is indicated when a red or purple color develops.

Weidel reaction

An obsolete term for a colorimetric chemical reaction formerly used to identify xanthine in a fluid of clinical interest.

Weidel reaction

(vī′dĕl) [Hugo Weidel, Austrian chemist, 1849–1899] An obsolete test for the presence of uric acid or xanthine bodies.

Weidel,

Hugo, Austrian chemist, 1849-1899. Weidel reaction - a reaction showing the presence of xanthine.