Bettendorff test

Bet·ten·dorff test

(bet'ĕn-dōrf),
a test for arsenic; after mixing the suspected fluid with hydrochloric acid a solution of stannous chloride is added; when a piece of tin foil is then added, a brown precipitate forms.

Bettendorff,

Anton J., German chemist, 1839-1902.
Bettendorff test - a test for arsenic.