Hammarsten reagent

Ham·mar·sten re·a·gent

(hahm'ar-sten),
a mixture of 1 part 25% solution of nitric acid and 19 parts 25% solution of hydrochloric acid; the addition of a few drops to a mixture of 1 part of this reagent and 4 parts alcohol produce give a green color if bile is present.
[O. Hammarsten]

Hammarsten,

Olof, Swedish physiological chemist, 1841-1932.
Hammarsten reagent - a mixture of hydrochloric acid and alcohol to test for bile.