text: From 1809 he was professor at the University of Paris. He was elected a member of the American Philosophical Society in 1811 and a foreign member of the Royal Swedish Academy of Sciences in 1816. He was elected to the Chamber of Deputies in 1828. In 1806, working with asparagus, he and Pierre Jean Robiquet (future discoverer of the famous red dye alizarin, then a young chemist and his assistant) isolated the amino acid asparagine, the first one to be discovered. He also discovered pectin and malic acid in apples, and isolated camphoric acid and quinic acid.
  His death occurred while he was on a visit to his birthplace.
  Among his best known works is "Manuel de lessayeur"' (Manual of the assayer).
  The plant genus Vauquelinia is named in his honour, as is the Vauquelin, a white of egg foam associated with molecular gastronomy, and the mineral vauquelinite, discovered at the same mine as the crocoite from which Vauquelin isolated chromium.