
Tiselius was a Chemistry student at the University of Uppsala. Here he became an assistant to Theodor Svedberg in 1925. In 1930 he obtained his PhD. In 1938, a special research chair in biochemistry was created for him, which he occupied until 1968. He also developed the use of electrophoresis for the delicate task of separating proteins in suspension on the basis of their electrical charge. For this work he was awarded his doctorate in 1930. His main achievement for which he was awarded the Nobel Prize in chemistry was when he bettered his electrophoresis apparatus in 1937 and confirmed the existence of four different groups of proteins. Namely, albumins and alpha, beta, and gamma globulins.
Tiselius played an active role in reorganizing scientific research in Sweden after the Second World War. He became the chairman of the Swedish Natural Science Research Council (1946-50) and then went on to become the vice president (1947-60) and president (1960-64) of the Nobel Foundation.