Fritz Georg Arndt (6 July 1885 – 8 December 1969) was a German chemist recognised for his contributions to synthetic methodology, who together with Bernd Eistert discovered the Arndt-Eistert synthesis.
When World War I began in August 1914 he enlisted to fight for the Kaiser however was rejected because of his varicose veins.
He returned to the University of Breslau where he stayed until he was forced to abandon his office in 1933 by the newly elected Nazi government.
Arndt's elder son Heinz Wolfgang Arndt (1915–2002) was a noted Australian economist based in Canberra while his granddaughter Bettina (born 1949) is a noted Australian journalist and sex therapist.
Jessell was a prized pupil of the renowned paintings conservator Helmut Ruhemann (1891–1973) from 1937 to 1939.