He was involved in early research on the electron scanning microscope, studied radioactive elements and developed a model for the periodic table.
On 4 July 1928 he was appointed an extraordinary professor of physical chemistry at the University of Giessen, lecturing on X-ray spectroscopy.
A chart recorder would represent the linear dimension of a particle by the width of a deflection, and its amplitude by thickness.
[10][11] Almost forty years later, a computer-controlled scanning electron microscope based on his specifications was built and tested.
[14] In 1936, Stintzing was appointed to Technische Hochschule Darmstadt, to replace Paul Knipping, who had died unexpectedly.
[15][16] Stintzing held a lectureship (Lehrauftrag) at Darmstadt as of 1 April 1936, and was appointed Director of the Institute of X-Ray Physics and Technology as of 1 October 1936.
On 10 June 1943 he received promotion to the rank of extraordinary professor of X-ray physics and technology at Darmstadt.
[20][19] As of 4 November 1955, Stintzing applied for a patent for a Method and apparatus for improving the effectiveness of radioactive sources, which was granted on 27 March 1958.