SPF 1951: Behold the First Spectrophotofluorometer!
In 1951, Dr. Robert Bowman showed visitors to NIH’s Building 3 his prototype of a device that scanned wavelengths of fluorescent light emitted from various samples. Bowman’s spectrophotofluorometer, or “SPF,” allowed scientists to use fluorescence as a way to identify and measure tiny amounts of substances in the body. This scientific breakthrough is still used today.
