Describes interactive, computer-graphics program emulating behavior of high resolution, ultraviolet-visible analog recording spectrophotometer. Graphics terminal behaves as recording absorption spectrophotometer. Objective of the emulation is study of optimization of the instrument to yield accurate absorption spectra, including…

A Fortran IV program is described which calculates relative peak intensities of any molecular or fragment ion and displays them graphically as a bar graph resembling a mass spectrum. Documentation, including listing, sample usage, and sample execution is available free of charge. (Author/JN)