Scientific, optical and laboratory apparatus and instruments including parts therefor, namely, spectrophotometers, infrared spectrophotometers and fourier infrared spectrophotometers; Downloadable software for use in measuring the absorption of light to determine the identity, presence and amount of molecules; Downloadable software for use in analyzing a target with high sensitivity; Downloadable software for controlling spectrophotometers, infrared spectrophotometers, fourier infrared spectr...