Capture Full Spectrum, Perform Elemental Fingerprinting Prodigy's advanced Full Spectrum Acquisition mode of data acquisition, allows the user to capture a permanent record of the full DC Arc spectrum for future reference. It also allows the user the ability to subtract spectra from one another - an extremely powerful qualitative analysis tool. Imagine being able to subtract a standard reference spectrum of the product that you are trying to QC from every new lot produced and seeing any new contaminates jump right off the screen for you to view.