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com/media/resourcecenter/item//n/f/nfs200_ninhydrin_fixative
90cm (Straight)
A fluorescent light source that will output light between 495 nm and 530 nm is required for this process
40 and 80 degrees beam cone or a line of light using the 60 x 1 degree filters
ThermaNin L scale com/media/resourcecenter/item//n/f/nfs200_ninhydrin_fixativeThermaNin is a ninhydrin derivative for developing fingerprints on thermal paper. Regular ninhydrin and DFO solutions are either based on polar solvents (like acetone or ether) or contain them. These turn the top (active) layer of thermal paper gray or black. Japanese researchers have published that hemiketals of ninhydrin are soluble in petroleum ether (or other polar solvents like pentane, heptane) without the need for addition of polar solvents.
