Spectroscopic comparative analysis of nicklecholoride, cobalt sulphate, copper nitrate and copper chloride solution filters

The study of the filters is essential in colorimetry. The filters are mostly used to get monochromatic radiation of a particular frequency band. The best filter is that which gives minimum transmission for a give concentration and depth of cell. The observations of various experiments regarding the individual transmittance spectra, expected transmittance spectra superimposed spectra and observed spectra of solution filters shows various spectral region at 0.01 M concentration.