The optical constituents like chlorophyll-a (Chl-a), coloured dissolved organic matter (ag) and particulate matter play significant role in presence of light field within the water bodies. The apparent optical perturbations take place in the varying inherent optical properties of the medium. The present study elaborates the importance of parameterizations for bio-optical algorithms in order to isolate the detritus absorption coefficient (ad) unlike the integrated response of absorption coefficient due to coloured dissolved organic matter and detritus/degraded matter at 443nm. Here attempt has been made to meet the two major limitations, ie, choosing the right parameterizations for the model and also for isolating detritus absorption coefficient from remote sensing reflectance. Detritus absorption coefficient (ad) at 443nm was derived from remote sensing reflectance (Rrs) with a mean absolute percentage difference (MAPD) of 40% and coloured dissolved organic matter(ag) at 443nm with MAPD of 30% using NASA Bio-optical marine algorithm (NOMAD) dataset for global waters.