... Analytical possibilities of digital colorimetry. determination of nitrite using polyurethane foam . Abstract By the example of determination of nitrite as polymeric azodye, the possibility of using office scanner, digital camera and computer data processing in different colorimetric coordinates systems ( RGB, CMYK, LAB and HSV ) has been studied. ... Moscow University Chemistry Bulletin . 2011, Vol. ... Copyright (C) Chemistry Dept., Moscow State University, 2002 . ...