Pattern Recognition and Iterated Target Transformation Factor Analysis for Spectrophotometry to Determine Simultaneously the Five Multicomponents Nitrobenzens

The fivespectrum-overlapping multicomponents nitrobenzene, 2,4-dinitrochlorobenzene, p-nitrotoluene, m-nitrotoluene and p-chloronitrobenze, were determined by usingUV-spectrophotometry with the iterative target transformation factor analysis (ITTFA)andcluster-factor analysis. The method used was applied to the simultaneous qualitative andqualitative analysis for the five multicomponents in the mixture samples, which broughtabout satisfied results the relative standard deviation is within 5%.