A new method used for the resolution of the desired components hidden in strongly overlapping chromatographic peaks, i. e. subwindow analysis (SA), is proposed in this paper. Making full use of information hidden in overlapping regions, SA successfully resovles the spectrum of the interested analyte. Then, orthogonal projection is used to obtain its corresponding chromtogrphic profile. The resolving ability of chromatography is greatly enhanced with this local resolution method. The proposed method can be...