Chromatography+RECOVERY=superresolution chromatography

A method for improving the resolution of the chromatographic analysis based on deriving the point-spread function of a chromatographic column, i.e., a chromatogram of an individual compound, is described. The system of two data sets, namely, a chromatogram of a substance analyzed and a point-spread function of a chromatographic column in combination with the noise statistics, makes it possible to use the RECOVERY signal-reconstruction software package described in paper by Gelfgat et al. (Comp. Phys. Commun. 74 (1993) 335). The proposed method has been tested by chromatography of bovine serum albumin using gel filtration. The resultant resolution exceeds that reached using high-performance liquid chromatography (with the cost of the instruments being lower by a factor of 15–20).