Fingerprinting epoxy resin systems using two-dimensional reversed-phase thin-layer chromatography

Abstract Obtaining reproducible strengths from composites and adhesives composed of complex epoxy resin systems requires a close control of resin formulations. Commonly used liquid chromatographic procedures can be time consuming and do not always provide complete separations. The use of two-dimensional reversed-phase thin-layer chromatography can provide a well-resolved fingerprint of complex resin systems, without many of the drawbacks of other chromatographic methods.