The γ‐aminopropyl‐derivatized silica was treated with the (R)‐(‐)‐N‐(3,5‐dinitrobenzoyl)‐α‐phenylglycine and was packed into a standard 250 mm × 4.5 mm HPLC column to perform the chiral separation of secondary alcohol. Enantiomers of four homologous series of aryl alkyl substituted alcohol were resolved in different degrees. The chiral recognition mechanism was proposed that could be used to rationalize well the elution order and the resolution between the R‐ and S‐configuration of a secondary alcohol. The unresolved peak of the enantiomers of 1‐phenylethanol and the partially resolved peak of the enantiomers of 1‐(1‐naphthyl)ethanol were deconvoluted by the assistance of computer and a program written in BASIC computer language. Two mathematical models were used for the deconvolution and were based on modified Gaussian functions with a fixed baseline that can take into account the skew of a chromatographic peak. Parameters in the mathematical model were estimated by using a nonlinear regression algorithm. The selected mathematical models were suitable for deconvolving the less skewed overlapping peaks of 1‐phenylethanol.
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