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Gonzalo-Lumbreras, R. et al.

Method development for corticosteroids and anabolic steroids by micellar liquid chromatography.

A systematic optimization of the HPLC separation of a complex mixture containing urinary steroids (anabolics and corticoids), boldenone and bolasterone (synthetic anabolics) by micellar liquid chromatography has been carried out. The isocratic micellar mobile phases (from binary to quaternary) consisted of sodium dodecyl sulphate and organic modifiers such as acetonitrile, tetrahydrofuran, propanol, butanol or pentanol. The effect of the organic modifiers, surfactant concentration, temperature, ionic strength and flow-rate on the separation has been studied. A micellar mobile phase made of 5% propanol and 40 mM surfactant allowed the separation of 13 steroids in about 23 min. A bivariant optimization method for the micellar mobile phase surfactant-propanol corroborated the above results. The separations obtained show good perspectives for future developments.[1]

References

Method development for corticosteroids and anabolic steroids by micellar liquid chromatography. Gonzalo-Lumbreras, R., Izquierdo-Hornillos, R. J. Chromatogr. B Analyt. Technol. Biomed. Life Sci. (2003) [Pubmed]

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