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Aim: The main aim of the present work is to develop and validate a new simpler, selective, specific, and robust
high performance liquid chromatographic method for the separation of Eliglustat and its isomers. Materials and
Methods: For the accurate quantification method, for the all isomers was developed by performing the significant
number of methods on trial and error techniques using a large number of polar and non-polar solvent mixtures
as mobile phase. A distinctive resolution between Eliglustat and its stereo isomers was achieved on Immobilized
Amylose tris (3-chloro-4-methylphenylcarbamate) stationary phase namely CHIRALPAK IF-3(4.6 mm Ã—
250 mm, 3 Î¼m), with flow rate of 1.0 mL/min using isocratic method containing n-Hexane/Ethanol/Methanol/
Diethyl amine (90/05/05/0.1,v/v/v/v). Column temperature was maintained at 40Â°C and detection wavelength
of 280 nm. Results and Discussion: The limit of detection and limit of quantification values of Eliglustat S,SIsomer,
R,S-Isomer, and S,R-Isomers were found to be 0.0027/0.0082, 0.0367/0.1112, and 0.0375/0.1137 Î¼g/mL,
respectively. The method was found to be precise, accurate, and linear (R2 > 0.999). Recoveries of all isomers
were found to be in the range of 90â€“110%. Conclusion: As per the ICH guidelines, the developed method has
been shown to be linear, accurate, precise, robust, and sensitive. The method is also considered quality control
friendly as it is robust, uses isocratic mobile phase and employs commonly used solvents as mobile phase.
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