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A rapid method for the determination of cy-clopentyl derivative of rifampicin, DL 473, wasreported. High performance liquid chromatographModel 344 (Beckman, USA) fitted with rever-sed-phase ultrasphere ODS (5μm) column andequipped with a variable wavelength dual chan-nel UV detector was used. The mobile phaseconsisted of CH_3OH and 0.01M pH 5.5 phosphate
A rapid method for the determination of cy-clopentyl derivative of rifampicin, DL 473, was reported. High performance liquid chromatograph Model 344 (Beckman, USA) fitted with rever-sed-phase ultrasphere ODS (5μm) column andequipped with a variable wavelength dual chan- Nel UV detector was used. The mobile phaseconsisted of CH_3OH and 0.01M pH 5.5 phosphate