Determination of residual solvents in gatifloxacin by headspace capillary gas chromatography
- Received Date: 2009-08-16
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Key words:
- gatifloxacin /
- residual solvents /
- headspace capillary gas chromatography
Abstract: Objective :To establish a method for determination of five residual solvents in gatifloxacin. Methods : The residual organic solvents which are ethanol,acetonitrile,dichloromethane,ethyl acetate,toluene were quantitatively determined by headspace GC on DM-624 column,90%DMF as solvent media,with FID detector,high purity nitrogen as the carrier gas. Results : Five residual solvents were completely separated.There was a good linearity(r=0.999 7~0.999 9).The detection limit of ethanol,acetonitrile,Dichloromethane,ethyl acetate,toluene were all less than 3μg/g;the RSD of precision was less than 5%;the average recovery rate of the preparation was in the range of 94.8%~98.6%. Conclusion :The method is simple,rapid,sensitive and can be used for the quality control of gatifloxacin.
Citation: | CAI Lin, YAN Ju-jiao, LI Heng. Determination of residual solvents in gatifloxacin by headspace capillary gas chromatography[J]. Journal of Pharmaceutical Practice and Service, 2009, 27(5): 365-366,387. |