J Chromatogr B Analyt Technol Biomed Life Sci
May 2008
A rapid and sensitive method was developed using high-performance liquid chromatography coupled with tandem mass spectrometry (LC/MS/MS) for the quantification of besifloxacin in human tears using sparfloxacin as the internal standard (IS). Besifloxacin was extracted from human tear samples using an ammonium formate buffer at pH 3.25.
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