rapid and sensitive HPLC–UV method for the determination of ciprofloxacin in human plasma is
described. Protein precipitation with acetonitrile was used to separate the drug from plasma protein.
An ACE® 5 C18 column (250 mm
×
4.6 mm, 5 m) with an isocratic mobile phase consisting of phosphate
buffer (pH 2.7) and acetonitrile (77:23, v/v) was used for separation. The UV detector was set at 277 nm.
The method was validated in the linear range of 0.05–8 g/ml with acceptable inter- and intra-assay
precision, accuracy and stability. The method is simple and rapid and can be used to quantify this widely
used antibiotic in the plasma of patients suffering from Peripheral Arterial Disease.