Research Article

A Stability-Indicating High Performance Liquid Chromatographic Assay for the Simultaneous Determination of Pyridoxine, Ethionamide, and Moxifloxacin in Fixed Dose Combination Tablets

Figure 4

HPLC chromatogram comparison of blank (A) and a standard solution (B) having peak (1) pyridoxine, peak (2) ciprofloxacin (I.S.), peak (3) ethionamide, and peak (4) moxifloxacin—showing no interference of blank with any peak of interest.
258125.fig.004a
(a) Low attenuation
258125.fig.004b
(b) High attenuation