Figure 4

Typical chromatogram of co-formulated prepared tablet of 25 μg/mL LEV and 6 μg/mL AMB using 8 μg/mL FUR (I.S) in 0.15 M SDS, 0.3% triethylamine, 8% n-propanol all prepared in 0.02 M orthophosphoric acid at pH 4.0.