Isocratic Resolution of Fluoroquinolone-Based Antibiotics on the Phenylethyl-Bonded Phase under Nonaqueous Elution: A Consideration of the Separation Mechanism

<div>Superimposed FTIR spectra for three selected analytes, including difloxacin, enrofloxacin, and pipemidic acid on the phenylethyl (a) and C<sub>18</sub> (b) phases. In both cases, FTIR spectra for phenylethyl and C<sub>18</sub> phases were included for comparison.</div>

International Journal of Analytical Chemistry

fig5

Figure 5

Figure 5: Isocratic Resolution of Fluoroquinolone-Based Antibiotics on the Phenylethyl-Bonded Phase under Nonaqueous Elution: A Consideration of the Separation Mechanism 

Figure 5 | Isocratic Resolution of Fluoroquinolone-Based Antibiotics on the Phenylethyl-Bonded Phase under Nonaqueous Elution: A Consideration of the Separation Mechanism 