Table 3.

Experimental and reference values of log P for tested compounds

The test substance	Experimental and reference values of log P
	log Pexp. n-oct/buf pH=6.8 a	log P	log P pH = isoelectric point b	log Ptrue b
Ciprofloxacin	−0.55	−1.10 n-oct/buf pH = 7 c	−1.07	−0.13
Norfloxacin	−0.92	−1.52 n-oct/buf pH = 7 c	−1.07	−0.43
Pefloxacin	0.19	0.26 n-oct/buf pH = 7 c	0.37	1.34
Sparfloxacin	−0.11	−0.31 d	−0.09	0.39
Gatifloxacin	−0.80	-	−0.71	0.54

Values from:

^aOur results

^bG. Volgyi et al., 2012 [5];

^cY. X. Furet, J. Deshusses, J. C. Pechere., 1992 [26];

^dO. Cramariuc et al., 2012 [27]