Table 3.

Interday precision of the analytical HPLC method used to quantify albendazole sulphoxide (ABZSO), albendazole sulphone (ABZSO₂), and albendazole (ABZ) in saliva and blood (DBS) human samples.

Matrix	Analyte	Cnominal (µg/mL)	Quantified concentration (µg/mL)a ± SD	% CV
SALIVA	ABZSO	0.05	0.046 ± 0.002	4.76
		0.5	0.541 ± 0.06	10.1
		1	0.931 ± 0.12	13.6
	ABZSO2	0.05	0.044 ± 0.002	4.76
		0.5	0.537 ± 0.054	10.1
		1	1.077 ± 0.110	10.1
	ABZ	0.05	0.054 ± 0.003	5.54
		0.5	0.461 ± 0.06	13.5
		1	0.957 ± 0.161	16.8
DBS	ABZSO	0.2	0.166 ± 0.014	9.51
		0.6	0.642 ± 0.091	11.2
		2	1.987 ± 0.091	4.55
	ABZSO2	0.2	0.192 ± 0.010	5.49
		0.6	0.558 ± 0.097	16.6
		2	2.017 ± 0.116	5.73
	ABZ	0.4	0.395 ± 0.040	10.2
		0.6	0.664 ± 0.035	11.9
		2	2.03 ± 0.242	11.9

^a Values are expressed as arithmetic mean (n = 9). C_nominal: nominal concentration.