Table 1. Pyrrole adducts concentration on the endpoint.

	2,5-HD (nmol/ml)		n-hexane (nmol/ml)
	Serum	Urine	Serum	Urine
Control	1.4 ± 0.4	1.2 ± 0.3	1.3 ± 0.4	1.1 ± 0.2
Low dosage	14.4 ± 4.0**	48.7 ± 4.4**	11.1 ± 3.0**	46.2 ± 4.8**
Middle dosage	29.3 ± 6.0**	90.7 ± 13.7**	25.0 ± 9.4**	96.7 ± 15.9**
High dosage	36.5 ± 9.0**	145.3 ± 24.2**	41.2 ± 12.8**	164.5 ± 22.5**

Compared with control group,

^**P<0.01.