Table 5. Zero-level fitting equations for different concentrations of aconitine in different rat gut sacs.

Rat gut sacs	Concentratio(/ng·mL-1)	Fitting equation	Determination coefficient (R2)
	7500	Q = 3.528t	0.9338
duodenum	750	Q = 0.05406t	0.9834
	75	Q = 0.02546t	0.9715
	7500	Q = 3.2531t	0.9462
jejunum	750	Q = 0.2028t	0.9345
	75	Q = 0.02977t	0.9498
	7500	Q = 2.529t	0.9455
ileum	750	Q = 0.2906t	0.9688
	75	Q = 0.01294t	0.9188
	7500	Q = 2.000t	0.9695
colon	750	Q = 0.1302t	0.9548
	75	Q = 0.01937t	0.9521