Table 4

Sample type	Concentration added µgml^-1	% mean recovery	% RSD
Plasma	0.200	92	4.0
	1.000	96	3.3
	10.000	94	3.2
Brain	0.200	90	1.9
	1.000	92	1.7
	10.000	92	1.1
Liver	0.200	90	2.5
	1.000	92	4.5
	10.000	91	4.9
Kidney	0.200	87	3.4
	1.000	90	2.3
	10.000	88	3.9

Table 4: % mean recovery of INH from plasma and tissue homogenates.