Urine Sample
added
(×10-6 mol l-1)
Found
(×10-6 mol l-1)
Average recovery
(%,
n
= 5)
R.S.D.
(%,
n
= 5)
1 2 3
0.70
3.00
0.70
3.00
0.70
3.00
0.72
2.90
0.74
3.13
0.69
3.22
103
97
106
104
99
107
2.2
1.7
1.8
2.9
2.6
1.9
Table 2:
Results for the determination of isoniazid in spiked urine samples
