Table 5: Results of recovery study via standard addition method with tablet.

MethodTablets studiedINH in
tablet
µg mL−1
Pure
INH
Added
µg mL−1
Total
Found
µg mL−1
Pure INH recovered* 
percent ± SD

AIsokin-3002.961.54.41
2.963.06.01
2.964.57.56

BIsokin-3001.010.51.51
1.011.02.04
1.011.52.55

Mean value of three determinations.