Table 2: Determination of chitosan in pharmaceutical formulation by the proposed method.

SampleChitosan content declared in label (mg)Sample taken (μL)Chitosan calculated (mg)Chitosan found (mg)% of chitosan in formulation ± SERecovery (%)a  ±  SE

200.0290.022
400.0590.044
Chitocal capsule500 mg600.0880.067
800.1180.089
1000.1470.119
Mean ± SE

a Recovery (%) values were calculated from the amount of chitosan that had been determined after addition of its different amounts to a fixed amount of dosage form (capsule). The data are average of three determintaions.