The optimized HPLC method was validated
for specificity, accuracy, precision, linearity, limit of
detection and limit of quantitation. Accuracy of this HPLC
method could be defined in terms of percent recovery
from the spiked concentrationof five concentrations.
Within-day and between-day precision were done to
assure the precision of the method. Linearity was tested
by using linear regression analysis and the coefficient
of determination was then calculated. For detection
limit and limit of quantitation, standard solutions were
diluted until signal/noise ratio approximately close to 3
and 10 respectively.