http://dx.doi.org/10.4314/tjpr.v11i2.14
Abstract
Purpose: An ultraviolet spectrophotometric
system was developed and validated for the quantitative
determination of lornoxicam in solid dosage forms.
Methods: Lornoxicam was dissolved in 0.01M
NaOH and analysed using ultraviolet (UV)
spectrophotometry. Various analytical parameters such as
linearity, precision, accuracy, limit of detection (LOD)
and limit of quantification (LOQ) were determined
according to International Conference on Harmonization (ICH)
guidelines.
Results: Absorbance maximum in 0.01M NaOH was
377 nm. Beer’s law was obeyed over the concentration
range of 2 - 20 mg/ml with a correlation coefficient (r2)
value of 0.999. Percent range of error was 0.344 and
0.261 at 0.05 and. 0.01 confidence limits, respectively.
Intra- and inter-day precision (% RSD) at different
concentration levels were < 2 %, indicating that the
proposed derivative spectrophotometric method is highly
reproducible during one run and between different runs;
LOD and LOQ were 0.105 and 0.318 mg/ml, respectively
signifying that it can be adopted for routine quality
testing. Mean recovery was 100.82 % for tablets. Low
values of % RSD indicate the reliability of the proposed
method
Conclusion: The proposed method is highly sensitive, precise,
accurate, cost-effective, reliable and rapid for the
estimation of lornoxicam in solid dosage forms.
Keywords:
Lornoxicam, UV Spectrophotometry, Quantitative
determination, Solid dosage forms.