Parameters TLCmethod HPLC method ALP BENZ ALP BENZ Calibration range 0.3-3 μgmL-1 0.3-3 μgmL-1 1-50 μgmL-1 3-50 μgmL-1 Slope 0.5693 0.2003 0.0147 0.0380 Intercept 0.1668 0.0478 0.0028 -0.0261 Correlation coefficient(r) 0.9999 0.9998 0.9999 0.9999 Accuracy 100.25 100.53 99.85 99.53 Precision Repeatability 1.174 0.935 0.470 0.859 Intermediate precision 0.662 1.354 1.190 0.755

Table 2: Regression and analytical parameters of the proposed methods for determination of Allopurinol and Benzbromarone.