Analytical performance data for the determination of TR by the proposed method.

Parameter	TR
Range (μg mL−1)	0.679–15.0
Linearity range (μg mL−1)	1.0–15.0
Intercept (a)	67.98
Slope (b)	19.61
Correlation coefficient (r)	0.9998
S.D. of residuals (Sy/x)	2.11
S.D. of intercept (Sa)	1.331
S.D. of slope (Sb)	0.149
Percentage relative standard deviation, %RSD	0.993
%Error	0.351
Limit of detection, LOD (μg ml−1)	0.224
Limit of quantitation, LOQ (μg ml−1)	0.679