Precision data for the determination of TR by the proposed method.

Proposed method
Conc. (μg mL−1)		3.0	10.0	15.0
Intraday	% founda	100.18	99.16	99.29
		101.71	100.54	100.62
		100.40	100.29	100.02
	Mean	100.77	99.997	99.98
	S.D.	0.83	0.73	0.67
	%RSD	0.82	0.73	0.67
	%Error	0.47	0.42	0.39
Interday	% found	99.12	98.90	98.38
		101.07	100.70	99.84
		99.82	100.40	101.46
	Mean	100.0	100.0	99.9
	S.D.	0.99	0.97	1.54
	%RSD	0.99	0.97	1.54
	%Error	0.57	0.56	0.89

^aN. B. Each result is the average of three separate determinations.