Table 3.

Results of precision for three different concentrations of 3,5,3′-triiodothyroacetic acid standard solutions

Nominal concentration (μg mL−1)	Mean concentration μg mL−1/RSD (%)
	Precision			Accuracy
	Day 1	Day 2	Day 3	All days
	(n = 5)	(n = 5)	(n = 5)	(n = 15)
6	5.69/0.001	5.87/1.06	5.72/1.41	5.76/1.45
50	50.8/1.17	49.2/0.512	49.5/1.35	49.8/1.76
90	91.7/1.02	92.2/0.802	91.9/0.490	91.9/0.83

Abbreviation: RSD, relative standard deviation.