Table 3. Validation results of accuracy, precision, HorRat value and relative expanded uncertainty of Norbixin

Samples	Added standard (mg/L)	Intra-day1)			Inter-day2)			Relative expanded uncertainty (%)
		Accuracy (%)3)	Precision (%RSD)	HorRat (r)4)	Accuracy (%)	Precision (%RSD)	HorRat (r)5)
Cheese	2	94.32±1.26	1.33	0.19	96.96±1.87	1.93	0.27	10.7
	5	88.16±0.83	0.95	0.15	91.23±2.34	2.56	0.41	4.7
	10	92.86±0.30	0.32	0.06	93.73±1.35	1.44	0.26	2.8
Processed milk	2	97.53±0.88	0.90	0.13	98.17±0.88	0.89	0.12	9.4
	5	103.67±0.50	0.49	0.08	104.30±0.87	0.84	0.13	3.9
	10	105.07±0.31	0.30	0.05	105.81±0.80	0.75	0.13	2.5
Ham	2	96.44±1.73	1.79	0.25	100.36±2.70	2.69	0.37	10.6
	5	91.69±1.48	1.62	0.26	93.28±2.33	2.50	0.40	4.7
	10	91.66±1.13	1.23	0.22	92.98±1.93	2.07	0.37	2.9

Analysis was conducted six time/day.
Analysis was conducted three times on three days.
Average±SD.
HorRat ratio for intra-day repeatability.
HorRat ratio for inter-day repeatability.
RSD, relative SD.