Table 3.

Accuracy, intra- and interday precision of the standard compounds in DQ.

Compound	Spiked Amount (mg/mL)	Content (mg/mL)		Recovery Test (%, n = 5)	Precision Test (n = 5)
		Un-Spiked	Measured		Intra-Day RSDa(%)	Inter-Day RSD (%)
1	0.012	0.081910	0.0820287	101.0	0.24	0.55
	0.04	0.109910	0.1073792	93.7	1.91	0.15
	0.12	0.189910	0.188932	99.2	0.62	0.28
2	0.012	0.130902	0.1316462	106.2	0.31	0.73
	0.04	0.158902	0.1582045	98.3	0.75	0.50
	0.12	0.238902	0.2368625	98.3	1.15	0.48
4	0.012	0.212048	0.2116199	96.4	0.41	0.38
	0.04	0.240048	0.2400817	100.1	0.44	0.75
	0.12	0.320048	0.3210118	100.8	0.26	0.52
5	0.012	0.192213	0.1918098	96.6	0.27	0.29
	0.04	0.220213	0.2220230	104.5	0.67	0.70
	0.12	0.300213	0.2928230	93.8	0.82	0.33

^a RSD: relative standard deviation.