. 2010 May 31;18(3):153–159. doi: 10.1016/j.jsps.2010.05.001

Table 2.

Intra- and inter-day precision for salmeterol xinafoate and fluticasone propionate.

Compound	Amount (ng band⁻¹)	Intra-day precision (n = 5)			Inter-day precision (n = 5)
		Mean peak area	SD	CV^a	Mean peak area	SD	CV^a
Salmeterol xinafoate	300	1874.5	16.7	0.9	1800	69.6	3.9
	400	2566.0	65.9	2.6	2517.7	42.7	1.7
	500	3384.9	96.9	2.9	3317.3	58.6	1.7
	600	3925.0	99.5	2.5	3819.1	98.3	2.6
	700	4483.5	167.3	3.7	4427.4	55.2	1.2

Fluticasone propionate	600	4631.7	102.5	2.2	4619.9	79.6	1.7
	800	5811.7	87.6	1.5	5781.9	65.1	1.1
	1000	7140.4	94	1.3	7065.7	106.7	1.5
	1200	8048.9	124.5	1.5	7853.5	172.3	2.0
	1400	9075.8	136.4	1.5	8882.9	176.6	1.9

Coefficient of variation.