Determination of β-Galactooligosaccharides by Liquid Chromatography

Table 3

Precision of GOS analyses in ingredients using both robust and classical statistics.

Sample	GOS concentration (g/100 g)		RSD (𝑟) (%)		RSD (iR) (%)
	Median	Mean	Robust	Classical	Robust	Classical
GOS-1A	43.5	43.5	0.7	1.0	2.7	3.7
GOS-1B	43.7	43.5	0.4	0.9	2.7	2.4
GOS-2	39.4	39.7	0.9	1.0	3.0	2.8
GOS-3A	42.4	42.3	1.1	0.9	2.5	1.7
GOS-3B	54.1	54.1	1.2	0.9	2.1	1.6
GOS-4	26.0	26.0	2.0	1.8	1.8	1.5
GOS-5	66.1	66.6	0.6	0.7	0.7	2.6
GOS-6	43.1	43.1	0.7	0.6	1.4	1.1