Determination of β-Galactooligosaccharides by Liquid Chromatography

Table 5

Precision of GOS analysis in infant formula.

Sample	GOS concentration (g/100 g)		RSD (𝑟) (%)		RSD (iR) (%)
	Median	Mean	Robust	Classical	Robust	Classical
Lactogen 1^a	2.70	2.69	0.8	0.9	1.1	1.2
Lactogen 2^a	2.39	2.39	0.4	0.6	2.0	1.9
Lactogen 2^b	2.58	2.58	2.4	2.0	3.5	2.7

aSamples analysed by HPLC-FLD method, 𝑛=2×8. bSamples analysed by HPAEC-PAD profiling method 𝑛=2×9.