Table 2: GOS recovery measured in spiked infant formulae.

FormulaMethodNonspiked 
OS concentration 
(g/100 g)
Spiking level 1 
(2.6 g/100 g) 
Recovery (%)
Spiking level 2 
(5.1 g/100 g) 
Recovery (%)
Spiking level 3 
(10.3 g/100 g) 
Recovery (%)

Infant formulaHPLC-FLD0.18100.8–102.097.3–97.692.1–96.7
H.A. formulaHPLC-FLD0.3792.2–94.995.1–95.892.7–95.7
Infant formulaHPAEC-PADn/a94.6–99.3n/an/a
H.A. formulaHPEAC-PADn/an/an/an/a

H.A. formulae are hypoallergenic formulae containing partially hydrolyzed proteins. n/a: not analysed.