Table 6: Calculation of measurement uncertainty.

SampleGOS content (g/100 g)aRSD (iR) (%)Recovery (%) (%)b (%)c (%)d

GOS-1A43.52.7117f7.37.816
GOS-1B43.72.7120f9.49.820
GOS-239.43.01001.63.46.8
GOS-3A42.42.5110f4.85.411
GOS-3B54.12.1105f2.73.46.8
GOS-426.01.890.7f6.46.713
GOS-566.10.784.2f9.99.920
GOS-643.11.496.41.82.34.6
Spiked formula2.632.0102f0.692.14.2
Lactogen 22.392.092.3f4.95.311
Lactogen 2e2.583.597.71.23.77.4

Median GOS content as measured.   : the relative standard deviation of the recovery, corrected if the recovery is not 100% and calculated as follows:
  then, .
: relative measurement uncertainty expressed in % and calculated as follows:
.    
U: expanded relative measurement uncertainty expressed as % and calculated as .
Results for this sample obtained using the HPAEC-PAD profiling method. Recovery is significantly different from 100%.