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© 2015 AOAC INTERNATIONAL
Figure 2015.03B. LC-MS/MS chromatograms of a powdered milk-based infant formula (lactose free) unspiked and spiked at
the 1 µg/kg (IS 10 µg/kg) level.
Enclosure 1 – LC-MS/MS chromatograms of a powdered milk-based (lactose free)
infant formula unspiked and spiked at the 1 µg/kg (IS 10 µg/kg) level
Milk Infant Formula
Lactose Free
LIMS 890000008555
Unspiked
Milk Infant Formula
Lactose Free
LIMS 890000008555
Spiked at 1 µg/kg
77 → 33
77 → 57
79 → 34 (Internal Std)
79 → 59 (Internal Std)
77 → 33
77 → 57
79 → 34 (Internal Std)
79 → 59 (Internal Std)
Figure 2015.03C. LC-MS/MS chromatograms of a liquid milk-based infant formula (ready-to-feed) unspiked and spiked at the
1 µg/kg (IS 10 µg/kg) level.
Enclosure 2 – LC-MS/MS chromatograms of a liquid milk-based infant formula (ready-
to-feed) unspiked and spiked at the 1 µg/kg (IS 10 µg/kg) level
Milk Infant Formula
Ready-to-feed (liquid)
LIMS 890000008557
Unspiked
Milk Infant Formula
Ready-to-feed (liquid)
LIMS 890000008557
Spiked at 1 µg/kg
77 → 33
77 → 57
79 → 34 (Internal Std)
79 → 59 (Internal Std)
77 → 33
77 → 57
79 → 34 (Internal Std)
79 → 59 (Internal Std)
Candidates for 2016 Method of the Year
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