Review Team (February 2016).pdf

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Fonterra Co-operative Group
Page 16
Figure 9: Product ion scan of vitamin D2-PTAD standard; [M+H]+ = 572.2 m/z
Figure 10: Product ion scan of vitamin D3-PTAD standard; [M+H] + = 560.2 m/z
Pre-Vitamin D
The separate measurement of pre-vitamin D was explored as part of initial method proof of concept [6]. It
was decided that a separate measurement of pre-vitamin D in this method was not needed. As discussed,
there are a number of practical reasons for not including a separate measurement of pre-vitamin D: (1) the
VitD-18 (February 2016)
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