Review Team (February 2016)

Fonterra Co-operative Group VitD-18 (February 2016) FOR ERP USE ONLY DO NOT DISTRIBUTE

-PTAD standard; [M+H] + = 572.2 m/z

Figure 9: Product ion scan of vitamin D 2

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

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