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Selected transitions from precursor ions to product ions for quantification.
| PTAD derivatives | Precursor ion (m/z)a | Product ion (m/z) |
|---|---|---|
| 1α,25(OH)2D3 | 574.4 | 314.1 |
| 4β,25(OH)2D3 | 574.4 | 314.1 |
| 24R,25(OH)2D3 | 574.4 | 298.1 |
| 25OHD3 | 558.1 | 298.1 |
| d6-1α,25(OH)2D3 | 580.4 | 314.1 |
| d6-25OHD3 | 564.1 | 298.1 |
[M-H2O+H]+
