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. 2023 Jul 22;60:2023017. doi: 10.2141/jpsa.2023017

Table 2.   MS/MS conditions during MRM transition for the analyzed compound.

Compound name Polarity Precursor ion Product ion Dwell time Collision energy
(m/z) (m/z) (ms) (V)
Nτ-Methylhistidine + 170.20 124.10 100 −17.0
Nτ-Methyl-d3-histidine + 173.20 127.10 100 −14.0
Nπ-Methylhistidine + 170.20 96.00 100 −19.0