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. 2019 Dec 4;14(12):e0225750. doi: 10.1371/journal.pone.0225750

Table 2. Optimized quantitative parameter conditions of the three standard samples.

Compound Formula/Mass Parent m/z Cone Voltage Daughters Collision Energy Ion Mode
Adenosine 267.00 1 268.22 22.00 136.07* 18.00 ES+
2 268.22 22.00 119.09 44.00 ES+
Cordycepin 251.00 1 252.22 24.00 136.07* 16.00 ES+
2 252.22 24.00 119.09 40.00 ES+
Mannitol 182.17 1 183.14 16.00 69.03* 12.00 ES+
2 183.14 16.00 147.09 8.00 ES+

Note: The ion pairs with * in the table are the ion pairs used for quantification.