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. 2023 Sep 25;24(19):14522. doi: 10.3390/ijms241914522

Table 1.

Main UHPLC-MS/HRMS parameters.

Targeted Compound Retention Time (min) Precursor Ion (m/z) Main Fragment Ion (m/z) Collision Energy (eV)
KYN 2.75 209.09207 192.06552 16
TRP 2.86 205.09715 188.07061 10
KYNA 3.41 190.04987 162.05496 20
KYNA-D5 (IS *-1) 3.41 195.08125 167.05615 20
SZR72 2.98 260.13935 162.05496 38
SZR73 (IS *-2) 3.07 274.15500 162.05496 38

* IS—internal standard.