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. 2024 Feb 16;31(13):19649–19657. doi: 10.1007/s11356-024-32379-x

Table 1.

Data of four APIs and tentatively identified metabolites. If no CCS values are provided, the ion abundance was too low for accurate CCS determination

Name Formula RT [min] m/z [M + H]+ calc m/z [M + H]+ meas Error [ppm] CCS (Å2) MS/MS fragments [m/z] confirmation criteria level a
Amitriptyline
AMT C20H23N 13.7 278.1903 278.1909 2.2 167.6 233.13, 191.09, 91.05 1
AMT-OH C20H23NO 10.0 294.1852 294.1851 -0.3 168.6 276.17, 231.12, 191.09 3
NTP C19H21N 16.6 264.1747 264.1753 2.3 165.8 233.13, 219.17, 91.05 3
NTP-OH C19H21NO 9.8 280.1696 280.1698 0.7 166.5 262.16, 231.12 3
DMN C18H19N 13.4 250.159 250.1595 2.0 165.1 233.13, 191.09, 91.05 3
AMT-Glc C26H33NO5 12.5 440.2431 440.2438 1.6 201.5 278.19, 233.13 3
AMT-OH-Glc C26H33NO6 8.9 456.2381 456.2386 1.1 205.1 294.18, 276.17 3
Lidocaine
LDO C14H22N2O 6.0 235.1805 235.1809 1.7 156.6 86.10 1
LDO-OH C14H22N2O2 3.1 251.1754 251.1751 -1.2 * 86.10 3
MEGX C12H18N2O 4.7 207.1492 207.1486 -2.9 * 58.07 3
Orphenadrine
ORP C18H23NO 13.0 270.1852 270.1856 1.5 166.4 181.10, 166.08 1
ORP-Glc C24H33NO6 12.0 432.2381 432.2383 0.5 199.8 270.18, 181.10 3
Tramadol
TRM C16H25NO2 8.2 264.1958 264.1950 -3.0 160.7 58.07 1
ODT C15H23NO2 5.4 250.1802 250.1806 1.6 159.7 58.07 3
NDT C15H23NO2 8.4 250.1802 250.1800 -0.8 156.7 44.05 3
TRM-OH C16H25NO3 8.9 280.1907 280.1912 1.8 166.6 262.18, 58.07 3

*Concentrations too low for CCS determination

aSchymanski et al., Environ. Sci. Technol. 2014, 48, 2097 − 2098