Table 5: Linear retention index matching for LABs in selected core sediment sections (elected site - Bao Shan, core B2).

LAB Ions, m/z Iobsa ILeeb ILeec
1,3,5-trimethyl 91, 105, 120 735 n/a n/a
1-butyl heptyl 91, 147, 175, 232 1627 281 278.6
1-pentyl heptyl 91, 105, 246 1719 295 293
1-butyl octyl 91, 105, 246 1724 296 293
1-ethyl decyl 91, 105, 246 1758 300 298.6
Aromatic 91, 179, 246 1761 301 n/a
1-methyl undecyl 105, 246 1798 307 304.5
1-hexyl heptyl 91, 260 1820 310 308.3
1-pentyl octyl 91, 260 1822 310 308.5
1-butyl nonyl 91, 147, 260 1826 312 309.5
di-isopropyl phenyl (isomer) 223, 238 1890 321 321.2
di-isopropyl phenyl (isomer) 223, 238 1920 326 326.7
4-phenyl bicyclo hexyl 91, 117, 159, 173, 242 1965 333 n/a

an-alkane RI; bLee calculated in this work; cLee literature values, reference [14].