S.No. Species detected Mol.
Formula
Calcdm/z
[M + Na]+
Exptlm/z
[M + Na]+
1 A C9H12O2 175.0730 175.1133
2 B C9H12O4 185.0808* 185.1238*
3 C C9H10O3 189.0312 189.0323
4 D C10H12O3 203.0679 203.0505
5 E C10H12O3 203.0679 203.0505
6 F C11H14O4 211.0965* 211.0320*
7 G C11H16O3 219.0992 219.0439
8 H C10H12O4 219.0992 219.0439
9 I C12H10O4 241.0471 241.0245
10 J C12H10O7 267.0499* 267.0909*
11 K C11H16O6 267.0839 267.0909
12 L C17H20O4 289.1434* 289.1739*
13 M C16H18O4 297.1097 297.1039
14 N C18H22O5 319.1540* 319.2211*
15 O C20H22O4 327.1591* 327.1185*
16 P C19H22O4 337.1410 337.1771
17 Q C19H20O5 351.1567 351.1912
18 R C20H26O6 385.1622 385.1602
19 S C21H26O6 397.1622 397.2298
20 T C22H30O7 429.1884 429.0588
21 U C17H19O5SO3Na 487.1009 487.0940
*[M+H]+
Table 1: The species detected in mass spectra of depolymerized lignin.