Table 2.

Low-mass ToF-SIMS peaks which generally distinguished unextracted from extracted lignocellulose samples

Unextracted			Extracted
Mass	Ion(s)	Component(s)	Mass	Ion(s)	Component(s)
43	C3H7, C2H3O	L, PS	29	CHO, C2H5	PS, L
55	C4H7, C3H3O	L, PS	31	CH3O	PS
67	C5H7	L*	45	C2H5O	PS
71	C3H3O2	PS*	47	CH3O2	PS*
79	C6H7	L*	51	C4H3	L*
81	C6H9, C5H5O	L, PS*	59	C2H3O2	PS
91	C7H7	L*	61	C2H5O2	PS*
93	C7H9	L*	63	C5H3	L*
95	C7H11	L	65	C5H5	L*
105	C8H9	L*	69	C4H5O, C5H9	PS, L
107	C8H11, C7H7O	L*	73	C3H5O2	PS
121	C7H5O2, C8H9O	L*	85	C4H5O2	PS
128	C6H8O3	L*	97	C5H5O2	PS*
145	C6H9O4	PS*	99	C5H7O2	PS*
			113	C5H5O3	PS*
			127	C6H7O3	PS*
			137	C8H9O2	L*
			151	C8H7O3	L*

Lignin (L) and polysaccharide (PS) designations are from previous publications [1,18]. Those peaks also considered to be free from protein peak interferences are starred* [1].