Table 1. Library of isotope-tagged antibodies for cell labeling in TOF-SIMS.

Number	Mass	Label	Description
1	141	Pr	SMA
2	143	Nd	Vimentin
3	148	Nd	PanKeratin
4	149	Sm	H3K9me3
5	150	Nd	PDL1
6	155	Gd	Foxp3
7	156	Gd	CD4
8	158	Gd	E-cadherin
9	159	Tb	CD68
10	161	Dy	CD20
11	162	Dy	CD8A
12	165	Ho	PD1
13	167	Er	Granzyme B
14	168	Er	Ki-67
15	169	TM	Collagen I
16	170	Er	CD3
17	171	Yb	Histone 3
18	173	Yb	CD45RO
19	191	Ir	Intercalator (DNA)
20	193	Ir	Intercalator (DNA)