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. 2022 Apr 14;13:815828. doi: 10.3389/fimmu.2022.815828

Figure 2.

Figure 2

Metal isotopes utilized in mass cytometry. (A) Periodic table summarizing the elements currently available for mass cytometry experiments. Grey, possible contaminating elements; green, elements used to indicate DNA content or cell size; purple, elements available for antibody conjugations; blue, elements available as probes and tracers; orange, elements not yet explored for mass cytometry but of potential future interest. Pink font; isotopes included in QE4 calibration beads. (B) Certain isotopes work well for the use in sample 1 barcoding. Shown is an example of palladium barcoding using 6 isotopes in unique combinations of 3. This strategy generates 20 separate barcodes, allowing 20 individual samples to be combined into 1 single tube.