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. 2023 May 25;138(1):123–137. doi: 10.1007/s00414-023-03021-1

Table 2.

Proper elements recovered in the graphite control samples on the left; contaminants, recovered in the samples but not in the control, on the right

PROPER ELEMENTS CONTAMINANTS
morphological elements value chemical elements value morphological elements value chemical elements value
Fe 4 fiber (hair) 3 Fe 2
synthetic fibers 4 Ca 2 fiber 0 Ca 4
dark fragment 0 P 5
round particles single or aggregates 5 Mg 4 pink fragment/light blue fragment 4 Mg 2
chips 5 Si 2 metal fragment 4 Si 4
metal chips 5 metal chips 5 Ti 5
organic material 3 Cu 5 organic material 2 Cu 4
wood chips 5 leaf fragment 4 Zn 3
plant stems 4 plant stem 4 Pb 5
botanical elements 4 K 4 botanical element 4 K 3
pollen/spore 5 spore 5 Ni 5
diatom 5 Al 3 fungal hyphae 5 Al 4
algae 5 bacteria 5 Ba 4
soil 4 S 4 soil 3 S 5
synthetic material 5 resin or glue 5 Sn 5
aggregates and single particles 1 Na 3 aggregates and single particles 2 Na 4
aggregates and single grey particles 5 Cr 4 Cr 5
Au 4
Cl 3