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Table 1 Summary of analyzed carbonaceous grains in Y-791198

From: The universal sample holders of microanalytical instruments of FIB, TEM, NanoSIMS, and STXM-NEXAFS for the coordinated analysis of extraterrestrial materials

Carbonaceous grain TEM observation diameter (nm) NanoSIMS analysis
δ13C (PDB) ‰ δ15N (Air) ‰ δ15D (SMOW) ‰
G1 650 289 ± 33 − 307 ± 30 1457 ± 187
G2 1000 − 117 ± 25 33 ± 55 2335 ± 154
G3 800 − 178 ± 27 302 ± 37 219 ± 112
G4 650 42 ± 21 348 ± 27 1128 ± 174
  1. Errors are 1 sigma
  2. PDB Pee Dee Belemnite, SMOW standard mean ocean water