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. 2019 Nov 18;116(49):24440–24445. doi: 10.1073/pnas.1907169116

Fig. 2.

Fig. 2.

GC/MS identification of pentoses in meteorites and reference standards. (A) Total ion chromatogram and selected ion chromatograms of NWA 801 extract. (B) Mass fragment spectrum of ribose in NWA 801. (C) Total ion chromatogram and selected ion chromatograms of the reference standard mixture. (D) Mass fragment spectrum of ribose in the reference standard. (E) Total ion chromatogram and selected ion chromatograms of the Murchison extract. (F) Total ion chromatogram and selected ion chromatograms of the reference standard mixture. (G) Mass fragment spectrum of ribose in the Murchison. (H) Mass fragment spectrum of ribose in the reference standard.