Figure 6: Mass spectra of fixed emu blood, erythrocyte-like structures present in NHMUK R12562 and cement surrounding these erythrocyte-like structures, all prepared by FIB.
From: Fibres and cellular structures preserved in 75-million–year-old dinosaur specimens
(a) Mass spectrum of emu blood with inset detailed region between 460 and 475 m/z. (b) Mass spectrum of erythrocyte-like structures present in NHMUK R12562, with inset detailed region between 460 and 475 m/z. (c) Mass spectrum of cement surrounding the erythrocyte-like structures, with inset detailed region between 460 and 475 m/z. Blue arrows indicate the regions of main peaks in each spectrum that are present only in the mass spectra of fixed emu blood and erythrocyte-like structures. Red arrows indicate the regions of main peaks in each spectrum that are present only in the mass spectra of erythrocyte-like structures and cement surrounding erythrocyte-like structures.
