Figure 4From: X-ray absorption near edge structure spectroscopic study of Hayabusa category 3 carbonaceous particlesThe coordinated oxygen and fluorine K edge-XANES spectrum of RB-QD04-0047-02 (RB). A peak at 531 eV corresponds to the ketone group (C = O). No fluorine-containing molecular species were detected in the range of 650 to 700 eV.Back to article page