posted on 2025-06-05, 12:08authored byAtom Hamasaki, Yuta Matsuo, Fumiki Takahashi, Masachika Yoshida, Kanya Kobayashi, Yuka Takeuchi, Akio Katsuki, Sumio Ozeki
Total ion chromatogram of pitch-containing components collected by immersion in acetonitrile after heat-treatment in, (a) 0 min, (b) 30 min, (c) 60 min, (d) 120 min at 353 K. (e) is raw pitch (non-heat treatment). The m/z values of 153, 178, 190, 202, 276, and 326 correspond to peak of 7.5, 9.0, 9.7, 10.8, 16.7, 19.9 min, respectively.