Acetic acid improves the sensitivity of theophylline analysis by gas chromatography-mass spectrometry

Kanju Saka1, Koichi Uemura, Kaori Shintani-Ishida

  • 1Department of Forensic Medicine, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. kanju@m.u-tokyo.ac.jp