@article{CTT100644454,
  author = {Chen Wu and Keita Yamada and Osamu Sumikawa and Akiko Matsunaga and Alexis Gilbert and Naohiro Yoshida},
  title = {Development of a methodology using gas chromatography-combustion-isotope ratio mass spectrometry for the determination of the carbon isotope ratio of caffeine extracted from tea leaves (Camellia sinensis)},
  journal = {Rapid Communications in Mass Spectrometry},
  year = 2012,
}

@inproceedings{CTT100660809,
  author = {Wu Chen and 山田桂太 and 角川 修 and 松永明子 and Tarin Nimmanwudipong and Alexis Gilbert and 吉田尚弘},
  title = {茶葉中カフェインの安定同位体炭素と窒素の解析手法の開発},
  booktitle = {2013年日本地球化学会第60回年会講演要旨集},
  year = 2013,
}

@inproceedings{CTT100786730,
  author = {Chen Wu and Keita Yamada and Osamu Sumikawa and Akiko Matsunaga and Alexis Gilbert and Naohiro Yoshida},
  title = {Factors controlling the carbon isotopic variation of caffeine},
  booktitle = {},
  year = 2012,
}

@inproceedings{CTT100787245,
  author = {Naohiro Yoshida and Sakae Toyoda and Azzaya Tumendelger and Yuuri Suzuki and Keita Yamada and Shohei Hattori and Chen Wu and Hiroshi Shiom and Rina Kouno},
  title = {Nitrous oxide and methane isotopomer analysis in wastewater treatment system in order to reduce their emissions without reduction of water quality},
  booktitle = {},
  year = 2011,
}

@inproceedings{CTT100793832,
  author = {Wu Chen and Keita Yamada and Osamu Sumikawa and Yuichi Yamaguchi and Naohiro Yoshida},
  title = {Authenticity of origins of tea leaves by stable isotopic signature: Preliminary results},
  booktitle = {},
  year = 2010,
}

@inproceedings{CTT100590273,
  author = {Wu Chen and Keita Yamada and Sakae Toyoda and Naohiro Yoshida and Rina Kono and Koki Murayama},
  title = {Investigation of methane emission during sewage water treatment in Japan through carbon isotope ratio},
  booktitle = {日本地球化学会2009年会講演要旨集},
  year = 2009,
}