Isolation and Structural Elucidation of Cyclopentynafil and N-Octylnortadalafil Found in a Dietary Supplement
Hasegawa, Takashi, Takahashi, Kazunaga, Saijo, Masaaki, Ishii, Toshiyasu, Nagata, Tomoko, Kurihara, Masaaki, Haishima, Yuji, Goda, Yukihiro, Kawahara, Nobuo
Published in Chemical & Pharmaceutical Bulletin (01.02.2009)
Published in Chemical & Pharmaceutical Bulletin (01.02.2009)
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Journal Article
Enantiomeric Determination of DOPA in Dietary Supplements Containing Mucuna pruriens by Liquid Chromatography/Mass Spectrometry
HASEGAWA, Takashi, TAKAHASHI, Kazunaga, FUKIWAKE, Tomohide, SAIJO, Masaaki, MOTOKI, Yuji
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (25.10.2013)
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (25.10.2013)
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Journal Article
Structural Elucidation of a Tadalafil Analogue Found in a Dietary Supplement
HASEGAWA, Takashi, SAIJO, Masaaki, ISHII, Toshiyasu, NAGATA, Tomoko, HAISHIMA, Yuji, KAWAHARA, Nobuo, GODA, Yukihiro
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (30.08.2008)
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (30.08.2008)
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Journal Article
Simultaneous Determination of Statins in Dietary Supplements by Ultra-Performance Liquid Chromatography
FUKIWAKE, Tomohide, HASEGAWA, Takashi, TAKAHASHI, Kazunaga, SAIJO, Masaaki, HAMANA, Masanori
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (2014)
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (2014)
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Journal Article
健康食品中から検出されたタダラフィル類縁物質の構造解析
長谷川, 貴志, 西條, 雅明, 石井, 俊靖, 永田, 知子, 配島, 由二, 川原, 信夫, 合田, 幸広
Published in Shokuhin eiseigaku zasshi (2008)
Published in Shokuhin eiseigaku zasshi (2008)
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Journal Article
Current Situation and Issues for Analyzing Illegal Drug Products
Hasegawa, Takashi, Takahashi, Kazunaga, Saijo, Masaaki, Fukiwake, Tomohide, Motoki, Yuji
Published in YAKUGAKU ZASSHI (01.01.2013)
Published in YAKUGAKU ZASSHI (01.01.2013)
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Journal Article
Structural elucidation of a tadalafil analogue found in a dietary supplement
Hasegawa, T.(Chiba-ken. Inst. of Public Health (Japan)), Saijo, M, Ishii, T, Nagata, T, Haishima, Y, Kawahara, N, Goda, Y
Published in Shokuhin eiseigaku zasshi (01.08.2008)
Published in Shokuhin eiseigaku zasshi (01.08.2008)
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Journal Article
Rapid determination of theophylline, theobromine and caffeine in dietary supplements containing guarana by ultra-performance liquid chromatography
Hasegawa, T., Chiba-ken. Inst. of Public Health (Japan), Takahashi, K, Saijo, M, Ishii, T, Nagata, T
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (01.12.2009)
Published in Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) (01.12.2009)
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