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Analytical and Bioanalytical Chemistry|July 21, 2007
Pipette tip solid-phase extraction and gas chromatography - mass spectrometry for the determination of methamphetamine and amphetamine in human whole bloodChika Hasegawa, Takeshi Kumazawa, Xiao-Pen Lee, et al.Rapid Communications in Mass Spectrometry : RCM|January 19, 2006
Simultaneous determination of ten antihistamine drugs in human plasma using pipette tip solid-phase extraction and gas chromatography/mass spectrometryChika Hasegawa, Takeshi Kumazawa, Xiao-Pen Lee, et al.Journal of AOAC International|February 11, 2009
Simultaneous determination of some phenothiazine derivatives in human blood by headspace solid-phase microextraction and gas chromatography with nitrogen-phosphorus detectionNatsuko Shinmen, Xiao-Pen Lee, Takeshi Kumazawa, et al.Journal of Separation Science|January 25, 2012
Molecularly imprinted solid-phase extraction for the selective determination of methamphetamine, amphetamine, and methylenedioxyphenylalkylamine designer drugs in human whole blood by gas chromatography-mass spectrometryTakeshi Kumazawa, Chika Hasegawa, Kenji Hara, et al.Legal Medicine (Tokyo, Japan)|January 14, 2017
Rapid and highly sensitive analysis of benzodiazepines and tandospirone in human plasma by automated on-line column-switching UFLC-MS/MSXiao-Pen Lee, Yukiko Shouji, Takeshi Kumazawa, et al.Journal of Mass Spectrometry : JMS|October 7, 2004
Determination of paraquat and diquat in human body fluids by high-performance liquid chromatography/tandem mass spectrometryXiao-Pen Lee, Takeshi Kumazawa, Masaya Fujishiro, et al.Talanta|October 31, 2008
Pipette tip solid-phase extraction and gas chromatography-mass spectrometry for the determination of mequitazine in human plasmaTakeshi Kumazawa, Chika Hasegawa, Xiao-Pen Lee, et al.Journal of Pharmaceutical and Biomedical Analysis|December 28, 2005
Simple method for determination of triazolam in human plasma by high-performance liquid chromatography/tandem mass spectrometryXiao-Pen Lee, Takeshi Kumazawa, Masaya Fujishiro, et al.Journal of Pharmaceutical and Biomedical Analysis|September 17, 2013
High-throughput determination of nonsteroidal anti-inflammatory drugs in human plasma by HILIC-MS/MSTetsuya Nemoto, Xiao-Pen Lee, Takeshi Kumazawa, et al.Hemodialysis International. International Symposium on Home Hemodialysis|July 23, 2019
Elimination of intravenous alendronate by hemodialysis: A kinetic studyKen Iseri, Makoto Watanabe, Xiao-Pen Lee, et al.Pageof 3