Chika Hasegawa

发表

Simultaneous determination of methamphetamine and amphetamine in human urine using pipette tip solid-phase extraction and gas chromatography-mass spectrometry.

K. Hara, T. Kumazawa, Chika Hasegawa, 2007, Journal of pharmaceutical and biomedical analysis.

New and unique methods of solid-phase extraction for use before instrumental analysis of xenobiotics in human specimens

T. Kumazawa, Chika Hasegawa, X. Lee, 2010, Forensic Toxicology.

Simple method for determination of triazolam in human plasma by high-performance liquid chromatography/tandem mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2006, Journal of pharmaceutical and biomedical analysis.

Simple method for the determination of benzodiazepines in human body fluids by high-performance liquid chromatography–mass spectrometry

T. Kumazawa, Chika Hasegawa, X. Lee, 2003 .

Determination of diazepam and its metabolites in human urine by liquid chromatography/tandem mass spectrometry using a hydrophilic polymer column.

T. Kumazawa, Chika Hasegawa, X. Lee, 2008, Rapid communications in mass spectrometry : RCM.

Determination of dextromethorphan in human plasma using pipette tip solid-phase extraction and gas chromatography–mass spectrometry

T. Kumazawa, Chika Hasegawa, X. Lee, 2011, Analytical and bioanalytical chemistry.

Pipette tip solid-phase extraction and gas chromatography – mass spectrometry for the determination of methamphetamine and amphetamine in human whole blood

Natsuko Shinmen, T. Kumazawa, Chika Hasegawa, 2007, Analytical and bioanalytical chemistry.

High-throughput method to analyze tegafur and 5-fluorouracil in human tears and plasma using hydrophilic interaction liquid chromatography-tandem mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2019, Rapid communications in mass spectrometry : RCM.

Automated on-line in-tube solid-phase microextraction coupled with HPLC/MS/MS for the determination of butyrophenone derivatives in human plasma

T. Kumazawa, Chika Hasegawa, H. Seno, 2009, Analytical and bioanalytical chemistry.

Simultaneous determination of beta-blockers in human plasma using liquid chromatography-tandem mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2008, Biomedical chromatography : BMC.

Simultaneous determination of selegiline and desmethylselegiline in human body fluids by headspace solid-phase microextraction and gas chromatography-mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2006, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Molecularly imprinted solid-phase extraction for the selective determination of methamphetamine, amphetamine, and methylenedioxyphenylalkylamine designer drugs in human whole blood by gas chromatography-mass spectrometry.

K. Hara, T. Kumazawa, Chika Hasegawa, 2012, Journal of separation science.

High Resolution and High Precision Analysis of Barbiturates and a Metabolite in Human Body Fluids Using a Monolithic Spin Tip and UPLC-Q-ToF-MS

T. Kumazawa, Chika Hasegawa, X. Lee, 2018 .

Determination of paraquat and diquat in human body fluids by high-performance liquid chromatography/tandem mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2004, Journal of mass spectrometry : JMS.

SPIN TIP SOLID-PHASE EXTRACTION AND HILIC-MS-MS FOR QUANTITATIVE DETERMINATION OF METHAMPHETAMINE AND AMPHETAMINE IN HUMAN PLASMA

T. Kumazawa, Chika Hasegawa, X. Lee, 2014 .

Rapid and highly sensitive analysis of benzodiazepines and tandospirone in human plasma by automated on-line column-switching UFLC-MS/MS.

T. Kumazawa, Chika Hasegawa, X. Lee, 2017, Legal medicine.

A new method for high-resolution and high-precision analysis of flunitrazepam and 7-aminoflunitrazepam in human body fluids using a Monolithic SPE SpinTip and UPLC–Q-ToF–MS

T. Kumazawa, Chika Hasegawa, X. Lee, 2019, Forensic Toxicology.

Simultaneous determination of ten antihistamine drugs in human plasma using pipette tip solid-phase extraction and gas chromatography/mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2006, Rapid communications in mass spectrometry : RCM.

High-throughput determination of valproate in human samples by modified QuEChERS extraction and GC-MS/MS.

T. Kumazawa, Chika Hasegawa, X. Lee, 2018, Legal medicine.

High-throughput determination of barbiturates in human plasma using on-line column-switching ultra-fast liquid chromatography–tandem mass spectrometry

T. Kumazawa, Chika Hasegawa, X. Lee, 2012, Forensic Toxicology.

High-throughput determination of nonsteroidal anti-inflammatory drugs in human plasma by HILIC-MS/MS.

T. Kumazawa, Chika Hasegawa, X. Lee, 2014, Journal of pharmaceutical and biomedical analysis.

Determination of nonsteroidal anti-inflammatory drugs in human plasma by LC-MS-MS with a hydrophilic polymer column

T. Kumazawa, Chika Hasegawa, X. Lee, 2010, Forensic Toxicology.

Sensitive determination of midazolam and propofol in human plasma by GC–MS/MS

T. Kumazawa, Chika Hasegawa, X. Lee, 2020, Forensic Toxicology.

Fragmentation Pathways of Trifluoroacetyl Derivatives of Methamphetamine, Amphetamine, and Methylenedioxyphenylalkylamine Designer Drugs by Gas Chromatography/Mass Spectrometry

K. Hara, T. Kumazawa, Chika Hasegawa, 2011 .

A new method for quantitative determination of dimemorfan in human plasma using monolithic silica solid-phase extraction tips.

T. Kumazawa, Chika Hasegawa, X. Lee, 2012, Legal Medicine.

Quantitative determination of phenothiazine derivatives in human plasma using monolithic silica solid-phase extraction tips and gas chromatography-mass spectrometry.

T. Kumazawa, Chika Hasegawa, X. Lee, 2011, Journal of chromatography. A.

Determination of tricyclic antidepressants in human plasma using pipette tip solid-phase extraction and gas chromatography-mass spectrometry.

Natsuko Shinmen, T. Kumazawa, Chika Hasegawa, 2008, Journal of separation science.

Analysis of phenothiazines in human body fluids using disk solid-phase extraction and liquid chromatography.

T. Kumazawa, Chika Hasegawa, X. Lee, 2005, Journal of AOAC International.

Analysis of quazepam and its metabolites in human urine by gas chromatography-mass spectrometry: application to a forensic case.

T. Shinozuka, Chika Hasegawa, Y. Ohno, 2013, Forensic science international.

A simple and reliable method for quantifying plasma concentrations of tetracyclic antidepressants using monolithic silica solid-phase extraction tips

T. Kumazawa, Chika Hasegawa, X. Lee, 2012, Forensic Toxicology.

Utility of disk solid-phase extraction for whole blood samples: analysis of some tetracyclic antidepressants by gas chromatography with nitrogen-phosphorus detection

T. Kumazawa, Chika Hasegawa, X. Lee, 2008, Forensic Toxicology.

Rapid and highly sensitive analysis of benzodiazepines and tandospirone in human plasma by automated on-line column-switching UFLC-MS/MS.

T. Kumazawa, Chika Hasegawa, X. Lee, 2017, Legal medicine.