Miniaturized hollow fiber assisted liquid-phase microextraction with in situ derivatization and gas chromatography-mass spectrometry for analysis of bisphenol A in human urine sampleKAWAGUCHI, Migaku; ITO, Rie; OKANOUCHI, Noriya et al.Journal of chromatography. B. 2008, Vol 870, Num 1, pp 98-102, issn 1570-0232, 5 p.Article

Novel stir bar sorptive extraction methods for environmental and biomedical analysisKAWAGUCHI, Migaku; ITO, Rie; SAITO, Koichi et al.Journal of pharmaceutical and biomedical analysis. 2006, Vol 40, Num 3, pp 500-508, issn 0731-7085, 9 p.Article

New approaches for analysis of metabolism compounds in hydrophilic interaction chromatographyIWASAKI, Yusuke; ISHII, Yuji; ITO, Rie et al.Journal of liquid chromatography & related technologies. 2007, Vol 30, Num 13-16, pp 2117-2126, issn 1082-6076, 10 p.Article

Development of Quality Assessment Method for Optically Active Food Flavor ChemicalsSAITO, Koichi; HOSONO, Kouhei; KITAZAWA, Nariko et al.Journal of AOAC International. 2011, Vol 94, Num 3, pp 923-930, issn 1060-3271, 8 p.Article

Stir bar sorptive extraction and thermal desorption-gas chromatography-mass spectrometry for trace analysis of triclosan in water sampleKAWAGUCHI, Migaku; ITO, Rie; HONDA, Hidehiro et al.Journal of chromatography. 2008, Vol 1206, Num 2, pp 196-199, issn 0021-9673, 4 p.Article

Development of quantitative analysis of 8-nitroguanine concomitant with 8-hydroxydeoxyguanosine formation by liquid chromatography with mass spectrometry and glyoxal derivatizationISHII, Yuji; OGARA, Atsushi; OKAMURA, Toshiya et al.Journal of pharmaceutical and biomedical analysis. 2007, Vol 43, Num 5, pp 1737-1743, issn 0731-7085, 7 p.Article

Stir bar sorptive extraction with in situ de-conjugation and thermal desorption gas chromatography-mass spectrometry for measurement of 4-nonylphenol glucuronide in human urine sampleKAWAGUCHI, Migaku; ITO, Rie; NAKAZAWA, Hiroyuki et al.Journal of pharmaceutical and biomedical analysis. 2006, Vol 40, Num 1, pp 82-87, issn 0731-7085, 6 p.Article

Systematic analysis and overall toxicity evaluation of dioxins and hexachlorobenzene in human milkSAITO, Koichi; OGAWA, Masahiko; TAKEKUMA, Mikiko et al.Chemosphere (Oxford). 2005, Vol 61, Num 9, pp 1215-1220, issn 0045-6535, 6 p.Article

Quality-Control Culture System Restores Diabetic Endothelial Progenitor Cell Vasculogenesis and Accelerates Wound ClosureTANAKA, Rica; VAYNRUB, Max; MASUDA, Haruchika et al.Diabetes (New York, NY). 2013, Vol 62, Num 9, pp 3207-3217, issn 0012-1797, 11 p.Article

Quantitative analysis of perfluorinated chemicals in media for in vitro fertilization and related samplesIWASAKI, Yusuke; TERAYAMA, Emi; KATO, Azusa et al.Chemosphere (Oxford). 2012, Vol 88, Num 4, pp 445-449, issn 0045-6535, 5 p.Article

Hollow-fiber-supported liquid phase microextraction with in situ derivatization and gas chromatography-mass spectrometry for determination of chlorophenols in human urine samplesITO, Rie; KAWAGUCHI, Migaku; HONDA, Hidehiro et al.Journal of chromatography. B. 2008, Vol 872, Num 1-2, pp 63-67, issn 1570-0232, 5 p.Article

Determination of urinary triclosan by stir bar sorptive extraction and thermal desorption-gas chromatography-mass spectrometryKAWAGUCHI, Migaku; ITO, Rie; HONDA, Hidehiro et al.Journal of chromatography. B. 2008, Vol 875, Num 2, pp 577-580, issn 1570-0232, 4 p.Article

Dual derivatization-stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry for determination of 17β-estradiol in water sampleKAWAGUCHI, Migaku; ITO, Rie; SAKUI, Norihiro et al.Journal of chromatography. 2006, Vol 1105, Num 1-2, pp 140-147, issn 0021-9673, 8 p.Conference Paper

Determination of 4-tert.-octylphenol and 4-nonylphenol in laboratory animal feed sample by stir bar sorptive extraction followed by liquid desorption and column-switching liquid chromatography-mass spectrometry with solid-phase extractionKAWAGUCHI, Migaku; TAKAHASHI, Shima; NAKAZAWA, Hiroyuki et al.Journal of chromatography. 2004, Vol 1046, Num 1-2, pp 83-88, issn 0021-9673, 6 p.Article

Determination of Proline Enantiomers in Honey and Royal Jelly by LC-UVSAITO, Koichi; KOHAMA, Jun; SAKAMOTO, Yasuhiro et al.Journal of AOAC International. 2011, Vol 94, Num 2, pp 482-486, issn 1060-3271, 5 p.Article

Mercury speciation and analysis in drinking water by stir bar sorptive extraction with in situ propyl derivatization and thermal desorption-gas chromatography-mass spectrometryITO, Rie; KAWAGUCHI, Migaku; SAKUI, Norihiro et al.Journal of chromatography. 2008, Vol 1209, Num 1-2, pp 267-270, issn 0021-9673, 4 p.Article

Stir-bar-sorptive extraction, with in-situ deconjugation, and thermal desorption with in-tube silylation, followed by gas chromatography-mass spectrometry for measurement of urinary 4-nonylphenol and 4-tern-octylphenol glucuronidesKAWAGUCHI, Migaku; ITO, Rie; SAKUI, Norihiro et al.Analytical and bioanalytical chemistry. 2007, Vol 388, Num 2, pp 391-398, 8 p.Article

Reducing the migration of di-2-ethylhexyl phthalate from polyvinyl chloride medical devicesITO, Rie; SESHIMO, Fumie; SAITO, Koichi et al.International journal of pharmaceutics. 2005, Vol 303, Num 1-2, pp 104-112, issn 0378-5173, 9 p.Article

A study on the change of enantiomeric purity of catechins in green tea infusionITO, Rie; YAMAMOTO, Atsushi; KODAMA, Shuji et al.Food chemistry. 2003, Vol 83, Num 4, pp 563-568, issn 0308-8146, 6 p.Article

A new strategy for ionization enhancement by derivatization for mass spectrometryIWASAKI, Yusuke; NAKANO, Yuki; MOCHIZUKI, Keisuke et al.Journal of chromatography. B. 2011, Vol 879, Num 17-18, pp 1159-1165, issn 1570-0232, 7 p.Article

Stir bar sorptive extraction with in situ derivatization and thermal desorption-gas chromatography-mass spectrometry for trace analysis of methylmercury and mercury(II) in water sampleITO, Rie; KAWAGUCHI, Migaku; SAKUI, Norihiro et al.Talanta (Oxford). 2009, Vol 77, Num 4, pp 1295-1298, issn 0039-9140, 4 p.Article

Simultaneous Determination of Di(2-ethylhexyl)phthalate, Mono(2-ethylhexyl)phthalate, and Phthalic Acid Migrating from Gamma-Ray Irradiated Polyvinyl Chloride Sheet by Liquid Chromatography-Tandem Mass SpectrometryITO, Rie; MIURA, Naoko; KAWAGUCHI, Migaku et al.Journal of liquid chromatography & related technologies. 2008, Vol 31, Num 1-4, pp 198-209, issn 1082-6076, 12 p.Article

Liquid phase microextraction with in situ derivatization for measurement of bisphenol A in river water sample by gas chromatography-mass spectrometryKAWAGUCHI, Migaku; ITO, Rie; ENDO, Naoyuki et al.Journal of chromatography. 2006, Vol 1110, Num 1-2, pp 1-5, issn 0021-9673, 5 p.Article

Molecularly imprinted solid phase extraction using stable isotope labeled compounds as template and liquid chromatography-mass spectrometry for trace analysis of bisphenol A in water sampleKAWAGUCHI, Migaku; HAYATSU, Yoshio; NAKATA, Hisao et al.Analytica chimica acta. 2005, Vol 539, Num 1-2, pp 83-89, issn 0003-2670, 7 p.Article

Determination of 4-nonylphenol and 4-Tert.-octylphenol in water samples by stir bar sorptive extraction and thermal desorption-gas chromatography-mass spectrometryKAWAGUCHI, Migaku; INOUE, Koichi; YOSHIMURA, Mariko et al.Analytica chimica acta. 2004, Vol 505, Num 2, pp 217-222, issn 0003-2670, 6 p.Article