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Clinica Chimica Acta; International Journal of Clinical Chemistry|September 3, 2017
Improved sensitivity of serum/plasma 1α,25-dihydroxyvitamin D quantification by DAPTAD derivatizationTakayuki Ishige, Mamoru Satoh, Shoujiro Ogawa, et al.Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry|December 26, 2018
Changes in Polyamine Content in Rice Bran due to Fermentation with Aspergillus oryzae Analyzed by LC/ESI-MS/MS Combined with DerivatizationYukiko Horie, Ayaka Goto, Sumi Tsubuku, et al.Chemosphere|September 13, 2008
Separation, synthesis and estrogenic activity of 4-nonylphenols: two sets of new diastereomeric isomers in a commercial mixtureMitsuko Makino, Taketo Uchiyama, Hiroaki Saito, et al.Chemical & Pharmaceutical Bulletin|August 6, 2010
Chemical synthesis of (22E)-3alpha,6alpha,7alpha,12alpha-Tetrahydroxy-5beta-chol-22-en-24-oic acid and its N-acylamidated conjugates with glycine or taurine: precursors of the [22,23-(3)H] labelled tracersShoujiro Ogawa, Yuuki Adachi, Genta Kakiyama, et al.Lipids|January 27, 2005
Biomimetic oxidation of unactivated carbons in steroids by a model of cytochrome P-450, oxorutheniumporphyrinate complexTakashi Lida, Shoujiro Ogawa, Shouhei Miyata, et al.Journal of Natural Medicines|April 12, 2008
Lupane triterpenes with a carbonyl group at C-20 induce cancer cell apoptosisKeishi Hata, Shoujiro Ogawa, Mitsuko Makino, et al.Journal of Separation Science|September 25, 2012
Derivatization of chiral carboxylic acids with (S)-anabasine for increasing detectability and enantiomeric separation in LC/ESI-MS/MSTatsuya Higashi, Megumi Kawasaki, Hiroaki Tadokoro, et al.Biomedical Chromatography : BMC|November 12, 2020
Derivatization-based quadruplex LC/ESI-MS/MS method for high throughput quantification of serum dehydroepiandrosterone sulfateSaki Aso, Shoujiro Ogawa, Shoichi Nishimoto-Kusunose, et al.Mass Spectrometry (Tokyo, Japan)|September 23, 2016
A Method for Simultaneous Determination of 25-Hydroxyvitamin D3 and Its 3-Sulfate in Newborn Plasma by LC/ESI-MS/MS after Derivatization with a Proton-Affinitive Cookson-Type ReagentTatsuya Higashi, Mai Yokota, Ayaka Goto, et al.Journal of Pharmaceutical and Biomedical Analysis|January 13, 2017
Enhancing analysis throughput, sensitivity and specificity in LC/ESI-MS/MS assay of plasma 25-hydroxyvitamin D3 by derivatization with triplex 4-(4-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) isotopologuesShoujiro Ogawa, Hiroki Kittaka, Akiho Nakata, et al.Pageof 7