CHROMATOGRAPHY
Vol. 46 No. 2 (June 2025) (J-STAGE)
Original:
Simultaneous and Selective Quantification of Polycarboxylic Acids in Fruits and Fruit Juices by Combining Triphenylpyridinium Derivatization and Weak Cation Exchange with Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry
Shimba Kawasue, Yohei Sakaguchi, Kento Sonogi, Takahisa Shigematsu, Nao Ando, Reiko Koga, Hitoshi Nohta, Hideyuki Yoshida
47
Original:
Retention and Selectivity Differences due to Molecular Structure of Phenyl-Type Reversed-Phase HPLC Columns
Ashin Taniguchi, Tsunehisa Hirose, Motoshi Shimotsuma
55
Original:
Retention Behavior of Aromatic Compounds on a Poly(butylene terephthalate) Stationary Phase: Effect of Mobile Phase Composition
Koki Nakagami, Mai Hamada, Tomoki Aya, Ikuo Ueta, Yoshihiro Saito
63
Short Communications:
Sensitive Fluorescence Determination of Tryptophan Enantiomers Derivatized with 4-Fluoro-7-nitro-2,1,3-benzoxadiazole Using a Photo-Reactor
Chiharu Ishii, Manae Yamashita, Eiichi Negishi, Hiroshi Imoto, Masashi Mita, Takeyuki Akita, Kenji Hamase
71
Short Communications:
Functional Polytetrafluoroethylene Membrane-Assisted Purge and Trap Detection of Residual Solvents in Pharmaceutical Formulations Using a Needle-Type Extraction Device
Ikuo Ueta, Suguru Masuda, Daisuke Kondo, Ryosuke Kikuchi, Koki Nakagami, Yoshihiro Saito
77
Short Communications:
Microchip Electrophoretic Analyses of Cationic Analytes Using Large-Volume Dual Preconcentration by Isotachophoresis and Stacking (LDIS) - Field-Amplified Sample Injection (FASI) in Y-Form Channels
Fumihiko Kitagawa, Koyo Aoki, Takayuki Kawai
83
Short Communications:
Quantitation of Nine Scopoletin Analogues Using an HPLC-Fluorescence Method and Its Application to Morinda Citrifolia (Noni) Products
Mitsuhiro Wada, Masahiro Asoh, Makoto Takada, Kanta Noguchi, Toshiaki Nishigaki, Junpei Mutoh
89
Short Communications:
Chromatographic Determination of Oxytocin via UV Irradiation-Induced Luminol Chemiluminescence of Its Tyrosine Residue
Naoya Kishikawa, Hiroshi Ajiki, Mahmoud Ei-Maghrabey, Naotaka Kuroda
95
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