Search Results - "IKEGAMI, Tohru"

Hydrophilic interaction chromatography for the analysis of biopharmaceutical drugs and therapeutic peptides: A review based on the separation characteristics of the hydrophilic interaction chromatography phases by Ikegami, Tohru

“…Applications of hydrophilic interaction chromatography for the analysis of biopharmaceutical drugs, i.e., glycosylated proteins represented by monoclonal…”
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Separation efficiencies in hydrophilic interaction chromatography by Ikegami, Tohru, Tomomatsu, Kouki, Takubo, Hirotaka, Horie, Kanta, Tanaka, Nobuo

“…Hydrophilic interaction chromatography (HILIC) is important for the separation of highly polar substances including biologically active compounds, such as…”
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The relationship between polymer structures on silica particles and the separation characteristics of the corresponding columns for hydrophilic interaction chromatography by Taniguchi, Ashin, Tamura, Saki, Ikegami, Tohru

“…•20 Poly(acrylamide) type columns were synthesized by surface-initiated ATRP.•The new HILIC columns were characterized chromatographically.•Density of polymer…”
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Separation of carbohydrate isomers and anomers on poly-N-(1H-tetrazole-5-yl)-methacrylamide-bonded stationary phase by hydrophilic interaction chromatography as well as determination of anomer interconversion energy barriers by Fu, Xiaoqing, Cebo, Malgorzata, Ikegami, Tohru, Lämmerhofer, Michael

“…•DCpak PTZ HILIC column was evaluated for neutral carbohydrate separations.•Anomer and isomer separations of pentoses, hexoses and disaccharides.•Rate…”
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Chromatographic characterization of hydrophilic interaction liquid chromatography stationary phases: Hydrophilicity, charge effects, structural selectivity, and separation efficiency by Kawachi, Yuusuke, Ikegami, Tohru, Takubo, Hirotaka, Ikegami, Yuka, Miyamoto, Masatoshi, Tanaka, Nobuo

“…Fourteen commercially available particle-packed columns and a monolithic column for hydrophilic interaction liquid chromatography (HILIC) were characterized in…”
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Recent Progress in Monolithic Silica Columns for High-Speed and High-Selectivity Separations by Ikegami, Tohru, Tanaka, Nobuo

“…Monolithic silica columns have greater (through-pore size) (skeleton size) ratios than particulate columns and fixed support structures in a column for…”
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Retention characteristics of poly(N-(1H-tetrazole-5-yl)-methacrylamide)-bonded stationary phase in hydrophilic interaction chromatography by Fu, Xiaoqing, Cebo, Malgorzata, Ikegami, Tohru, Lämmerhofer, Michael

“…•Poly(N-(1H-tetrazole-5-yl)-methacrylamide)-bonded silica is effective for HILIC.•HILIC performance is pH dependent due acidic tetrazolyl moiety.•Increase in…”
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Method optimization of hydrophilic interaction chromatography separation of nucleotides using design of experiment approaches I: Comparison of several zwitterionic columns by Arase, Shuntaro, Kimura, Susumu, Ikegami, Tohru

“…•A systematic HILIC method for the separation of nucleotides was developed using design of experiment (DOE) approaches.•Optimized HPLC conditions were…”
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Recent advances in silica‐based monoliths: Preparations, characterizations and applications by Ghanem, Ashraf, Ikegami, Tohru

“…This mini‐review describes recent progress (2009–2010) in the field of silica‐based monolith with special emphasis on the preparation, characterization and…”
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Hydrophilic Interaction Chromatography Using a Meter-Scale Monolithic Silica Capillary Column for Proteomics LC-MS by Horie, Kanta, Kamakura, Takeo, Ikegami, Tohru, Wakabayashi, Masaki, Kato, Takashi, Tanaka, Nobuo, Ishihama, Yasushi

“…A meter-scale monolithic silica capillary column modified with urea-functional groups for hydrophilic interaction liquid chromatography (HILIC) was developed…”
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The performance of hybrid monolithic silica capillary columns prepared by changing feed ratios of tetramethoxysilane and methyltrimethoxysilane by Hara, Takeshi, Makino, Satoshi, Watanabe, Yuta, Ikegami, Tohru, Cabrera, Karin, Smarsly, Bernd, Tanaka, Nobuo

“…The effect of a feed ratio of methyltrimethoxysilane (MTMS) to tetramethoxysilane (TMOS) was studied to improve the performance of a hybrid monolithic silica…”
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Calculating Optimal Modulation Periods to Maximize the Peak Capacity in Two-Dimensional HPLC by Horie, Kanta, Kimura, Hiroshi, Ikegami, Tohru, Iwatsuka, Akira, Saad, Nabil, Fiehn, Oliver, Tanaka, Nobuo

“…Theoretical calculations are presented to optimize modulation period for maximum total peak capacity in comprehensive two-dimensional HPLC (2D-HPLC) taking…”
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Highly efficient analysis of underivatized carbohydrates using monolithic-silica-based capillary hydrophilic interaction (HILIC) HPLC by Ikegami, Tohru, Horie, Kanta, Saad, Nabil, Hosoya, Ken, Fiehn, Oliver, Tanaka, Nobuo

“…A polyacrylamide (PAAm)-modified monolithic silica capillary column of increased phase ratio, 200T-PAAm, for hydrophilic interaction liquid chromatography…”
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High-Efficiency Liquid Chromatographic Separation Utilizing Long Monolithic Silica Capillary Columns by Miyamoto, Kosuke, Hara, Takeshi, Kobayashi, Hiroshi, Morisaka, Hironobu, Tokuda, Daisuke, Horie, Kanta, Koduki, Kodai, Makino, Satoshi, Núñez, Oscar, Yang, Chun, Kawabe, Takefumi, Ikegami, Tohru, Takubo, Hirotaka, Ishihama, Yasushi, Tanaka, Nobuo

“…Long monolithic silica-C18 capillary columns of 100 μm i.d. were prepared, and the efficiency was examined using reversed-phase HPLC under a pressure of up to…”
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Monolithic silica columns for high-efficiency chromatographic separations by Tanaka, Nobuo, Kobayashi, Hiroshi, Ishizuka, Norio, Minakuchi, Hiroyoshi, Nakanishi, Kazuki, Hosoya, Ken, Ikegami, Tohru

“…Studies on the structural and chromatographic properties of monolithic silica columns were reviewed. Monolithic silica columns prepared from tetraalkoxysilane…”
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Estimation and optimization of the peak capacity of one-dimensional gradient high performance liquid chromatography using a long monolithic silica capillary column by Horie, Kanta, Sato, Yoshiaki, Kimura, Takayuki, Nakamura, Tatsuji, Ishihama, Yasushi, Oda, Yoshiya, Ikegami, Tohru, Tanaka, Nobuo

“…An estimation of the performance and optimization of gradient HPLC conditions using various columns for maximum total peak capacity was studied for “one-shot…”
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Rapid-Flow and Spin-Trapping ESR Study on Carbonyl-Conjugated Radicals of Modified Poly(vinyl alcohol) Bearing 1,2-Propanediol Pendant Moiety as Intermediates of Graft Copolymerization by Matsui, Kazuma, Nishihara, Yuko, Yamaguchi, Tomoko, Sakurai, Yasuhiro, Miyake, Yusuke, Ikegami, Tohru, Kanaori, Kenji, Tajima, Kunihiko

“…Based on the results of rapid-flow electron spin resonance (RF-ESR) and spin-trapping (ST-ESR) measurements, carbonyl-conjugated radicals derived from the…”
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Preparation of high efficiency and highly retentive monolithic silica capillary columns for reversed-phase chromatography by chemical modification by polymerization of octadecyl methacrylate by Núñez, Oscar, Ikegami, Tohru, Kajiwara, Wataru, Miyamoto, Kosuke, Horie, Kanta, Tanaka, Nobuo

“…High efficiency and highly retentive monolithic silica capillary columns were obtained by polymerization of octadecyl methacrylate using…”
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Monolithic silica rod columns for high-efficiency reversed-phase liquid chromatography by Miyazaki, Shota, Takahashi, Masakazu, Ohira, Masayoshi, Terashima, Hiroyuki, Morisato, Kei, Nakanishi, Kazuki, Ikegami, Tohru, Miyabe, Kanji, Tanaka, Nobuo

“…Chromatographic properties of a new type of monolithic silica rod columns were examined. Silica rod columns employed for the study were prepared from…”
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Blockage of spontaneous Ca2+ oscillation causes cell death in intraerythrocitic Plasmodium falciparum by Enomoto, Masahiro, Kawazu, Shin-ichiro, Kawai, Satoru, Furuyama, Wakako, Ikegami, Tohru, Watanabe, Jun-ichi, Mikoshiba, Katsuhiko

“…Malaria remains one of the world's most important infectious diseases and is responsible for enormous mortality and morbidity. Resistance to antimalarial drugs…”
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