T
Tomonari Umemura
Researcher at Tokyo University of Pharmacy and Life Sciences
Publications - 113
Citations - 1924
Tomonari Umemura is an academic researcher from Tokyo University of Pharmacy and Life Sciences. The author has contributed to research in topics: Inductively coupled plasma mass spectrometry & Ion chromatography. The author has an hindex of 24, co-authored 109 publications receiving 1723 citations. Previous affiliations of Tomonari Umemura include Gunma University & Nagoya University.
Papers
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Preparation and application of methacrylate-based cation-exchange monolithic columns for capillary ion chromatography.
TL;DR: Polymer-based strong cation-exchange monolithic capillary columns with different capacities constructed for ion chromatography by radical polymerization of glycidyl methacrylate and ethylene dimethacrylated with significant changes in the selectivity and resolution were observed.
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Electrochemically active bacteria sense electrode potentials for regulating catabolic pathways
TL;DR: It is shown that EAB can sense electrode potentials by the Arc system and activate NADH-dependent catabolic pathway to generate ATP, and it is suggested that these findings may facilitate the use of EAB in biotechnological processes and offer the molecular bases for their ecological strategies in natural habitats.
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Multielement determination of trace metals in seawater by ICP-MS with aid of down-sized chelating resin-packed minicolumn for preconcentration.
TL;DR: The compiled reference values for the concentrations of REEs in CASS-3,NASS-4, and NASS-5 were proposed based on the observed values and reference data for REEsIn these CRMs, which agreed well with their certified values.
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Preparation of low flow-resistant methacrylate-based monolithic stationary phases of different hydrophobicity and the application to rapid reversed-phase liquid chromatographic separation of alkylbenzenes at high flow rate and elevated temperature
TL;DR: Among the prepared monolithic stationary phases, C18-methacrylate monoliths polymerized from a binary porogenic solvent of isoamyl alcohol and 1,4-buthandiol exhibited the most promising performance in terms of hydraulic resistance and column efficiency.
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Assay of Alkaline Phosphatase in Salmon Egg Cell Cytoplasm with Fluorescence Detection of Enzymatic Activity and Zinc Detection by ICP-MS in Relation to Metallomics Research
Takuya Hasegawa,Masaru Sugita,Kohei Takatani,Hirotaka Matsuura,Tomonari Umemura,Hiroki Haraguchi +5 more
TL;DR: Assay of alkaline phosphatase (ALP) in salmon egg cell cytoplasm was performed by size exclusion chromatography with fluorescence detection of enzymatic activity and element-selective detecti...