OHMURO Satoshi
| Natural Sciences Division Fundamental Natural Sciences Science Education | Lecturer |
Researcher Information
Research activity information
Papers
- Evaluation of Selectivity of Rare Earth Metals by Hexane-1,6-diyl bis(4,4,4-trifluoro-3-oxobutanoate)
Mar. 2023, Shuhei TAKASE; Satomi MAKINO; Tatsuya MORIAI; Tetsuto KAJIYAMA; Satoshi OHMURO; Nobutoshi YOSHIHA; Hisao KOKUSEN, Solvent Extraction Research and Development, Japan, 30, 1, Research paper (scientific journal) - Effects of Residual Silanol on Solid Phase Extraction of Organic Compounds to Octadecylsilyl Silica
10 Jun. 2021, Satoshi OHMURO; Ryo ISHIZAKI; Masashi TSUKAMOTO; Shizuka NASU; Takashi YASUI; Kazutake TAKADA; Akio YUCHI, Analytical Sciences, Japan Society for Analytical Chemistry, 37, 6, Research paper (scientific journal), 10.2116/analsci.20p314, 0910-6340 - Roles of Residual Silanol in Solid Phase Extraction of Copper to Octadecylsilyl Silica in the Presence of Acetylacetone.
10 Jul. 2020, Shizuka Nasu; Satoshi Ohmuro; Takashi Yasui; Akio Yuchi, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 36, 7, Research paper (scientific journal), 10.2116/analsci.19P419, Batchwise studies have demonstrated that the retention of acetylacetone (Haa) from an aqueous phase in non-endcapped octadecylsilyl (ODS) silica with silanol intentionally left (NEC) is stronger than the retention in endcapped ODS silica under ambient pressure, due to the enhanced wettability and the contribution of adsorption to silanol (-SiOH) as well as of the distribution into the ODS phase. Equilibrium analysis on solid phase extraction (SPE) of copper ion with Haa to NEC has indicated the adsorption of 1:1 species by the proton replacement reaction with silanol to give [-SiOCu(aa)] at relatively low Haa concentrations and the adsorption of [Cu(aa)2] to silanol, as well as the distribution of [Cu(aa)2] into the ODS phase. These adsorbed and distributed species of the same composition could be differentiated by ESR spectroscopy. The advantages of residual silanol in SPE of metal ions are discussed. - 麹甘酒「甘こうじ」の機能性に関する基礎研究
Mar. 2019, 大室 智史; 縣 右門; 北本 勝ひこ, 日本薬科大学教育紀要 = The annual report of Nihon Pharmaceutical University, 日本薬科大学, 5, 2189-4841 - Adsorption of Rare-Earth Metal Ions on Natural Banana Fiber
2018, KAJIYAMA Tetsuto; ARAI Kensuke; OHMURO Satoshi; MARUYAMA Takuya; SHIMOSE Chika; MAKINO Satomi; TAKASE Shuhei; KOKUSEN Hisao, Journal of Ion Exchange, Japan Society of Ion Exchange, 29, 3, 10.5182/jaie.29.116, 0915-860X,The adsorption properties of banana fibers for rare-earth metal ions (La3+, Gd3+, Tm3+, Pr3+, Tb3+, Yb3+, Nd3+, Dy3+, Lu3+, Sm3+, Ho3+, Eu3+, and Er3+) were investigated, and the concentrations of metal ions were measured by using an inductively coupled plasma optical emission spectrometer. The pH value of the aqueous phase was measured using a pH meter equipped with glass electrodes. Over 70% of all the metal ions were adsorbed on non-treated banana fiber at pH values ranging from 2.0 to 6.0. On the other hand, using alkali-treated banana fiber, the adsorption ratio for rare-earth metal ions increased with pH. The reaction equation for the alkali-treated banana fiber system was investigated by the slope analysis between logarithmic distribution ratio and pH. The results suggest that not only the hydroxy groups originated from the interaction between cellulose and metal ions but also other negative ions might be involved in the ion-exchange reaction in the alkali-treated banana fiber. Such distinct behavior raises the possibility of the utilization of banana fibers in the separation and adsorption of metal ions.
- Improvement effect of the skill in the guidance plan of science experiment in the elementary and junior high school by understanding article of chemistry
Sep. 2017, TAKASE Shuhei; MAKINO Satomi; OHMURO Satoshi; KOSAKA Tomomi; KOKUSEN Hisao, 東京学芸大学紀要. 自然科学系, Academic Information Committee, Tokyo Gakugei University, 69, 1880-4330 - Perchlorate Selectivity of Anion Exchange Resins as Evaluated Using Ion-Selective Electrodes.
2017, Kenji Yamamoto; Shin'ya Mitsuda; Naomi Ohtake; Natsuki Murashige; Satoshi Ohmuro; Akio Yuchi, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 33, 2, Research paper (scientific journal), 10.2116/analsci.33.159, The selectivity coefficients reported for perchlorate of the high selectivity on anion exchange resins (AXRs) have not been consistent with one another. Possible errors by the unique use of four parameters (concentrations of two anions in two phases) were experimentally verified. The concentrations of perchlorate buffered at low levels (10-6 - 10-4 mol L-1) by two forms of AXRs were successfully determined by potentiometry with a perchlorate ion-selective electrode. This gave reasonable coefficients. The coefficients for perchlorate on several AXRs were independent of the relative exchange (RE), in contrast to the previous reports. On the other hand, the coefficients for fluoride of the low selectivity that were examined for comparison decreased with an increase in RE, and the dependency was more remarkable for the resins of large exchange capacity. - Enhanced Retention of Chelating Reagents in Octadecylsilyl Silica Phase by Interaction with Residual Silanol Groups in Solid Phase Extraction of Divalent Metal Ions.
2016, Satoshi Ohmuro; Kan Fujii; Takashi Yasui; Kazutake Takada; Akio Yuchi; Hisao Kokusen, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 32, 3, Research paper (scientific journal), 10.2116/analsci.32.343, Solid-phase extraction (SPE) of divalent metal ions with a lipophilic and potentially divalent hexadentate chelating reagent (H2L), with which octadecylsilyl silica (ODS), was impregnated with was studied to gain more insight into and develop the potential of this methodology. This is the first time to demonstrate that this reagent as well as other common nitrogen-containing reagents were retained both by adsorption due to hydrogen bonding between nitrogen atoms of the reagent and residual silanol groups in the ODS phase and by simple distribution into the hydrophobic space. An appreciably large amount of this reagent could be retained by the adsorption mechanism even with a relatively thin loading solution. The divalent metal ions of Mn(2+), Co(2+) and Zn(2+) were extracted as 1:1 neutral complexes ([ML]), while Ni(2+) and Cu(2+) as ion-pairs of 1:1 cationic complex ([MHL](+)) with anion in SPE with H2L. The extractability and selectivity were substantially the same as that in liquid-liquid extraction. - Synthesis of a Metal Ion Adsorbent from Banana Fibers and Its Adsorption Properties for Rare Metal Ions
2016, KAJIYAMA Tetsuto; SAKAI Shohei; INOUE Jun; YOSHINO Toru; OHMURO Satoshi; ARAI Kensuke; KOKUSEN Hisao, Journal of Ion Exchange, Japan Society of Ion Exchange, 27, 3, Research paper (scientific journal), 10.5182/jaie.27.57, 0915-860X,The synthesis of metal ion adsorbents from modified banana fibers comprising a Schiff base was investigated. The adsorption properties of a metal ion adsorbent were evaluated, and banana fiber (BF)-g-(glycidyl methacrylate)(GMA)(BF-GMA) were synthesized. A Schiff base 2,2'-{iminobis[ethane-2,1-diylnitrilo(E)methylidine]}bisphenol was synthesized via a reaction of diethylenetriamine and 5-bromo-salicyialdehyde in methanol. A metal ion adsorbent (BF-GMA(Br)) was synthesized via a reaction of the Schiff base with BF-GMA. Over 90% of La3+, Gd3+, Tm3+, Pr3+, Tb3+, Yb3+, Nd3+, Dy3+, Lu3+, Sm3+, Ho3+, Eu3+, and Er3+ were adsorbed in a pH range of 6.0–6.6 by the synthesized metal ion adsorbent. Almost 100% of In3+ at a pH value of 3.0–4.0 and 95% of Ga3+ at a pH value of 3.9 were absorbed, thereby showing the maximum adsorption percentage. Almost 15% and 25% of In3+ was adsorbed at a pH value of 1.4–1.6 and 1.8, respectively. Adsorption of Ga3+ was barely observed in the pH range of 1.4–1.8. These results show that banana fibers can be utilized as metal ion adsorbents.
- Liquid-liquid extraction of divalent transition metal ions with a novel bis-β-ketoester extraction reagent.
Oct. 2014, Satoshi Ohmuro; Hiromasa Kishi; Nobutoshi Yoshihara; Hisao Kokusen, Talanta, 128, Research paper (scientific journal), 10.1016/j.talanta.2014.04.029, Solvent extraction is a very effective method for the separation of metal ions. N,N'-bis(2-hydroxy-phenylmethyl)-N,N'-bis(2-pyridylmetyl)-1,2-ethanediamine derivatives have been researched for solvent extraction of metal ions. In this study. We synthesized a bis-β-ketoester ligand and evaluated its selectivity in extracting divalent transition metal ions. The ligand, hexane-1,6-diyl bis (4,4,4-trifluoro-3-oxobutanoate) (H2hdfob or H2L) was synthesized in one step by transesterification of ethyl 4,4,4-trifluoroacetoacetate with 1,6-hexanediol. The multidentate ligand H2hdfob successfully extracted divalent transition metal ions into its organic phase. The relationship between logD, which is a distribution ratio (D), and pH or log[H2L]o exhibited linear relationships with slopes of approximately +2 and +1, respectively. Based on these results, we proposed a mechanism of extraction with H2hdfob. Extraction with tetradentate H2hdfob provides a new method for enhancing selectivity of divalent metal ions, in comparison to other bidentate ligands.
Presentations
- 液液固相間におけるH2bbpenを用いた希土類金属イオンの捕集に関する残存シラノール基の効果
13 Sep. 2024, 日本分析化学会第７３年会, Poster presentation - 梅エキス中に含まれるムメフラールの定量
18 May 2024, 第８４回分析化学討論会, Poster presentation - 液液固相間における H2bbpenを用いた希土類金属 イオンの捕集に関する ODSシリカの効果
14 Sep. 2023, 日本分析化学会 ７２年会, Poster presentation - 1,14-diphenyltetradecane-1,3,12,14- tetraoneおよびその誘導体による希土類金属イオ ンの抽出機構
14 Sep. 2023, 日本分析化学会 ７２年会, Poster presentation - 薬学部における災害時医療教育～オンライン講義を活用して～
第27回日本未病学会学術総会, Oral presentation(general) - 浮遊有機液滴の固化を伴う空気支援分散液液マイクロ抽出法を利用した尿中覚せい剤の分析法の開発
Jun. 2020, 第87回日本分析化学会有機微量分析研究懇談会・第113回計測自動制御学会力学量計測部会・第37回合同シンポジウム, Poster presentation - 水溶性ポリマーを用いる紙製微小流路作成法の基礎検討
Jun. 2020, 第87回日本分析化学会有機微量分析研究懇談会・第113回計測自動制御学会力学量計測部会・第37回合同シンポジウム, Poster presentation - "Development of solid phase analytical derivatization for the analysis of drugs in human urine "
Mar. 2020, International Research Conference on Pharmaceutical and Allied Sciences 2020, Poster presentation - イオン交換樹脂への複素環式化合物の保持機構の検討
Mar. 2020, 日本薬学会第140年会, Poster presentation - 浮遊有機液滴の固化を伴う空気支援分散液液マイクロ抽出法を利用した尿中覚せい剤の分析法の開発
Mar. 2020, 日本薬学会第140年会, Poster presentation - 尿中覚せい剤の現場予試験におけるDRIVEN-FLOW®の有効性の検討
Mar. 2020, 日本薬学会第140年会, Poster presentation - ペン描画法による紙製微小流路電気化学センサーの作成と尿酸検出への応用
Sep. 2019, 日本分析化学会 第68年会, Poster presentation - 透析膜で被覆したグラファイト描画電極の試作
Aug. 2019, 第32回バイオメディカル分析科学シンポジウム, Poster presentation - グラファイト描画電極上におけるヘキサシアニド鉄(II)酸カリウムの方形波ボルタンメトリー
Aug. 2019, 第32回バイオメディカル分析科学シンポジウム, Poster presentation - 固相担体上での誘導体化を利用した尿中薬物の分析法の検討
Aug. 2019, 第32回バイオメディカル分析科学シンポジウム, Poster presentation - 「不要」を「活用」する 〜残存シラノール基を活かした分離と分析〜
Jan. 2019, 東京学芸大学 化学科学術講演会, Public discourse, seminar, tutorial, course, lecture and others - Adsorption of Rare-Earth metal ions on Banana Fiber
Sep. 2018, ICIE 2018, Poster presentation - 非エンドキャップ型ODSシリカを用いた固相抽出におけるアセチルアセトンとその金属錯体の保持
Sep. 2017, 日本分析化学会 67年会, Oral presentation(general) - 固相抽出における残留農薬成分の保持に対するODSシリカの性能評価
Sep. 2017, 日本分析化学会 66年会, Oral presentation(general) - ODSシリカを用いた固相抽出法における残存シラノール基の役割
Nov. 2016, 第35回溶媒抽出討論会, Oral presentation(general) - 固相抽出法に適したODSシリカの設計指針
Sep. 2016, 日本分析化学会 65年会, Oral presentation(general) - ODSを用いた含酸素化合物の固相抽出における残存シラノール基の役割
Sep. 2016, 第35回分析化学中部地区夏期セミナー, Poster presentation - 多様なODSへの芳香族炭化水素の分配
Sep. 2016, 第35回分析化学中部地区夏期セミナー, Poster presentation - Solvent extraction of rare earth metal ions using hexane-1,6-diyl bis(4,4,4-trifluoro-3-oxobutanoate) into chloroform
Jun. 2016, Rare Earths 2016–Sapporo, Poster presentation - ODSを用いた固相抽出法における残存シラノール基への含酸素化合物の吸着
May 2016, 第76回分析化学討論会, Poster presentation - 含窒素化合物の保持に対するODSの修飾率および細孔径の影響
May 2016, 第76回分析化学討論会, Oral presentation(general) - エンドキャップ型ODSへの含窒素化合物の保持に対する温度の影響
Nov. 2015, 「分析中部・ゆめ21」若手交流会 第15回高山フォーラム, Poster presentation - 固相抽出法における含酸素配位子とその金属錯体のODSへの保持(2)
Nov. 2015, 「分析中部・ゆめ21」若手交流会 第15回高山フォーラム, Poster presentation - 固相抽出法における含酸素配位子とその金属錯体のODSへの保持
Oct. 2015, 日本イオン交換学会・日本溶媒抽出学会連合年会, Poster presentation - 含窒素配位子とその錯体のODSへの保持に対する残存シラノール基の影響
Oct. 2015, 日本イオン交換学会・日本溶媒抽出学会連合年会, Poster presentation - 弱塩基性陰イオン交換樹脂を用いた酸の共吸着に対する内部環境の影響
Oct. 2015, 日本イオン交換学会・日本溶媒抽出学会連合年会, Poster presentation - 残存シラノール基との相互作用による抽出試薬の保持と二価遷移金属イオンの固相抽出
Sep. 2015, 日本分析化学会 64年会, Oral presentation(general) - ODSへの含窒素配位子の保持とその錯体のイオン対抽出に対する残存シラノール基の影響
Aug. 2015, 第34回分析化学中部地区夏期セミナー, Poster presentation - ODS 中の残存シラノールを逆手にとる金属イオンの固相抽出
Aug. 2015, 第34回分析化学中部地区夏期セミナー ポスドク・プレドク依頼講演, Oral presentation(general) - 固相抽出におけるODSへの含窒素化合物の保持機構
May 2015, 第75回分析化学討論会, Oral presentation(general) - 非エンドキャップ型ODSによる化学種の保持挙動
Nov. 2014, 第45回中部化学関係学協会支部連合秋季大会, Oral presentation(general) - 非エンドキャップ型ODSに対する含窒素化合物の保持機構
Nov. 2014, 「分析中部・ゆめ21」若手交流会 第14回高山フォーラム, Poster presentation - 弱塩基性イオン交換樹脂の性能に対する交換容量の影響(2)
Sep. 2014, 第33回分析化学中部地区夏期セミナー, Poster presentation - 弱塩基性イオン交換樹脂の性能に対する交換容量の影響
Sep. 2014, 日本分析化学会 63年会, Poster presentation - H2bbpen誘導体を用いた希土類金属イオンの抽出挙動
Nov. 2013, 第32回溶媒抽出討論会, Poster presentation - Hexane-1,6-diyl bis(4,4,4-trifluoro-3-oxobutanoate)を用いた二価遷移金属イオンの抽出機構
Nov. 2013, 第32回溶媒抽出討論会, Oral presentation(general) - Diethyl 1,6-hexanediyl dimalonateを用いた金属イオン捕集における二相間分配機構の検討
Sep. 2013, 日本分析化学会62年会, Poster presentation - β-diketone吸着担持型新規分離材による二価遷移金属イオンの捕集挙動
May 2013, 第73回分析化学討論会, Poster presentation - H2Clbbpenと2座配位子を用いた希土類金属イオンの溶媒抽出
Nov. 2012, 第31回溶媒抽出討論会, Poster presentation - H2salprpi誘導体を吸着担持させた新規分離材による2価遷移金属イオンの吸着挙動
Sep. 2012, 日本分析化学会 61年会, Poster presentation - Investigation of hydrogen peroxide decomposition to improve the understanding of a reaction
Jul. 2012, 22nd International Conference on Chemistry Education, Poster presentation - 表面修飾したシリカゲルに抽出試薬を吸着担持した分離材の錯生成吸着機構
May 2012, 第72回分析化学討論会, Poster presentation
