Publications by authors named "Hiroyuki Okamura"

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Recent Progress in Ionic Liquid Extraction for the Separation of Rare Earth Elements.
Hiroyuki Okamura, Naoki Hirayama

Anal Sci· January 2021

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Extraction Ability of 4-Benzoyl-3-phenyl-5-isoxazolone towards 4f-Ions into Ionic and Molecular Media.
Maria Atanassova, Hiroyuki Okamura, Ayano Eguchi, Yuki Ueda, Tsuyoshi Sugita

Anal Sci· August 2018

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Japan Flavour and Fragrance Materials Association's (JFFMA) safety assessment of food-flavouring substances uniquely used in Japan that belong to the class of aliphatic primary alcohols, aldehydes, carboxylic acids, acetals and esters containing additional oxygenated functional groups.
Kenji Saito, Yasuko Hasegawa-Baba, Fumiko Sekiya, Shim-Mo Hayashi, Yoshiharu Mirokuji, Hiroyuki Okamura

Food Addit Contam Part A Chem Anal Control Expo Risk Assess· September 2017

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The Japan Flavour and Fragrance Materials Association's (JFFMA) safety assessment of acetal food flavouring substances uniquely used in Japan.
Hiroyuki Okamura, Hajime Abe, Yasuko Hasegawa-Baba, Kenji Saito, Fumiko Sekiya

Food Addit Contam Part A Chem Anal Control Expo Risk Assess· October 2016

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Comprehensive extraction study using N,N-dioctyldiglycolamic acid.
Kojiro Shimojo, Ayaka Nakai, Hiroyuki Okamura, Takumi Saito, Akira Ohashi

Anal Sci· April 2015

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Highly selective synergism for the extraction of lanthanoid(III) ions with β-diketones and trioctylphosphine oxide in an ionic liquid.
Hiroyuki Okamura, Hitomi Takagi, Taku Isomura, Kotaro Morita, Hirohisa Nagatani

Anal Sci· November 2014

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Highly efficient extraction separation of lanthanides using a diglycolamic acid extractant.
Kojiro Shimojo, Noboru Aoyagi, Takumi Saito, Hiroyuki Okamura, Fukiko Kubota

Anal Sci· October 2014

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The JFFMA assessment of flavoring substances structurally related to menthol and uniquely used in Japan.
Yoshiharu Mirokuji, Hajime Abe, Hiroyuki Okamura, Kenji Saito, Fumiko Sekiya

Food Chem Toxicol· February 2014

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Extraction behavior and selective separation of lead(II) using N,N-dioctyldiglycol amic acid.
Kojiro Shimojo, Ayaka Nakai, Hiroyuki Okamura, Akira Ohashi, Hirochika Naganawa

Anal Sci· June 2013

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Specific cooperative effect of a macrocyclic receptor for metal ion transfer into an ionic liquid.
Hiroyuki Okamura, Atsushi Ikeda-Ohno, Takumi Saito, Noboru Aoyagi, Hirochika Naganawa

Anal Chem· November 2012

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Validation of the (Q)SAR combination approach for mutagenicity prediction of flavor chemicals.
Atsushi Ono, Mika Takahashi, Akihiko Hirose, Eiichi Kamata, Tomoko Kawamura, Hiroyuki Okamura

Food Chem Toxicol· May 2012

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Synergistic effect of 18-crown-6 derivatives on chelate extraction of lanthanoids(III) into an ionic liquid with 2-thenoyltrifluoroacetone.
Hiroyuki Okamura, Naoki Hirayama, Kotaro Morita, Kojiro Shimojo, Hirochika Naganawa

Anal Sci· May 2011

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Production of highly charged heavy ions by 18 GHz superconducting electron cyclotron resonance at Research Center for Nuclear Physics.
Tetsuhiko Yorita, Kichiji Hatanaka, Mitsuhiro Fukuda, Mitsuru Kibayashi, Shunpei Morinobu, Hiroyuki Okamura

Rev Sci Instrum· February 2010

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Dimensional change measurements of conventional and flowable composite resins using a laser displacement sensor.
Taira Miyasaka, Hiroyuki Okamura

Dent Mater J· September 2009

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Cooperative intramolecular interaction of diazacrown ether bearing beta-diketone fragments on an ionic liquid extraction system.
Kojiro Shimojo, Hiroyuki Okamura, Naoki Hirayama, Shigeo Umetani, Hisanori Imura

Dalton Trans· July 2009

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Ionic liquid synergistic cation-exchange system for the selective extraction of lanthanum(III) using 2-thenoyltrifluoroacetone and 18-crown-6.
Naoki Hirayama, Hiroyuki Okamura, Keiji Kidani, Hisanori Imura

Anal Sci· June 2008

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Development of an 18 GHz superconducting electron cyclotron resonance ion source at RCNP.
Tetsuhiko Yorita, Kichiji Hatanaka, Mitsuhiro Fukuda, Mitsuru Kibayashi, Shunpei Morinobu, Hiroyuki Okamura

Rev Sci Instrum· February 2008

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Development of dental composite resin utilizing low-shrinking and low-viscous monomers.
Hiroyuki Okamura, Taira Miyasaka, Tuneo Hagiwara

Dent Mater J· September 2006

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