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Masashi Nishida

Sojo University

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Featured researches published by Masashi Nishida.

Bunseki Kagaku | 1998

Development of the rotation mixing technology for approaching to plug-flow in a FIA reaction tube.

Kiyoshi Hirakawa; Masashi Nishida; Isao Yoshida; Daido Ishii

FIAの反応管内の流れを栓流に近付けるための新しい手法として管内を回転かくはんする技術の開発を行った.内径1.0mm,長さ1mのテフロン管を用い,その中心部分に回転かくはんのために外径0.35mmの溶融シリカキャピラリーを全長にわたって挿入し,適当な速度で軸を回転することによって,反応管内を流れる液体の直径方向へのかくはんを行つた.このかくはん効果により流れが栓流に近付き,試料として注入した過マンガン酸カリウム溶液のフローシグナルのピーク形状が左右対称でシャープとなり,その改善が認められた.又,内径0.5mm,長さ1mの反応管についてもその効果を認めた.更に,FIAの反応管として内径1.0mm,長さ1mのテフロン管を用い,鉄(III)とチオシアン酸カリウムとの発色反応について検討し,本手法が有効であることを確認した.

Bulletin of the Chemical Society of Japan | 1997

Molecular Association of Water-Soluble Calixarenes with Several Stilbene Dyes and Its Application to the Facile Determination of Cationic Surfactant Concentrations

Masashi Nishida; Daido Ishii; Isao Yoshida; Seiji Shinkai

Analytical Sciences | 1998

Another Uranophile Sodium Hydroxycalix(8)arene-p-sulfonate: Its Acid Dissociation and Divalent Metal Ion Binding Properties.

Miwako Sonoda; Kenji Hayashi; Masashi Nishida; Daido Ishii; Isao Yoshida

Analytical Sciences | 2002

Highly selective transport of a uranyl ion through a liquid membrane containing a lipophilic ion-associate of methyltrioctylammonium and hydroxycalix[n]arene-p-sulfonates (n = 6, 8) as metal carriers.

Hirotomo Kondo; Masashi Nishida; Isao Yoshida

Analytical Sciences | 1999

Super Uranophile, Water-Soluble Calixarenes: Their Metal Complexes, Stability Constants and Selective Reactivity to Uranyl Ion.

Miwako Sonoda; Masashi Nishida; Daido Ishii; Isao Yoshida

Bulletin of the Chemical Society of Japan | 2000

Highly Selective Solvent Extraction of Uranyl Ion Using Super Uranophiles in the Presence of Methyltrioctylammonium Chloride

Masashi Nishida; Hirotomo Kondo; Miwako Sonoda; Daido Ishii; Isao Yoshida

Analytical Sciences | 1994

Highly Sensitive Spectrofluorometric Determination of Terbium(III) with Tetrasodiumcalix[4]arene-p-tetrasulfonate

Isao Yoshida; Kazuhiro Koyabu; Masashi Nishida; Fumio Sagara; Daido Ishii; Seiji Shinkai

Bulletin of the Chemical Society of Japan | 1998

Highly Efficient Solvent Extraction of Water-Soluble Macrocyclic Metal Ligands, Hydroxycalix(n)arene-p-sulfonates (n=4, 6, 8) with Trioctylmethylammonium Chloride.

Masashi Nishida; Miwako Sonoda; Daido Ishii; Isao Yoshida

Analytical Sciences | 2001

Template adsorbent composed of particles impregnated with pre-organized ligand through its metal complexes: uranyl ion-selective adsorbents.

Shigeki Seki; Masashi Nishida; Isao Yoshida

Chemistry Letters | 1999

Super Uranophiles: Application to Highly Effective Solvent Extraction of Uranyl Ion in the Presence of Methyltrioctylammonium Chloride

Masashi Nishida; Miwako Sonoda; Daido Ishii; Isao Yoshida

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Isao Yoshida

Kyushu University

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Daido Ishii

Nagoya University

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Masayoshi Koga

Sojo University

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Seiji Shinkai

Kyushu University

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Hirotomo Kondo

Sojo University

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Makiko Kajiwara

Sojo University

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Shigeki Seki

Sojo University

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