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九州産業大学工学部研究報告(Bulletin of the Faculty of Engineering Kyushu Sangyo University) >
第42号 >
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http://hdl.handle.net/11178/4540
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Title: | 均一沈殿法による固体膜型コバルト(II)イオンセンサー(物質生命化学科) |
Other Titles: | Construction of Solid-State Cobalt (II) Ion-Sensor Utilized Monodispersed Ag_2S and CoS Particles by Homogenious Precipitation(DEPARTMENT OF APPLIED CHEMISTRY AND BIOCHENISTRY) |
Authors: | 金崎, 裕子 瀬戸嶋, 義隆 今任, 稔彦 山崎, 澄男 大浦, 博樹 KANASAKI, Hiroko SETOJIMA, Yositaka IMATO, Toshihiko YAMASAKI, Sumio OHURA, Hiroki カナサキ, ヒロコ セトジマ, ヨシタカ イマトウ, トシヒコ ヤマサキ, スミオ オオウラ, ヒロキ 九州産業大学工学研究科 / トランスコスモス株式会社 / 九州大学大学院工学研究院応用化学部門 / 九州産業大学物質生命化学教室 / 九州産業大学物質生命化学教室 |
Keywords: | Cobalt ion-sensor fine particles homogenious precipitation |
Issue Date: | 20-Dec-2005 |
Publisher: | 九州産業大学工学部 |
Abstract: | In order to examine the response characteristics of a cobalt (II) ion-sensor (Co(II)-ISE) with a solid-state sulfide membrane, several kinds of mixed sulfidis of silver and cobalt were prepared by different methods. Consequently, Co (II)-ISE fabricated by fine particles Ag_2S and CoS powders (ca. 1μm diameter) formed from homogeneous precipitation showed a much better response than those of other methods. The Ag_2S and CoS particles were synthesized from a mixed solution of thioacetamide with and without urea, silver nitrate and cobalt nitrate, respectively, at 70℃ over 2h period. The electrode showed a near-Nernstian response to Co^<2+> in the concentration range from 10^<-4> and 10^<-1> mol/l, and found to have several fairly well such as short response time, reproducible potential stability and life-time. It was assumed that fine Ag_2S and CoS particles prepared by homogenious precipitation method could play an important role in the performance of such an electrode. |
URI: | http://hdl.handle.net/11178/4540 |
Appears in Collections: | 第42号
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