Development of flow-through chemical sensors for process control

开发用于过程控制的流通式化学传感器

• 批准号: 07555264
• 负责人: IMATO Toshihiko
• 金额: $ 4.86万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555264/
• 关键词: Chemical Sensor; Potentiometry; Spectrophotometry; Flow-through type; Process Control; 光ファイバ

The purpose of this project is to develop a potentiometric- and a spectrophotometric sensor systems for process control of chemical industry. The sensor system is flow-though type sensors for pH,metal ions and redox species sensor based on the reaction with a pH,metal and redox potential buffer solution. Followings are the summary of results of this project.(1) Potentiometric sensorsA flow system for determination of acids and bases was designed by using a pH buffer solution prepared from polyacrylic acid or polyethyleneimine, a dialysis unit and a flow-through type pH glass electrode detector. The sensitivity of the detector to acids and bases was found to depend on the concentration of polyelectrolytes and a sample volume injected into the flow system. Concentrated hydrochloric acid and sodium hydroxide solution up to about 10 M could be successfully determined by the developed sensor system. A flow system for determination of heavy metal ions was also designed by using a cupper (II) … More ion buffer solution prepared by polyacrylic acid or polyethyleneimne and cupper (II), the dialysis unit and a flow-through thpe cupper (II) ion selective electrode detector. The sensor was found to respond to many metal ions such as zinc, nickel, cobalt and lead ions. A flow-through-type redox electrode was developed by using an Fe (II) and Fe (III) form polystirenesuflonic acid solution as an inner solution of a redox electrode. The inner solution was covered with a dialysis membrane. The potential change of the inner electrode is the measure of the concentration of redox species to be determined. Hydrogen peroxide and ascorbic acid were successfully determined by the developed sensor.(2) Spectrophotometric sensorsA flow system for determination of acids, bases and metal ions was designed by using a pH buffer solution and a flow-through cell packed with controlled pored glass beads immobilized with a pH indicator, fluorescein. Fluorescence intensity was found to be proportional to the concentration of hydrochloric acid and sodium hydroxide. A flow system for determination of Mg^<2+> and La^<3+> was designed by using a NTA solution or EDTA solution and a flow-through cell prepared by a tubular type anion exchange membrane immobilized with Calmagite or ArsenazoIII.A flow through cell immobilized Calmagite in to plasticized poly (vinyl chloride) membrane was also prepared. The detector signal from the flow cell was proportional to the concentration of Mg^<2+> and La^<3+> and the response was reversible. Less

该项目的目的是开发用于化学工业过程控制的电位和分光光度传感器系统。该传感器系统是基于与pH、金属和氧化还原电位缓冲溶液的反应的用于pH、金属离子和氧化还原物质传感器的流通型传感器。本课题的研究成果如下：(1)电位传感器利用聚丙烯酸或聚乙烯亚胺配制的pH缓冲溶液、透析装置和流通式pH玻璃电极检测器，设计了酸碱测定的流动系统。发现检测器对酸和碱的灵敏度取决于聚电解质的浓度和注入流动系统的样品体积。所开发的传感器系统可以成功测定高达约10 M的浓盐酸和氢氧化钠溶液。采用聚丙烯酸或聚乙烯亚胺和铜(II)配制的铜(II)离子缓冲溶液、透析装置和流通式铜(II)离子选择电极检测器设计了测定重金属离子的流通系统。人们发现该传感器对许多金属离子有反应，例如锌、镍、钴和铅离子。采用Fe(II)和Fe(III)形式的聚苯乙烯磺酸溶液作为氧化还原电极的内部溶液，开发了流通式氧化还原电极。内部溶液用透析膜覆盖。内电极的电势变化是待测定的氧化还原物质浓度的量度。所开发的传感器成功地测定了过氧化氢和抗坏血酸。(2)分光光度传感器利用pH缓冲溶液和装有固定有pH指示剂荧光素的受控多孔玻璃珠的流通池设计了用于测定酸、碱和金属离子的流动系统。发现荧光强度与盐酸和氢氧化钠的浓度成正比。采用NTA溶液或EDTA溶液和固定有钙镁石或胂Ⅲ的管式阴离子交换膜制备的流通池设计了测定Mg^2+和La^3+的流通系统。还制备了固定有钙镁石的流通池到增塑聚氯乙烯膜上。来自流动池的检测器信号与Mg 2+ 和La 3+ 的浓度成比例并且响应是可逆的。较少的

项目成果

Hiroki Ohura: "Potentiometric Flowinjection delermination of trace hydrogen peroxide based on its induced reaction with iron(III)-iron(II)potential buffer containing bromide and Mo(VII)" Talanta. 43巻. 943-950 (1996)

Hiroki Ohura：“基于与含有溴化物和 Mo(VII) 的铁 (III)-铁 (II) 电位缓冲液的诱导反应对痕量过氧化氢进行电位流动注射脱层”，Talanta，第 43 卷，943-950。

Hiroki Ohura: "Potertiometric flow-injection determination of trace hydrogen peroxide based on its induced reaction with iron (VI)-iron (II) potential buffer containing bromide and Mo (VI)" Talanta. 43巻. 943-950 (1996)

Hiroki Ohura：“基于与含有溴化物和 Mo (VI) 的铁 (VI)-铁 (II) 电位缓冲液的诱导反应来测定痕量过氧化氢”Talanta，第 43 卷，943-950 (1996)。

Sadayuki Koizumi: "Effect of the concentrations of triphenyltin chloride and anion exchanger on the anion selectivity of a plasticized PVC membrane electrode" Fresenius Journal of Analytical Chemistry. 357巻. 37-43 (1997)

Sadayuki Koizumi：“三苯基氯化锡和阴离子交换剂的浓度对增塑 PVC 膜电极的阴离子选择性的影响”Fresenius Journal of Analytical Chemistry 357. 37-43 (1997)。

今任稔彦: "緩衝液との反応を利用するフローインジェクション滴定法" Journal of Flow-Injection Analysis. 12. 145-166 (1995)

Toshihiko Imato：“使用缓冲溶液反应的流动注射滴定法”流动注射分析杂志 12. 145-166 (1995)。

今任稔彦: "イオンセンサ「機器分析ガイドブック」" 丸善 日本分析化学会編, 27 (1996)

今藤俊彦：《离子传感器“仪器分析指南”》丸善，日本分析化学会编，27（1996）