Development of Transparent Film Having Functions of Separation, Concentration, and Sensing

具有分离、浓缩、传感功能的透明薄膜的研制

• 批准号: 01470063
• 负责人: YOTSUYANAGI Takao
• 金额: $ 3.33万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01470063/
• 关键词: Plasticizer; Polyvinylchloride; Visual Colorimetry; Film; Spectrophotometry; Fluorophotometry; lon-pair; Solvent Extraction; PVCフィルム; イオン対抽出; 分離濃縮媒体; 銅; ネオクプロイン; ミセル; 蛍光色素; 蛍光媒体; フッ素; 陰イオン性界面活性剤

A new, highly sensitive, and simple sensing method by the use of plasticized PVC film has been developed. The analyte is concentrated on the surface of the transparent film containing 20-30 % of plasticizer such as di-n-octylphthalate (DOP), which serves as a water immiscible second phase for extraction. The resulting film is measured by visual colorimetry or spectrophotometry. Extraction-fluorphotometry can be also adopted for this system. When a colored species is used as the counter ion in the ion-pair extraction colorimetry, marked enhancement of the sensitivity can be realized by the large molar absorptibity of the counter ion and by the color combination of the counter ion, the metal chelate, and the excess reagent, which is effective for discrimination by human eyes. While, adsorption of mono color species, such as the ion-pair of zephiramine (Z^+) and cupper (I) -neocuproin chelate, [CuL_2]^-, on PVC film also offers a high sensitivity without any problem of blank absorption. The detection limit for cupper is 4X10^<-7> mol dm^<-3> by visual colorimetry. The depth profile of the extracted species in the film phase has been investigated. Further, both of the soft PVC containing more than 70 wt% of plasticizer and the solvent without PVC have proved to be useful as new medium for ultra-concentration (3X10^4 hold), separation, and sensing of trace species.

开发出一种使用增塑 PVC 薄膜的新型、高灵敏度且简单的传感方法。分析物浓缩在含有 20-30% 增塑剂（例如邻苯二甲酸二正辛酯 (DOP)）的透明薄膜表面，作为萃取时与水不混溶的第二相。通过目视比色法或分光光度法测量所得膜。该系统也可以采用萃取荧光光度法。当在离子对萃取比色法中使用有色物质作为抗衡离子时，通过抗衡离子的大摩尔吸光度以及抗衡离子、金属螯合物和过量试剂的颜色组合，可以实现灵敏度的显着增强，这对于人眼辨别是有效的。同时，单色物质，例如西非拉明 (Z^+) 和铜 (I) -新铜蛋白螯合物 [CuL_2]^- 的离子对，在 PVC 膜上的吸附也提供了高灵敏度，没有任何空白吸收问题。通过目视比色法，铜的检测限为4X10^<-7>mol dm^<-3>。研究了薄膜相中提取物质的深度剖面。此外，含有超过 70 wt% 增塑剂的软 PVC 和不含 PVC 的溶剂都已被证明可用作超浓缩（3X10^4 保持）、分离和痕量物质传感的新介质。

项目成果

Emiko Kaneko, Hiroko Tanno, Takao Yotsuyanagi: "New Simple Film Colorimetry of Serum Iron (III) with PVC Film" Proceedings of international Trace Analysis Symposium 1990,. 63-70 (1990)

Emiko Kaneko、Hiroko Tanno、Takao Yotsuyanagi：“采用 PVC 膜的血清铁 (III) 的新型简单膜比色法”1990 年国际痕量分析研讨会论文集。

E.Kaneko,H.Tanno,T.Yotsuyanagi: "A New Simple Colorimetry of Serum Iron(III)with PVC Film" International Trace Analysis Symposium,Proceedings.

E.Kaneko、H.Tanno、T.Yotsuyanagi：“采用 PVC 膜的血清铁 (III) 的新型简单比色法”国际痕量分析研讨会，论文集。

Takao Yotsuyanagi: "Analytical Separations Based on Ionーpair Extration Principle ーDesign of Reagents and Systemsー" Proceedings of International Solvent Extraction Conference 1990. (1991)

Takao Yotsuyanagi：“基于离子对萃取原理的分析分离 - 试剂和系统的设计 -”1990 年国际溶剂萃取会议论文集。（1991 年）

Emiko Kaneko,Hiroko,Tanno,Takao Yotsuyanagi: "Ionーpair Adsorption Film Colorimetry of Iron〈III〉 in Water Samples and Human Serum" Mikrochimica Acta,. (1991)

Emiko Kaneko、Hiroko、Tanno、Takao Yotsuyanagi：“水样和人血清中铁〈III〉的离子对吸附膜比色法”Mikrochimica Acta，（1991）。

Takao Yotsuyanagi: "Analytical Separations Based on Ion-pair Extraction Principle -Design of Reagents and Systems-" Proceedings of International Solvent Extraction Conference 1990,. (1991)

Takao Yotsuyanagi：“基于离子对萃取原理的分析分离-试剂和系统的设计-”1990年国际溶剂萃取会议论文集，。